Merge branch 'main' into feat/post-processing-effects

- Story items can be pinned to a specific generation version via
  toolbar dropdown (shows when clip is selected and has >1 version)
- version_id column on story_items with migration, validated against
  the generation's versions before saving
- Split/duplicate preserve the source clip's pinned version
- Export and playback resolve version-specific audio paths
- Extracted _build_item_detail helper in stories.py (DRY cleanup)
- Story list restyled from rounded cards to flat rows with rounded
  hover/active states, gradient header fade, and dynamic bottom
  padding that accounts for track editor + generate box

.bumpversion.cfg

@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.1.13
+current_version = 0.2.0
 commit = True
 tag = True
 tag_name = v{new_version}

.github/workflows/build-cuda.yml

@@ -1,73 +0,0 @@
-name: Build CUDA Backend
-
-on:
-  workflow_dispatch:
-  push:
-    tags:
-      - "v*"
-
-jobs:
-  build-cuda-windows:
-    runs-on: windows-latest
-    permissions:
-      contents: write
-
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Setup Python
-        uses: actions/setup-python@v5
-        with:
-          python-version: "3.12"
-          cache: "pip"
-
-      - name: Install Python dependencies
-        run: |
-          python -m pip install --upgrade pip
-          pip install pyinstaller
-          pip install -r backend/requirements.txt
-
-      - name: Install PyTorch with CUDA 12.1
-        run: |
-          pip install torch --index-url https://download.pytorch.org/whl/cu121 --force-reinstall --no-deps
-          pip install torchaudio --index-url https://download.pytorch.org/whl/cu121
-
-      - name: Verify CUDA support in torch
-        run: |
-          python -c "import torch; print(f'CUDA available in build: {torch.cuda.is_available()}'); print(f'CUDA version: {torch.version.cuda}')"
-
-      - name: Build CUDA server binary
-        shell: bash
-        working-directory: backend
-        run: python build_binary.py --cuda
-
-      - name: Split binary for GitHub Releases
-        shell: bash
-        run: |
-          python scripts/split_binary.py \
-            backend/dist/voicebox-server-cuda.exe \
-            --output release-assets/
-
-      - name: Upload split parts to GitHub Release
-        if: startsWith(github.ref, 'refs/tags/')
-        uses: softprops/action-gh-release@v1
-        with:
-          files: |
-            release-assets/voicebox-server-cuda.part*.exe
-            release-assets/voicebox-server-cuda.sha256
-            release-assets/voicebox-server-cuda.manifest
-          draft: true
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-
-      - name: Upload binary as workflow artifact (for testing)
-        uses: actions/upload-artifact@v4
-        with:
-          name: voicebox-server-cuda-windows
-          path: backend/dist/voicebox-server-cuda.exe
-          retention-days: 7
-
-  # Linux CUDA build can be added later with:
-  # build-cuda-linux:
-  #   runs-on: ubuntu-22.04
-  #   ...

.github/workflows/release.yml

@@ -22,10 +22,6 @@ jobs:
             args: "--target x86_64-apple-darwin"
             python-version: "3.12"
             backend: "pytorch"
-          - platform: "ubuntu-22.04"
-            args: ""
-            python-version: "3.12"
-            backend: "pytorch"
           - platform: "windows-latest"
             args: ""
             python-version: "3.12"
@@ -37,10 +33,10 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Install dependencies (ubuntu only)
-        if: matrix.platform == 'ubuntu-22.04'
+        if: contains(matrix.platform, 'ubuntu') || contains(matrix.platform, 'namespace')
         run: |
           sudo apt-get update
-          sudo apt-get install -y libwebkit2gtk-4.1-dev libappindicator3-dev librsvg2-dev patchelf llvm-dev
+          sudo apt-get install -y libwebkit2gtk-4.1-dev libappindicator3-dev librsvg2-dev patchelf llvm-dev libasound2-dev
 
       - name: Install LLVM (macOS)
         if: matrix.platform == 'macos-latest' || matrix.platform == 'macos-15-intel'
@@ -55,6 +51,11 @@ jobs:
           python-version: ${{ matrix.python-version }}
           cache: "pip"
 
+      - name: Install CPU-only PyTorch (Linux)
+        if: contains(matrix.platform, 'ubuntu') || contains(matrix.platform, 'namespace')
+        run: |
+          pip install torch torchaudio --index-url https://download.pytorch.org/whl/cpu
+
       - name: Install Python dependencies
         run: |
           python -m pip install --upgrade pip
@@ -66,12 +67,6 @@ jobs:
         run: |
           pip install -r backend/requirements-mlx.txt
 
-      # - name: Install PyTorch with CUDA (Windows only)
-      #   if: matrix.platform == 'windows-latest'
-      #   run: |
-      #     pip install torch --index-url https://download.pytorch.org/whl/cu121 --force-reinstall --no-deps
-      #     pip install torchvision torchaudio --index-url https://download.pytorch.org/whl/cu121
-
       - name: Build Python server (Linux/macOS)
         if: matrix.platform != 'windows-latest'
         run: |
@@ -151,10 +146,70 @@ jobs:
             - **macOS (Apple Silicon)**: Download the `aarch64.dmg` file - uses MLX for fast native inference
             - **macOS (Intel)**: Download the `x64.dmg` file - uses PyTorch
             - **Windows**: Download the `.msi` installer
-            - **Linux**: Download the `.AppImage` or `.deb` package
+            - **Linux**: Compile from source (see README)
 
             The app includes automatic updates - future updates will be installed automatically.
           releaseDraft: true
           prerelease: false
           args: ${{ matrix.args }}
           includeUpdaterJson: true
+
+  build-cuda-windows:
+    runs-on: windows-latest
+    permissions:
+      contents: write
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+          cache: "pip"
+
+      - name: Install Python dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install pyinstaller
+          pip install -r backend/requirements.txt
+
+      - name: Install PyTorch with CUDA 12.1
+        run: |
+          pip install torch --index-url https://download.pytorch.org/whl/cu121 --force-reinstall --no-deps
+          pip install torchaudio --index-url https://download.pytorch.org/whl/cu121
+
+      - name: Verify CUDA support in torch
+        run: |
+          python -c "import torch; print(f'CUDA available in build: {torch.cuda.is_available()}'); print(f'CUDA version: {torch.version.cuda}')"
+
+      - name: Build CUDA server binary
+        shell: bash
+        working-directory: backend
+        run: python build_binary.py --cuda
+
+      - name: Split binary for GitHub Releases
+        shell: bash
+        run: |
+          python scripts/split_binary.py \
+            backend/dist/voicebox-server-cuda.exe \
+            --output release-assets/
+
+      - name: Upload split parts to GitHub Release
+        if: startsWith(github.ref, 'refs/tags/')
+        uses: softprops/action-gh-release@v1
+        with:
+          files: |
+            release-assets/voicebox-server-cuda.part*.exe
+            release-assets/voicebox-server-cuda.sha256
+            release-assets/voicebox-server-cuda.manifest
+          draft: true
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Upload binary as workflow artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: voicebox-server-cuda-windows
+          path: backend/dist/voicebox-server-cuda.exe
+          retention-days: 7

.gitignore

@@ -35,10 +35,7 @@ target/
 Thumbs.db
 
 # Data (user-generated)
-data/profiles/*
+data/
-data/generations/*
-data/projects/*
-data/voicebox.db
 !data/.gitkeep
 
 # Logs

README.md

@@ -85,7 +85,7 @@ Voicebox is available now for macOS and Windows.
 | Windows (MSI) | [Latest Windows MSI](https://github.com/jamiepine/voicebox/releases/latest) |
 | Windows (Setup) | [Latest Windows Setup](https://github.com/jamiepine/voicebox/releases/latest) |
 
-> **Linux builds coming soon** — Currently blocked by GitHub runner disk space limitations.
+> **Linux** — Pre-built binaries are not yet available. Linux users can compile from source, see [Development](#development) below.
 
 ---
 

app/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@voicebox/app",
-  "version": "0.1.13",
+  "version": "0.2.0",
   "private": true,
   "type": "module",
   "scripts": {

app/src/components/AudioPlayer/AudioPlayer.tsx

@@ -157,8 +157,21 @@ export function AudioPlayer() {
       const wavesurfer = wavesurferRef.current;
       if (!wavesurfer) return;
 
-      // Update store when time changes
+      // Update store when time changes, stop if past duration
       wavesurfer.on('timeupdate', (time) => {
+        const dur = usePlayerStore.getState().duration;
+        if (dur > 0 && time >= dur) {
+          setCurrentTime(dur);
+          const loop = usePlayerStore.getState().isLooping;
+          if (loop) {
+            wavesurfer.seekTo(0);
+            wavesurfer.play();
+          } else {
+            wavesurfer.pause();
+            setIsPlaying(false);
+          }
+          return;
+        }
         setCurrentTime(time);
       });
 

app/src/components/Effects/EffectsChainEditor.tsx

@@ -0,0 +1,377 @@
+import {
+  closestCenter,
+  DndContext,
+  type DragEndEvent,
+  KeyboardSensor,
+  PointerSensor,
+  useSensor,
+  useSensors,
+} from '@dnd-kit/core';
+import {
+  arrayMove,
+  SortableContext,
+  sortableKeyboardCoordinates,
+  useSortable,
+  verticalListSortingStrategy,
+} from '@dnd-kit/sortable';
+import { CSS } from '@dnd-kit/utilities';
+import { useQuery } from '@tanstack/react-query';
+import { ChevronDown, ChevronRight, GripVertical, Plus, Power, Trash2 } from 'lucide-react';
+import { useCallback, useMemo, useRef, useState } from 'react';
+import { Button } from '@/components/ui/button';
+import { Label } from '@/components/ui/label';
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from '@/components/ui/select';
+import { Slider } from '@/components/ui/slider';
+import { apiClient } from '@/lib/api/client';
+import type { AvailableEffect, EffectConfig, EffectPresetResponse } from '@/lib/api/types';
+import { cn } from '@/lib/utils/cn';
+
+// Each effect in the chain gets a stable ID for dnd-kit
+interface EffectWithId extends EffectConfig {
+  _id: string;
+}
+
+let nextId = 0;
+function makeId() {
+  return `fx-${++nextId}`;
+}
+
+interface EffectsChainEditorProps {
+  value: EffectConfig[];
+  onChange: (chain: EffectConfig[]) => void;
+  compact?: boolean;
+  showPresets?: boolean;
+}
+
+export function EffectsChainEditor({
+  value,
+  onChange,
+  compact = false,
+  showPresets = true,
+}: EffectsChainEditorProps) {
+  const [expandedId, setExpandedId] = useState<string | null>(null);
+
+  // Maintain stable IDs for each effect across renders.
+  // We use a ref to map value items to IDs, rebuilding when length changes.
+  const idsRef = useRef<string[]>([]);
+  const items: EffectWithId[] = useMemo(() => {
+    // Grow ID array if effects were added
+    while (idsRef.current.length < value.length) {
+      idsRef.current.push(makeId());
+    }
+    // Shrink if effects were removed
+    if (idsRef.current.length > value.length) {
+      idsRef.current = idsRef.current.slice(0, value.length);
+    }
+    return value.map((e, i) => ({ ...e, _id: idsRef.current[i] }));
+  }, [value]);
+
+  const sensors = useSensors(
+    useSensor(PointerSensor, { activationConstraint: { distance: 5 } }),
+    useSensor(KeyboardSensor, { coordinateGetter: sortableKeyboardCoordinates }),
+  );
+
+  const { data: availableEffects } = useQuery({
+    queryKey: ['available-effects'],
+    queryFn: () => apiClient.getAvailableEffects(),
+    staleTime: Infinity,
+  });
+
+  const { data: presets } = useQuery({
+    queryKey: ['effect-presets'],
+    queryFn: () => apiClient.listEffectPresets(),
+    staleTime: 30_000,
+  });
+
+  const effectsMap = useMemo(() => {
+    const m = new Map<string, AvailableEffect>();
+    if (availableEffects) {
+      for (const e of availableEffects.effects) {
+        m.set(e.type, e);
+      }
+    }
+    return m;
+  }, [availableEffects]);
+
+  function addEffect(type: string) {
+    const def = effectsMap.get(type);
+    if (!def) return;
+    const params: Record<string, number> = {};
+    for (const [key, p] of Object.entries(def.params)) {
+      params[key] = p.default;
+    }
+    const newEffect: EffectConfig = { type, enabled: true, params };
+    const newId = makeId();
+    idsRef.current = [...idsRef.current, newId];
+    onChange([...value, newEffect]);
+    setExpandedId(newId);
+  }
+
+  const removeEffect = useCallback(
+    (index: number) => {
+      const removedId = idsRef.current[index];
+      idsRef.current = idsRef.current.filter((_, i) => i !== index);
+      onChange(value.filter((_, i) => i !== index));
+      if (expandedId === removedId) setExpandedId(null);
+    },
+    [value, onChange, expandedId],
+  );
+
+  const toggleEnabled = useCallback(
+    (index: number) => {
+      onChange(value.map((e, i) => (i === index ? { ...e, enabled: !e.enabled } : e)));
+    },
+    [value, onChange],
+  );
+
+  const updateParam = useCallback(
+    (index: number, paramName: string, paramValue: number) => {
+      onChange(
+        value.map((e, i) =>
+          i === index ? { ...e, params: { ...e.params, [paramName]: paramValue } } : e,
+        ),
+      );
+    },
+    [value, onChange],
+  );
+
+  function loadPreset(preset: EffectPresetResponse) {
+    idsRef.current = preset.effects_chain.map(() => makeId());
+    onChange(preset.effects_chain);
+    setExpandedId(null);
+  }
+
+  function clearAll() {
+    idsRef.current = [];
+    onChange([]);
+    setExpandedId(null);
+  }
+
+  function handleDragEnd(event: DragEndEvent) {
+    const { active, over } = event;
+    if (!over || active.id === over.id) return;
+
+    const oldIndex = idsRef.current.indexOf(active.id as string);
+    const newIndex = idsRef.current.indexOf(over.id as string);
+    if (oldIndex === -1 || newIndex === -1) return;
+
+    idsRef.current = arrayMove(idsRef.current, oldIndex, newIndex);
+    onChange(arrayMove([...value], oldIndex, newIndex));
+  }
+
+  return (
+    <div className={cn('space-y-2', compact && 'text-sm')}>
+      {/* Preset selector row */}
+      {showPresets && (
+        <div className="flex items-center gap-2">
+          <Select
+            onValueChange={(id) => {
+              const preset = presets?.find((p) => p.id === id);
+              if (preset) loadPreset(preset);
+            }}
+          >
+            <SelectTrigger className="h-8 flex-1 text-xs focus:ring-0 focus:ring-offset-0">
+              <SelectValue placeholder="Load preset..." />
+            </SelectTrigger>
+            <SelectContent>
+              {presets?.map((p) => (
+                <SelectItem key={p.id} value={p.id}>
+                  {p.name}
+                  {p.description && (
+                    <span className="ml-1 text-muted-foreground">- {p.description}</span>
+                  )}
+                </SelectItem>
+              ))}
+            </SelectContent>
+          </Select>
+
+          {value.length > 0 && (
+            <Button
+              variant="ghost"
+              size="sm"
+              className="h-8 px-2 text-xs text-muted-foreground"
+              onClick={clearAll}
+            >
+              Clear
+            </Button>
+          )}
+        </div>
+      )}
+
+      {/* Sortable effects chain */}
+      <DndContext sensors={sensors} collisionDetection={closestCenter} onDragEnd={handleDragEnd}>
+        <SortableContext items={items.map((i) => i._id)} strategy={verticalListSortingStrategy}>
+          {items.map((effect, index) => (
+            <SortableEffectItem
+              key={effect._id}
+              id={effect._id}
+              effect={effect}
+              index={index}
+              effectDef={effectsMap.get(effect.type)}
+              isExpanded={expandedId === effect._id}
+              onToggleExpand={() => setExpandedId(expandedId === effect._id ? null : effect._id)}
+              onRemove={() => removeEffect(index)}
+              onToggleEnabled={() => toggleEnabled(index)}
+              onUpdateParam={(paramName, paramValue) => updateParam(index, paramName, paramValue)}
+            />
+          ))}
+        </SortableContext>
+      </DndContext>
+
+      {/* Add effect */}
+      {availableEffects && (
+        <Select onValueChange={addEffect}>
+          <SelectTrigger className="h-8 border-dashed text-xs text-muted-foreground focus:ring-0 focus:ring-offset-0">
+            <Plus className="mr-1 h-3.5 w-3.5" />
+            <SelectValue placeholder="Add effect..." />
+          </SelectTrigger>
+          <SelectContent>
+            {availableEffects.effects.map((e) => (
+              <SelectItem key={e.type} value={e.type}>
+                {e.label}
+              </SelectItem>
+            ))}
+          </SelectContent>
+        </Select>
+      )}
+    </div>
+  );
+}
+
+// ---------------------------------------------------------------------------
+// Sortable effect item
+// ---------------------------------------------------------------------------
+
+interface SortableEffectItemProps {
+  id: string;
+  effect: EffectConfig;
+  index: number;
+  effectDef?: AvailableEffect;
+  isExpanded: boolean;
+  onToggleExpand: () => void;
+  onRemove: () => void;
+  onToggleEnabled: () => void;
+  onUpdateParam: (paramName: string, paramValue: number) => void;
+}
+
+function SortableEffectItem({
+  id,
+  effect,
+  effectDef,
+  isExpanded,
+  onToggleExpand,
+  onRemove,
+  onToggleEnabled,
+  onUpdateParam,
+}: SortableEffectItemProps) {
+  const { attributes, listeners, setNodeRef, transform, transition, isDragging } = useSortable({
+    id,
+  });
+
+  const style = {
+    transform: CSS.Transform.toString(transform),
+    transition,
+    zIndex: isDragging ? 10 : undefined,
+  };
+
+  const label = effectDef?.label ?? effect.type;
+
+  return (
+    <div
+      ref={setNodeRef}
+      style={style}
+      className={cn(
+        'rounded-md border',
+        effect.enabled ? 'border-border bg-card' : 'border-border/50 bg-muted/30',
+        isDragging && 'opacity-80 shadow-lg',
+      )}
+    >
+      {/* Header */}
+      <div className="flex items-center gap-1 px-2 py-1.5">
+        <button
+          type="button"
+          className="p-0.5 text-muted-foreground hover:text-foreground"
+          onClick={onToggleExpand}
+        >
+          {isExpanded ? (
+            <ChevronDown className="h-3.5 w-3.5" />
+          ) : (
+            <ChevronRight className="h-3.5 w-3.5" />
+          )}
+        </button>
+
+        <button
+          type="button"
+          className="p-0.5 text-muted-foreground/50 hover:text-muted-foreground cursor-grab active:cursor-grabbing touch-none"
+          {...attributes}
+          {...listeners}
+        >
+          <GripVertical className="h-3.5 w-3.5" />
+        </button>
+
+        <span
+          className={cn('flex-1 text-xs font-medium', !effect.enabled && 'text-muted-foreground')}
+        >
+          {label}
+        </span>
+
+        <button
+          type="button"
+          className={cn(
+            'p-0.5 transition-colors',
+            effect.enabled ? 'text-primary' : 'text-muted-foreground hover:text-foreground',
+          )}
+          onClick={onToggleEnabled}
+          title={effect.enabled ? 'Disable' : 'Enable'}
+        >
+          <Power className="h-3.5 w-3.5" />
+        </button>
+
+        <button
+          type="button"
+          className="p-0.5 text-muted-foreground hover:text-destructive"
+          onClick={onRemove}
+          title="Remove"
+        >
+          <Trash2 className="h-3.5 w-3.5" />
+        </button>
+      </div>
+
+      {/* Params */}
+      {isExpanded && effectDef && (
+        <div className="space-y-3 border-t px-3 py-2.5">
+          {Object.entries(effectDef.params).map(([paramName, paramDef]) => {
+            const currentValue = effect.params[paramName] ?? paramDef.default;
+            return (
+              <div key={paramName} className="space-y-1">
+                <div className="flex items-center justify-between">
+                  <Label className="text-[11px] text-muted-foreground">
+                    {paramDef.description}
+                  </Label>
+                  <span className="text-[11px] font-mono tabular-nums text-foreground">
+                    {currentValue.toFixed(
+                      paramDef.step < 1 ? Math.max(1, -Math.floor(Math.log10(paramDef.step))) : 0,
+                    )}
+                  </span>
+                </div>
+                <Slider
+                  min={paramDef.min}
+                  max={paramDef.max}
+                  step={paramDef.step}
+                  value={[currentValue]}
+                  onValueChange={([v]) => onUpdateParam(paramName, v)}
+                />
+              </div>
+            );
+          })}
+        </div>
+      )}
+    </div>
+  );
+}

app/src/components/Effects/GenerationPicker.tsx

@@ -0,0 +1,103 @@
+import { ChevronDown, Search } from 'lucide-react';
+import { useMemo, useState } from 'react';
+import { Button } from '@/components/ui/button';
+import { Input } from '@/components/ui/input';
+import { Popover, PopoverContent, PopoverTrigger } from '@/components/ui/popover';
+import type { HistoryResponse } from '@/lib/api/types';
+import { useHistory } from '@/lib/hooks/useHistory';
+import { cn } from '@/lib/utils/cn';
+
+interface GenerationPickerProps {
+  selectedId: string | null;
+  onSelect: (generation: HistoryResponse) => void;
+  className?: string;
+}
+
+export function GenerationPicker({ selectedId, onSelect, className }: GenerationPickerProps) {
+  const [open, setOpen] = useState(false);
+  const [searchQuery, setSearchQuery] = useState('');
+
+  const { data: historyData } = useHistory({ limit: 50 });
+
+  const completedGenerations = useMemo(() => {
+    if (!historyData?.items) return [];
+    return historyData.items.filter((gen) => gen.status === 'completed');
+  }, [historyData]);
+
+  const filtered = useMemo(() => {
+    if (!searchQuery) return completedGenerations;
+    const q = searchQuery.toLowerCase();
+    return completedGenerations.filter(
+      (gen) => gen.text.toLowerCase().includes(q) || gen.profile_name.toLowerCase().includes(q),
+    );
+  }, [completedGenerations, searchQuery]);
+
+  const selectedGeneration = completedGenerations.find((g) => g.id === selectedId);
+
+  return (
+    <Popover open={open} onOpenChange={setOpen}>
+      <PopoverTrigger asChild>
+        <Button
+          variant="outline"
+          size="sm"
+          className={cn('h-8 justify-between gap-2 text-xs font-normal', className)}
+        >
+          {selectedGeneration ? (
+            <span className="truncate">
+              <span className="font-medium">{selectedGeneration.profile_name}</span>
+              <span className="text-muted-foreground ml-1.5">
+                {selectedGeneration.text.length > 30
+                  ? `${selectedGeneration.text.substring(0, 30)}...`
+                  : selectedGeneration.text}
+              </span>
+            </span>
+          ) : (
+            <span className="text-muted-foreground">Select a generation...</span>
+          )}
+          <ChevronDown className="h-3.5 w-3.5 shrink-0 opacity-50" />
+        </Button>
+      </PopoverTrigger>
+      <PopoverContent className="w-80 p-0" align="start">
+        <div className="p-2 border-b">
+          <div className="relative">
+            <Search className="absolute left-2 top-1/2 -translate-y-1/2 h-3.5 w-3.5 text-muted-foreground" />
+            <Input
+              placeholder="Search by voice or text..."
+              value={searchQuery}
+              onChange={(e) => setSearchQuery(e.target.value)}
+              className="h-8 pl-7 text-xs"
+            />
+          </div>
+        </div>
+        <div className="max-h-60 overflow-y-auto">
+          {filtered.length === 0 ? (
+            <div className="p-4 text-center text-xs text-muted-foreground">
+              No generations found
+            </div>
+          ) : (
+            filtered.map((gen) => (
+              <button
+                key={gen.id}
+                type="button"
+                className={cn(
+                  'w-full text-left px-3 py-2 hover:bg-muted/50 transition-colors border-b border-border/30 last:border-0',
+                  gen.id === selectedId && 'bg-accent/10',
+                )}
+                onClick={() => {
+                  onSelect(gen);
+                  setOpen(false);
+                  setSearchQuery('');
+                }}
+              >
+                <div className="font-medium text-sm">{gen.profile_name}</div>
+                <div className="text-xs text-muted-foreground truncate">
+                  {gen.text.length > 60 ? `${gen.text.substring(0, 60)}...` : gen.text}
+                </div>
+              </button>
+            ))
+          )}
+        </div>
+      </PopoverContent>
+    </Popover>
+  );
+}

app/src/components/EffectsTab/EffectsDetail.tsx

@@ -0,0 +1,332 @@
+import { useQuery, useQueryClient } from '@tanstack/react-query';
+import { Loader2, Play, Save, Trash2, Wand2 } from 'lucide-react';
+import { useEffect, useRef, useState } from 'react';
+
+import { EffectsChainEditor } from '@/components/Effects/EffectsChainEditor';
+import { GenerationPicker } from '@/components/Effects/GenerationPicker';
+import { Button } from '@/components/ui/button';
+import { Input } from '@/components/ui/input';
+import { Label } from '@/components/ui/label';
+import { Separator } from '@/components/ui/separator';
+import { Textarea } from '@/components/ui/textarea';
+import { useToast } from '@/components/ui/use-toast';
+import { apiClient } from '@/lib/api/client';
+import type { HistoryResponse } from '@/lib/api/types';
+import { useHistory } from '@/lib/hooks/useHistory';
+import { useEffectsStore } from '@/stores/effectsStore';
+import { usePlayerStore } from '@/stores/playerStore';
+
+export function EffectsDetail() {
+  const selectedPresetId = useEffectsStore((s) => s.selectedPresetId);
+  const isCreatingNew = useEffectsStore((s) => s.isCreatingNew);
+  const workingChain = useEffectsStore((s) => s.workingChain);
+  const setWorkingChain = useEffectsStore((s) => s.setWorkingChain);
+  const setSelectedPresetId = useEffectsStore((s) => s.setSelectedPresetId);
+  const setIsCreatingNew = useEffectsStore((s) => s.setIsCreatingNew);
+
+  const [name, setName] = useState('');
+  const [description, setDescription] = useState('');
+  const [saving, setSaving] = useState(false);
+  const [deleting, setDeleting] = useState(false);
+
+  // Preview state
+  const [previewGenId, setPreviewGenId] = useState<string | null>(null);
+  const [previewLoading, setPreviewLoading] = useState(false);
+  const blobUrlRef = useRef<string | null>(null);
+  const setAudioWithAutoPlay = usePlayerStore((s) => s.setAudioWithAutoPlay);
+
+  const { toast } = useToast();
+  const queryClient = useQueryClient();
+
+  // Auto-select the most recent generation as preview source
+  const { data: historyData } = useHistory({ limit: 1 });
+  useEffect(() => {
+    if (!previewGenId && historyData?.items?.length) {
+      const first = historyData.items.find((g) => g.status === 'completed');
+      if (first) setPreviewGenId(first.id);
+    }
+  }, [historyData, previewGenId]);
+
+  const { data: preset } = useQuery({
+    queryKey: ['effect-preset', selectedPresetId],
+    queryFn: () =>
+      selectedPresetId
+        ? apiClient
+            .listEffectPresets()
+            .then((all) => all.find((p) => p.id === selectedPresetId) ?? null)
+        : null,
+    enabled: !!selectedPresetId,
+    staleTime: 30_000,
+  });
+
+  // Sync name/description when selecting a preset
+  useEffect(() => {
+    if (preset) {
+      setName(preset.name);
+      setDescription(preset.description ?? '');
+    } else if (isCreatingNew) {
+      setName('');
+      setDescription('');
+    }
+  }, [preset, isCreatingNew]);
+
+  // Cleanup blob URL on unmount
+  useEffect(() => {
+    return () => {
+      if (blobUrlRef.current) {
+        URL.revokeObjectURL(blobUrlRef.current);
+        blobUrlRef.current = null;
+      }
+    };
+  }, []);
+
+  const isEditing = !!selectedPresetId || isCreatingNew;
+  const isBuiltIn = preset?.is_builtin ?? false;
+
+  async function handlePreview() {
+    if (!previewGenId || workingChain.length === 0) return;
+
+    setPreviewLoading(true);
+    try {
+      const blob = await apiClient.previewEffects(previewGenId, workingChain);
+
+      // Revoke old blob URL
+      if (blobUrlRef.current) {
+        URL.revokeObjectURL(blobUrlRef.current);
+      }
+
+      const url = URL.createObjectURL(blob);
+      blobUrlRef.current = url;
+
+      // Play through the main audio player
+      setAudioWithAutoPlay(url, `preview-${Date.now()}`, null, 'Effects Preview');
+    } catch (error) {
+      toast({
+        title: 'Preview failed',
+        description: error instanceof Error ? error.message : 'Unknown error',
+        variant: 'destructive',
+      });
+    } finally {
+      setPreviewLoading(false);
+    }
+  }
+
+  function handleSelectGeneration(gen: HistoryResponse) {
+    setPreviewGenId(gen.id);
+  }
+
+  async function handleSaveNew() {
+    if (!name.trim()) {
+      toast({ title: 'Name required', variant: 'destructive' });
+      return;
+    }
+    setSaving(true);
+    try {
+      const created = await apiClient.createEffectPreset({
+        name: name.trim(),
+        description: description.trim() || undefined,
+        effects_chain: workingChain,
+      });
+      queryClient.invalidateQueries({ queryKey: ['effect-presets'] });
+      setIsCreatingNew(false);
+      setSelectedPresetId(created.id);
+      toast({ title: 'Preset saved', description: `"${created.name}" has been created.` });
+    } catch (error) {
+      toast({
+        title: 'Failed to save',
+        description: error instanceof Error ? error.message : 'Unknown error',
+        variant: 'destructive',
+      });
+    } finally {
+      setSaving(false);
+    }
+  }
+
+  async function handleSaveExisting() {
+    if (!selectedPresetId || !name.trim()) return;
+    setSaving(true);
+    try {
+      await apiClient.updateEffectPreset(selectedPresetId, {
+        name: name.trim(),
+        description: description.trim() || undefined,
+        effects_chain: workingChain,
+      });
+      queryClient.invalidateQueries({ queryKey: ['effect-presets'] });
+      queryClient.invalidateQueries({ queryKey: ['effect-preset', selectedPresetId] });
+      toast({ title: 'Preset updated' });
+    } catch (error) {
+      toast({
+        title: 'Failed to save',
+        description: error instanceof Error ? error.message : 'Unknown error',
+        variant: 'destructive',
+      });
+    } finally {
+      setSaving(false);
+    }
+  }
+
+  async function handleSaveAsNew() {
+    await handleSaveNew();
+  }
+
+  async function handleDelete() {
+    if (!selectedPresetId) return;
+    setDeleting(true);
+    try {
+      await apiClient.deleteEffectPreset(selectedPresetId);
+      queryClient.invalidateQueries({ queryKey: ['effect-presets'] });
+      setSelectedPresetId(null);
+      setWorkingChain([]);
+      toast({ title: 'Preset deleted' });
+    } catch (error) {
+      toast({
+        title: 'Failed to delete',
+        description: error instanceof Error ? error.message : 'Unknown error',
+        variant: 'destructive',
+      });
+    } finally {
+      setDeleting(false);
+    }
+  }
+
+  if (!isEditing) {
+    return (
+      <div className="flex-1 flex items-center justify-center text-muted-foreground">
+        <div className="text-center space-y-2">
+          <Wand2 className="h-10 w-10 mx-auto opacity-30" />
+          <p className="text-sm">Select a preset or create a new one</p>
+        </div>
+      </div>
+    );
+  }
+
+  return (
+    <div className="flex flex-col h-full min-h-0">
+      {/* Header */}
+      <div className="flex items-center justify-between mb-4">
+        <h2 className="text-lg font-semibold">
+          {isCreatingNew ? 'New Preset' : isBuiltIn ? preset?.name : 'Edit Preset'}
+        </h2>
+        <div className="flex items-center gap-2">
+          {!isBuiltIn && !isCreatingNew && (
+            <>
+              <Button
+                variant="ghost"
+                size="sm"
+                className="h-8 text-destructive hover:text-destructive gap-1.5"
+                onClick={handleDelete}
+                disabled={deleting}
+              >
+                <Trash2 className="h-3.5 w-3.5" />
+                {deleting ? 'Deleting...' : 'Delete'}
+              </Button>
+              <Button
+                size="sm"
+                className="h-8 gap-1.5"
+                onClick={handleSaveExisting}
+                disabled={saving || workingChain.length === 0}
+              >
+                <Save className="h-3.5 w-3.5" />
+                {saving ? 'Saving...' : 'Save'}
+              </Button>
+            </>
+          )}
+          {isCreatingNew && (
+            <Button
+              size="sm"
+              className="h-8 gap-1.5"
+              onClick={handleSaveNew}
+              disabled={saving || workingChain.length === 0}
+            >
+              <Save className="h-3.5 w-3.5" />
+              {saving ? 'Saving...' : 'Save Preset'}
+            </Button>
+          )}
+          {isBuiltIn && (
+            <Button
+              size="sm"
+              variant="outline"
+              className="h-8 gap-1.5"
+              onClick={handleSaveAsNew}
+              disabled={saving}
+            >
+              <Save className="h-3.5 w-3.5" />
+              {saving ? 'Saving...' : 'Save as Custom'}
+            </Button>
+          )}
+        </div>
+      </div>
+
+      {/* Scrollable content */}
+      <div className="flex-1 min-h-0 overflow-y-auto space-y-5 pr-1">
+        {/* Name & description */}
+        {(isCreatingNew || !isBuiltIn) && (
+          <div className="space-y-3">
+            <div className="space-y-1.5">
+              <Label className="text-xs">Name</Label>
+              <Input
+                value={name}
+                onChange={(e) => setName(e.target.value)}
+                placeholder="My preset..."
+                className="h-9"
+              />
+            </div>
+            <div className="space-y-1.5">
+              <Label className="text-xs">Description</Label>
+              <Textarea
+                value={description}
+                onChange={(e) => setDescription(e.target.value)}
+                placeholder="Describe what this preset does..."
+                className="min-h-[60px] resize-none"
+              />
+            </div>
+          </div>
+        )}
+
+        {/* Built-in description (read-only) */}
+        {isBuiltIn && preset?.description && (
+          <p className="text-sm text-muted-foreground">{preset.description}</p>
+        )}
+
+        {/* Effects chain editor */}
+        <EffectsChainEditor value={workingChain} onChange={setWorkingChain} showPresets={false} />
+
+        <Separator />
+
+        {/* Preview section */}
+        <div className="space-y-3">
+          <Label className="text-xs">Preview</Label>
+          <div className="flex items-center gap-2">
+            <GenerationPicker
+              selectedId={previewGenId}
+              onSelect={handleSelectGeneration}
+              className="flex-1"
+            />
+            <Button
+              variant="outline"
+              size="sm"
+              className="h-8 gap-1.5 shrink-0"
+              onClick={handlePreview}
+              disabled={!previewGenId || workingChain.length === 0 || previewLoading}
+            >
+              {previewLoading ? (
+                <>
+                  <Loader2 className="h-3.5 w-3.5 animate-spin" />
+                  Processing...
+                </>
+              ) : (
+                <>
+                  <Play className="h-3.5 w-3.5" />
+                  Preview
+                </>
+              )}
+            </Button>
+          </div>
+          <p className="text-[11px] text-muted-foreground">
+            Preview applies effects to the clean version without saving.
+          </p>
+        </div>
+      </div>
+    </div>
+  );
+}

app/src/components/EffectsTab/EffectsList.tsx

@@ -0,0 +1,165 @@
+import { useQuery } from '@tanstack/react-query';
+import { Loader2, Plus, Sparkles, Wand2 } from 'lucide-react';
+import { Button } from '@/components/ui/button';
+import { apiClient } from '@/lib/api/client';
+import type { EffectPresetResponse } from '@/lib/api/types';
+import { cn } from '@/lib/utils/cn';
+import { useEffectsStore } from '@/stores/effectsStore';
+
+export function EffectsList() {
+  const selectedPresetId = useEffectsStore((s) => s.selectedPresetId);
+  const setSelectedPresetId = useEffectsStore((s) => s.setSelectedPresetId);
+  const setWorkingChain = useEffectsStore((s) => s.setWorkingChain);
+  const setIsCreatingNew = useEffectsStore((s) => s.setIsCreatingNew);
+  const isCreatingNew = useEffectsStore((s) => s.isCreatingNew);
+
+  const { data: presets, isLoading } = useQuery({
+    queryKey: ['effect-presets'],
+    queryFn: () => apiClient.listEffectPresets(),
+    staleTime: 30_000,
+  });
+
+  const builtIn = presets?.filter((p) => p.is_builtin) ?? [];
+  const userPresets = presets?.filter((p) => !p.is_builtin) ?? [];
+
+  function handleSelect(preset: EffectPresetResponse) {
+    setSelectedPresetId(preset.id);
+    setWorkingChain(preset.effects_chain);
+  }
+
+  function handleCreateNew() {
+    setIsCreatingNew(true);
+    setWorkingChain([]);
+  }
+
+  if (isLoading) {
+    return (
+      <div className="flex items-center justify-center h-full">
+        <Loader2 className="h-6 w-6 animate-spin text-muted-foreground" />
+      </div>
+    );
+  }
+
+  return (
+    <div className="flex flex-col h-full min-h-0">
+      {/* Header */}
+      <div className="flex items-center justify-between mb-4">
+        <h2 className="text-lg font-semibold">Effects</h2>
+        <Button variant="outline" size="sm" className="h-8 gap-1.5" onClick={handleCreateNew}>
+          <Plus className="h-3.5 w-3.5" />
+          New Preset
+        </Button>
+      </div>
+
+      {/* Scrollable list */}
+      <div className="flex-1 min-h-0 overflow-y-auto space-y-4">
+        {/* Built-in presets */}
+        {builtIn.length > 0 && (
+          <div>
+            <div className="text-[11px] text-muted-foreground font-medium uppercase tracking-wider mb-2 px-1">
+              Built-in
+            </div>
+            <div className="space-y-1.5">
+              {builtIn.map((preset) => (
+                <PresetCard
+                  key={preset.id}
+                  preset={preset}
+                  isSelected={selectedPresetId === preset.id && !isCreatingNew}
+                  onSelect={() => handleSelect(preset)}
+                />
+              ))}
+            </div>
+          </div>
+        )}
+
+        {/* User presets */}
+        {userPresets.length > 0 && (
+          <div>
+            <div className="text-[11px] text-muted-foreground font-medium uppercase tracking-wider mb-2 px-1">
+              Custom
+            </div>
+            <div className="space-y-1.5">
+              {userPresets.map((preset) => (
+                <PresetCard
+                  key={preset.id}
+                  preset={preset}
+                  isSelected={selectedPresetId === preset.id && !isCreatingNew}
+                  onSelect={() => handleSelect(preset)}
+                />
+              ))}
+            </div>
+          </div>
+        )}
+
+        {/* New preset placeholder */}
+        {isCreatingNew && (
+          <div>
+            <div className="text-[11px] text-muted-foreground font-medium uppercase tracking-wider mb-2 px-1">
+              New
+            </div>
+            <div className="rounded-xl border-2 border-accent/40 bg-accent/5 p-3">
+              <div className="flex items-center gap-2">
+                <Sparkles className="h-4 w-4 text-accent" />
+                <span className="text-sm font-medium">Unsaved Preset</span>
+              </div>
+              <p className="text-xs text-muted-foreground mt-1">
+                Configure effects in the panel on the right.
+              </p>
+            </div>
+          </div>
+        )}
+      </div>
+    </div>
+  );
+}
+
+function PresetCard({
+  preset,
+  isSelected,
+  onSelect,
+}: {
+  preset: EffectPresetResponse;
+  isSelected: boolean;
+  onSelect: () => void;
+}) {
+  const effectCount = preset.effects_chain.length;
+
+  return (
+    <button
+      type="button"
+      className={cn(
+        'w-full text-left rounded-xl border p-3 h-[88px] transition-all duration-150',
+        isSelected
+          ? 'border-accent/50 bg-accent/10'
+          : 'border-border bg-card hover:bg-muted/50 hover:border-border',
+      )}
+      onClick={onSelect}
+    >
+      <div className="flex items-center gap-2">
+        <Wand2
+          className={cn('h-4 w-4 shrink-0', isSelected ? 'text-accent' : 'text-muted-foreground')}
+        />
+        <span className="text-sm font-medium truncate">{preset.name}</span>
+        {preset.is_builtin && (
+          <span className="text-[10px] bg-muted text-muted-foreground px-1.5 py-0.5 rounded-full shrink-0">
+            built-in
+          </span>
+        )}
+      </div>
+      <p className="text-xs text-muted-foreground mt-1 line-clamp-1 pl-6">
+        {preset.description || 'No description'}
+      </p>
+      <div className="flex items-center gap-2 mt-1.5 pl-6">
+        <span className="text-[10px] text-muted-foreground">
+          {effectCount} effect{effectCount !== 1 ? 's' : ''}
+        </span>
+        <span className="text-[10px] text-muted-foreground/50">
+          {preset.effects_chain
+            .filter((e) => e.enabled)
+            .map((e) => e.type)
+            .join(' → ')}
+        </span>
+      </div>
+    </button>
+  );
+}

app/src/components/EffectsTab/EffectsTab.tsx

@@ -0,0 +1,20 @@
+import {EffectsDetail} from "./EffectsDetail";
+import {EffectsList} from "./EffectsList";
+
+export function EffectsTab() {
+	return (
+		<div className="flex flex-col h-full min-h-0 overflow-hidden">
+			<div className="flex-1 min-h-0 flex gap-6 overflow-hidden">
+				{/* Left - Presets list */}
+				<div className="w-full max-w-[360px] shrink-0 flex flex-col min-h-0">
+					<EffectsList />
+				</div>
+
+				{/* Right - Detail / editor */}
+				<div className="flex-1 min-h-0 flex flex-col">
+					<EffectsDetail />
+				</div>
+			</div>
+		</div>
+	);
+}

app/src/components/Generation/FloatingGenerateBox.tsx

@@ -2,6 +2,7 @@ import { useMatchRoute } from '@tanstack/react-router';
 import { AnimatePresence, motion } from 'framer-motion';
 import { Loader2, SlidersHorizontal, Sparkles } from 'lucide-react';
 import { useEffect, useRef, useState } from 'react';
+import { EffectsChainEditor } from '@/components/Effects/EffectsChainEditor';
 import { Button } from '@/components/ui/button';
 import { Form, FormControl, FormField, FormItem, FormMessage } from '@/components/ui/form';
 import {
@@ -12,6 +13,7 @@ import {
   SelectValue,
 } from '@/components/ui/select';
 import { Textarea } from '@/components/ui/textarea';
+import type { EffectConfig } from '@/lib/api/types';
 import { getLanguageOptionsForEngine, type LanguageCode } from '@/lib/constants/languages';
 import { useGenerationForm } from '@/lib/hooks/useGenerationForm';
 import { useProfile, useProfiles } from '@/lib/hooks/useProfiles';
@@ -37,6 +39,7 @@ export function FloatingGenerateBox({
   const { data: profiles } = useProfiles();
   const [isExpanded, setIsExpanded] = useState(false);
   const [isInstructMode, setIsInstructMode] = useState(false);
+  const [effectsChain, setEffectsChain] = useState<EffectConfig[]>([]);
   const containerRef = useRef<HTMLDivElement>(null);
   const textareaRef = useRef<HTMLTextAreaElement | null>(null);
   const matchRoute = useMatchRoute();
@@ -57,6 +60,7 @@ export function FloatingGenerateBox({
         addPendingStoryAdd(generationId, selectedStoryId);
       }
     },
+    getEffectsChain: () => (effectsChain.length > 0 ? effectsChain : undefined),
   });
 
   // Click away handler to collapse the box
@@ -355,6 +359,8 @@ export function FloatingGenerateBox({
                             'h-10 w-10 rounded-full transition-all duration-200',
                             isInstructMode
                               ? 'bg-accent text-accent-foreground border border-accent hover:bg-accent/90'
+                              : effectsChain.length > 0
+                                ? 'bg-accent/50 text-accent-foreground border border-accent/50 hover:bg-accent/70'
                                 : 'bg-card border border-border hover:bg-background/50',
                           )}
                           aria-label={
@@ -364,7 +370,7 @@ export function FloatingGenerateBox({
                           <SlidersHorizontal className="h-4 w-4" />
                         </Button>
                         <span className="pointer-events-none absolute bottom-full left-1/2 -translate-x-1/2 mb-2 whitespace-nowrap rounded-md bg-popover px-3 py-1.5 text-xs text-popover-foreground border border-border opacity-0 transition-opacity group-hover:opacity-100 z-[9999]">
-                          Fine tune instructions
+                          Fine tune instructions & effects
                         </span>
                       </div>
                     </motion.div>
@@ -373,6 +379,23 @@ export function FloatingGenerateBox({
               </div>
             </div>
 
+            {/* Effects chain editor panel - shown alongside instruct */}
+            <AnimatePresence>
+              {isExpanded && isInstructMode && (
+                <motion.div
+                  initial={{ height: 0, opacity: 0 }}
+                  animate={{ height: 'auto', opacity: 1 }}
+                  exit={{ height: 0, opacity: 0 }}
+                  transition={{ duration: 0.2 }}
+                  className="overflow-hidden mt-2"
+                >
+                  <div className="border-t border-border/50 pt-2 pb-1">
+                    <EffectsChainEditor value={effectsChain} onChange={setEffectsChain} compact />
+                  </div>
+                </motion.div>
+              )}
+            </AnimatePresence>
+
             <AnimatePresence>
               <motion.div
                 initial={{ height: 0, opacity: 0 }}

app/src/components/History/HistoryTable.tsx

@@ -1,15 +1,22 @@
 import { useQueryClient } from '@tanstack/react-query';
+import { AnimatePresence, motion } from 'framer-motion';
 import {
+  AlignCenter,
+  AudioLines,
+  AudioWaveform,
   Download,
   FileArchive,
   Loader2,
   MoreHorizontal,
   Play,
   RotateCcw,
+  Star,
   Trash2,
+  Wand2,
 } from 'lucide-react';
 import { useEffect, useRef, useState } from 'react';
 import Loader from 'react-loaders';
+import { EffectsChainEditor } from '@/components/Effects/EffectsChainEditor';
 import { Button } from '@/components/ui/button';
 import {
   Dialog,
@@ -25,10 +32,17 @@ import {
   DropdownMenuItem,
   DropdownMenuTrigger,
 } from '@/components/ui/dropdown-menu';
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from '@/components/ui/select';
 import { Textarea } from '@/components/ui/textarea';
 import { useToast } from '@/components/ui/use-toast';
 import { apiClient } from '@/lib/api/client';
-import type { HistoryResponse } from '@/lib/api/types';
+import type { EffectConfig, GenerationVersionResponse, HistoryResponse } from '@/lib/api/types';
 import { BOTTOM_SAFE_AREA_PADDING } from '@/lib/constants/ui';
 import {
   useDeleteGeneration,
@@ -60,6 +74,15 @@ export function HistoryTable() {
   const [generationToDelete, setGenerationToDelete] = useState<{ id: string; name: string } | null>(
     null,
   );
+  const [effectsDialogOpen, setEffectsDialogOpen] = useState(false);
+  const [effectsTargetId, setEffectsTargetId] = useState<string | null>(null);
+  const [effectsTargetVersions, setEffectsTargetVersions] = useState<GenerationVersionResponse[]>(
+    [],
+  );
+  const [effectsSourceVersionId, setEffectsSourceVersionId] = useState<string | null>(null);
+  const [effectsChain, setEffectsChain] = useState<EffectConfig[]>([]);
+  const [applyingEffects, setApplyingEffects] = useState(false);
+  const [expandedVersionsId, setExpandedVersionsId] = useState<string | null>(null);
   const limit = 20;
   const { toast } = useToast();
   const queryClient = useQueryClient();
@@ -215,6 +238,106 @@ export function HistoryTable() {
     }
   };
 
+  const handleRegenerate = async (generationId: string) => {
+    try {
+      await apiClient.regenerateGeneration(generationId);
+      addPendingGeneration(generationId);
+      queryClient.invalidateQueries({ queryKey: ['history'] });
+    } catch (error) {
+      toast({
+        title: 'Regenerate failed',
+        description: error instanceof Error ? error.message : 'Could not regenerate',
+        variant: 'destructive',
+      });
+    }
+  };
+
+  const handleToggleFavorite = async (generationId: string) => {
+    try {
+      await apiClient.toggleFavorite(generationId);
+      queryClient.invalidateQueries({ queryKey: ['history'] });
+    } catch (error) {
+      toast({
+        title: 'Failed to update favorite',
+        description: error instanceof Error ? error.message : 'Unknown error',
+        variant: 'destructive',
+      });
+    }
+  };
+
+  const handleApplyEffects = (generationId: string) => {
+    const gen = allHistory.find((g) => g.id === generationId);
+    const versions = gen?.versions ?? [];
+    setEffectsTargetId(generationId);
+    setEffectsTargetVersions(versions);
+    // Default to clean/original version (no effects chain)
+    const cleanVersion = versions.find((v) => !v.effects_chain || v.effects_chain.length === 0);
+    setEffectsSourceVersionId(cleanVersion?.id ?? null);
+    setEffectsChain([]);
+    setEffectsDialogOpen(true);
+  };
+
+  const handleApplyEffectsConfirm = async () => {
+    if (!effectsTargetId || effectsChain.length === 0) return;
+    setApplyingEffects(true);
+    try {
+      const newVersion = await apiClient.applyEffectsToGeneration(effectsTargetId, {
+        effects_chain: effectsChain,
+        source_version_id: effectsSourceVersionId ?? undefined,
+        set_as_default: true,
+      });
+      queryClient.invalidateQueries({ queryKey: ['history'] });
+
+      // If the player is currently on this generation, reload with the new version audio
+      if (currentAudioId === effectsTargetId) {
+        const gen = allHistory.find((g) => g.id === effectsTargetId);
+        if (gen) {
+          const versionUrl = apiClient.getVersionAudioUrl(newVersion.id);
+          setAudioWithAutoPlay(
+            versionUrl,
+            effectsTargetId,
+            gen.profile_id,
+            gen.text.substring(0, 50),
+          );
+        }
+      }
+
+      setEffectsDialogOpen(false);
+      toast({ title: 'Effects applied', description: 'A new version has been created.' });
+    } catch (error) {
+      toast({
+        title: 'Failed to apply effects',
+        description: error instanceof Error ? error.message : 'Unknown error',
+        variant: 'destructive',
+      });
+    } finally {
+      setApplyingEffects(false);
+    }
+  };
+
+  const handleSwitchVersion = async (generationId: string, versionId: string) => {
+    try {
+      await apiClient.setDefaultVersion(generationId, versionId);
+      queryClient.invalidateQueries({ queryKey: ['history'] });
+    } catch (error) {
+      toast({
+        title: 'Failed to switch version',
+        description: error instanceof Error ? error.message : 'Unknown error',
+        variant: 'destructive',
+      });
+    }
+  };
+
+  const handlePlayVersion = (
+    generationId: string,
+    versionId: string,
+    text: string,
+    profileId: string,
+  ) => {
+    const audioUrl = apiClient.getVersionAudioUrl(versionId);
+    setAudioWithAutoPlay(audioUrl, generationId, profileId, text.substring(0, 50));
+  };
+
   const handleImportConfirm = () => {
     if (selectedFile) {
       importGeneration.mutate(selectedFile, {
@@ -274,15 +397,24 @@ export function HistoryTable() {
               const isGenerating = gen.status === 'generating';
               const isFailed = gen.status === 'failed';
               const isPlayable = !isGenerating && !isFailed;
+              const hasVersions = gen.versions && gen.versions.length > 1;
+              const isVersionsExpanded = expandedVersionsId === gen.id;
               return (
                 <div
                   key={gen.id}
+                  className={cn(
+                    'border rounded-md bg-card transition-colors text-left w-full',
+                    isCurrentlyPlaying && 'bg-muted/70',
+                  )}
+                >
+                  {/* Main row */}
+                  <div
                     role={isPlayable ? 'button' : undefined}
                     tabIndex={isPlayable ? 0 : undefined}
                     className={cn(
-                    'flex items-stretch gap-4 h-26 border rounded-md p-3 bg-card transition-colors text-left w-full',
+                      'flex items-stretch gap-4 h-26 p-3',
-                    isPlayable && 'hover:bg-muted/70 cursor-pointer',
+                      isPlayable && 'hover:bg-muted/70 cursor-pointer rounded-md',
-                    isCurrentlyPlaying && 'bg-muted/70',
+                      isVersionsExpanded && 'rounded-b-none',
                     )}
                     aria-label={
                       isGenerating
@@ -360,30 +492,62 @@ export function HistoryTable() {
 
                     {/* Far right - Actions */}
                     <div
-                    className="w-10 shrink-0 flex justify-end items-center"
+                      className="shrink-0 flex flex-col justify-center items-center gap-0.5"
                       onMouseDown={(e) => e.stopPropagation()}
                       onClick={(e) => e.stopPropagation()}
                     >
+                      <Button
+                        variant="ghost"
+                        size="icon"
+                        className={cn(
+                          'h-6 w-6 text-muted-foreground/50 hover:bg-muted-foreground/20 hover:text-muted-foreground',
+                          gen.is_favorited && 'text-accent hover:text-accent',
+                        )}
+                        aria-label={gen.is_favorited ? 'Unfavorite' : 'Favorite'}
+                        onClick={() => handleToggleFavorite(gen.id)}
+                      >
+                        <Star
+                          className="h-2 w-2"
+                          fill={gen.is_favorited ? 'currentColor' : 'none'}
+                        />
+                      </Button>
+                      {hasVersions && (
+                        <Button
+                          variant="ghost"
+                          size="icon"
+                          className={cn(
+                            'h-6 w-6 text-muted-foreground/50 hover:bg-muted-foreground/20 hover:text-muted-foreground',
+                            isVersionsExpanded && 'text-accent hover:text-accent',
+                          )}
+                          aria-label="Toggle versions"
+                          onClick={() => setExpandedVersionsId(isVersionsExpanded ? null : gen.id)}
+                        >
+                          <AudioLines className="h-2 w-2" />
+                        </Button>
+                      )}
+
                       {isFailed ? (
                         <Button
                           variant="ghost"
                           size="icon"
-                        className="h-8 w-8"
+                          className="h-6 w-6 text-muted-foreground/50 hover:bg-muted-foreground/20 hover:text-muted-foreground"
                           aria-label="Retry generation"
                           onClick={() => handleRetry(gen.id)}
                         >
-                        <RotateCcw className="h-4 w-4" />
+                          <RotateCcw className="h-2 w-2" />
                         </Button>
-                    ) : isPlayable ? (
+                      ) : (
+                        <>
                           <DropdownMenu>
                             <DropdownMenuTrigger asChild>
                               <Button
                                 variant="ghost"
                                 size="icon"
-                            className="h-8 w-8"
+                                className="h-6 w-6 text-muted-foreground/50 hover:bg-muted-foreground/20 hover:text-muted-foreground"
                                 aria-label="Actions"
+                                disabled={isGenerating}
                               >
-                            <MoreHorizontal className="h-4 w-4" />
+                                <MoreHorizontal className="h-2 w-2" />
                               </Button>
                             </DropdownMenuTrigger>
                             <DropdownMenuContent align="end">
@@ -407,19 +571,90 @@ export function HistoryTable() {
                                 <FileArchive className="mr-2 h-4 w-4" />
                                 Export Package
                               </DropdownMenuItem>
+                              <DropdownMenuItem onClick={() => handleApplyEffects(gen.id)}>
+                                <Wand2 className="mr-2 h-4 w-4" />
+                                Apply Effects
+                              </DropdownMenuItem>
+                              <DropdownMenuItem onClick={() => handleRegenerate(gen.id)}>
+                                <RotateCcw className="mr-2 h-4 w-4" />
+                                Regenerate
+                              </DropdownMenuItem>
                               <DropdownMenuItem
                                 onClick={() => handleDeleteClick(gen.id, gen.profile_name)}
                                 disabled={deleteGeneration.isPending}
-                            className="text-destructive focus:text-destructive"
+                                // className="text-destructive focus:text-destructive"
                               >
                                 <Trash2 className="mr-2 h-4 w-4" />
                                 Delete
                               </DropdownMenuItem>
                             </DropdownMenuContent>
                           </DropdownMenu>
-                    ) : null}
+                        </>
+                      )}
                     </div>
                   </div>
+
+                  {/* Expandable versions panel */}
+                  <AnimatePresence>
+                    {isVersionsExpanded && gen.versions && (
+                      <motion.div
+                        initial={{ height: 0, opacity: 0 }}
+                        animate={{ height: 'auto', opacity: 1 }}
+                        exit={{ height: 0, opacity: 0 }}
+                        transition={{ duration: 0.2, ease: 'easeOut' }}
+                        className="overflow-hidden"
+                      >
+                        <div className="border-t border-border/50">
+                          <div className="divide-y divide-border/40">
+                            {gen.versions.map((v) => {
+                              // Show source provenance when effects were applied to a non-clean version
+                              const sourceVersion = v.source_version_id
+                                ? gen.versions?.find((sv) => sv.id === v.source_version_id)
+                                : null;
+                              const showSource =
+                                sourceVersion &&
+                                sourceVersion.effects_chain &&
+                                sourceVersion.effects_chain.length > 0;
+
+                              return (
+                                <button
+                                  key={v.id}
+                                  type="button"
+                                  className="flex items-center gap-2 w-full h-9 px-3 text-left hover:bg-muted/50 transition-colors"
+                                  onClick={() => {
+                                    handlePlayVersion(gen.id, v.id, gen.text, gen.profile_id);
+                                    if (!v.is_default) {
+                                      handleSwitchVersion(gen.id, v.id);
+                                    }
+                                  }}
+                                >
+                                  <AudioLines className="h-3 w-3 shrink-0 text-muted-foreground" />
+                                  <span className="truncate text-xs font-medium">{v.label}</span>
+                                  {v.effects_chain && v.effects_chain.length > 0 && (
+                                    <span className="text-[10px] text-muted-foreground truncate">
+                                      {v.effects_chain.map((e) => e.type).join(' → ')}
+                                    </span>
+                                  )}
+                                  {showSource && (
+                                    <span className="text-[10px] text-muted-foreground/60 truncate">
+                                      from {sourceVersion.label}
+                                    </span>
+                                  )}
+                                  <span className="flex-1" />
+                                  {v.is_default && (
+                                    <span className="text-[10px] bg-accent/15 text-accent px-1.5 py-0.5 rounded-full">
+                                      active
+                                    </span>
+                                  )}
+                                </button>
+                              );
+                            })}
+                          </div>
+                        </div>
+                      </motion.div>
+                    )}
+                  </AnimatePresence>
+                </div>
               );
             })}
 
@@ -500,6 +735,57 @@ export function HistoryTable() {
           </DialogFooter>
         </DialogContent>
       </Dialog>
+
+      <Dialog open={effectsDialogOpen} onOpenChange={setEffectsDialogOpen}>
+        <DialogContent className="max-w-md">
+          <DialogHeader>
+            <DialogTitle>Apply Effects</DialogTitle>
+            <DialogDescription>
+              Configure post-processing effects to apply to this generation. A new version will be
+              created.
+            </DialogDescription>
+          </DialogHeader>
+          {effectsTargetVersions.length > 1 && (
+            <div className="space-y-1.5">
+              <label className="text-xs font-medium text-muted-foreground">Source</label>
+              <Select
+                value={effectsSourceVersionId ?? ''}
+                onValueChange={(val) => setEffectsSourceVersionId(val || null)}
+              >
+                <SelectTrigger className="h-8 text-xs">
+                  <SelectValue placeholder="Select source version" />
+                </SelectTrigger>
+                <SelectContent>
+                  {effectsTargetVersions.map((v) => (
+                    <SelectItem key={v.id} value={v.id} className="text-xs">
+                      {v.label}
+                      {v.effects_chain && v.effects_chain.length > 0 && (
+                        <span className="text-muted-foreground ml-1.5">
+                          ({v.effects_chain.map((e) => e.type).join(' + ')})
+                        </span>
+                      )}
+                    </SelectItem>
+                  ))}
+                </SelectContent>
+              </Select>
+            </div>
+          )}
+          <div className="py-2 max-h-80 overflow-y-auto">
+            <EffectsChainEditor value={effectsChain} onChange={setEffectsChain} />
+          </div>
+          <DialogFooter>
+            <Button variant="outline" onClick={() => setEffectsDialogOpen(false)}>
+              Cancel
+            </Button>
+            <Button
+              onClick={handleApplyEffectsConfirm}
+              disabled={applyingEffects || effectsChain.length === 0}
+            >
+              {applyingEffects ? 'Applying...' : 'Apply'}
+            </Button>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
     </div>
   );
 }

app/src/components/ServerSettings/ConnectionForm.tsx

@@ -113,7 +113,7 @@ export function ConnectionForm() {
               <Badge variant={health.gpu_available ? 'default' : 'secondary'}>
                 GPU: {health.gpu_available ? 'Available' : 'Not Available'}
               </Badge>
-              {health.vram_used_mb && (
+              {health.vram_used_mb != null && health.vram_used_mb > 0 && (
                 <Badge variant="outline">VRAM: {health.vram_used_mb.toFixed(0)} MB</Badge>
               )}
             </div>

app/src/components/ServerSettings/GpuAcceleration.tsx

@@ -26,7 +26,7 @@ export function GpuAcceleration() {
   // Query CUDA backend status
   const {
     data: cudaStatus,
-    isLoading: cudaStatusLoading,
+    isLoading: _cudaStatusLoading,
     refetch: refetchCudaStatus,
   } = useQuery({
     queryKey: ['cuda-status', serverUrl],
@@ -218,35 +218,33 @@ export function GpuAcceleration() {
         <CardTitle>GPU Acceleration</CardTitle>
       </CardHeader>
       <CardContent className="space-y-4">
-        {/* Current status */}
+        {/* GPU status */}
         <div className="space-y-1">
-          <div className="text-sm font-medium">Backend</div>
+          {health.gpu_available && health.gpu_type ? (
+            <>
+              <div className="text-sm font-medium">
+                {health.gpu_type.replace(/^(CUDA|ROCm|MPS|Metal|XPU|DirectML)\s*\((.+)\)$/, '$2') ||
+                  health.gpu_type}
+              </div>
               <div className="text-sm text-muted-foreground">
-            {isCurrentlyCuda
+                {health.gpu_type.replace(/\s*\(.+\)$/, '')}
-              ? 'CUDA (GPU accelerated)'
+                {health.vram_used_mb != null && health.vram_used_mb > 0
-              : hasNativeGpu
+                  ? ` \u00b7 ${health.vram_used_mb.toFixed(0)} MB VRAM used`
-                ? `${health.backend_type === 'mlx' ? 'MLX' : 'PyTorch'} (GPU accelerated)`
+                  : ''}
-                : 'CPU'}
-          </div>
-        </div>
-
-        {/* GPU info from health */}
-        {health.gpu_type && (
-          <div className="space-y-1">
-            <div className="text-sm font-medium">GPU</div>
-            <div className="text-sm text-muted-foreground">{health.gpu_type}</div>
-            {health.vram_used_mb != null && (
-              <div className="text-xs text-muted-foreground">
-                VRAM: {health.vram_used_mb.toFixed(0)} MB used
               </div>
+            </>
+          ) : (
+            <>
+              <div className="text-sm font-medium">CPU</div>
+              <div className="text-sm text-muted-foreground">No GPU acceleration available</div>
+            </>
           )}
         </div>
-        )}
 
         {/* Native GPU detected - no CUDA download needed */}
 
-        {/* CUDA download section - only show when native GPU is NOT detected (i.e., Windows/Linux NVIDIA users) */}
+        {/* CUDA download section - only show when no GPU is active (native or CUDA) */}
-        {!hasNativeGpu && (
+        {!hasNativeGpu && !isCurrentlyCuda && (
           <>
             {/* Download progress */}
             {cudaDownloading && downloadProgress && (

app/src/components/ServerSettings/ModelManagement.tsx

@@ -446,8 +446,7 @@ export function ModelManagement() {
                 className="text-xs text-muted-foreground h-7 px-2"
                 onClick={async () => {
                   try {
-                    const { open } = await import('@tauri-apps/plugin-shell');
+                    await platform.filesystem.openPath(cacheDir.path);
-                    await open(cacheDir.path);
                   } catch {
                     toast({ title: 'Failed to open model folder', variant: 'destructive' });
                   }
@@ -462,14 +461,9 @@ export function ModelManagement() {
                 className="text-xs text-muted-foreground h-7 px-2"
                 onClick={async () => {
                   try {
-                    const { open: openDialog } = await import('@tauri-apps/plugin-dialog');
+                    const newDir = await platform.filesystem.pickDirectory(
-                    const selected = await openDialog({
+                      'Choose model storage folder',
-                      directory: true,
+                    );
-                      title: 'Choose model storage folder',
-                    });
-                    if (!selected) return;
-                    const newDir =
-                      typeof selected === 'string' ? selected : (selected as { path: string }).path;
                     if (!newDir) return;
                     setPendingMigrateDir(newDir);
                   } catch {

app/src/components/ServerSettings/UpdateStatus.tsx

@@ -11,6 +11,7 @@ export function UpdateStatus() {
   const platform = usePlatform();
   const { status, checkForUpdates, downloadAndInstall, restartAndInstall } = useAutoUpdater(false);
   const [currentVersion, setCurrentVersion] = useState<string>('');
+  const isDev = !import.meta.env?.PROD;
 
   useEffect(() => {
     platform.metadata
@@ -20,11 +21,7 @@ export function UpdateStatus() {
   }, [platform]);
 
   return (
-    <Card
+    <Card role="region" aria-label="App Updates" tabIndex={0}>
-      role="region"
-      aria-label="App Updates"
-      tabIndex={0}
-    >
       <CardHeader>
         <CardTitle>App Updates</CardTitle>
       </CardHeader>
@@ -32,8 +29,12 @@ export function UpdateStatus() {
         <div className="flex items-center justify-between">
           <div className="space-y-1">
             <div className="text-sm font-medium">Current Version</div>
-            <div className="text-sm text-muted-foreground">v{currentVersion}</div>
+            <div className="text-sm text-muted-foreground">
+              v{currentVersion}
+              {isDev ? ' (dev)' : ''}
             </div>
+          </div>
+          {!isDev && (
             <Button
               onClick={checkForUpdates}
               disabled={status.checking || status.downloading || status.readyToInstall}
@@ -43,8 +44,15 @@ export function UpdateStatus() {
               <RefreshCw className={`h-4 w-4 mr-2 ${status.checking ? 'animate-spin' : ''}`} />
               Check for Updates
             </Button>
+          )}
         </div>
 
+        {isDev ? (
+          <div className="text-sm text-muted-foreground">
+            Auto-updates are disabled in development mode.
+          </div>
+        ) : (
+          <>
             {status.checking && (
               <div className="flex items-center gap-2 text-sm text-muted-foreground">
                 <RefreshCw className="h-4 w-4 animate-spin" />
@@ -109,8 +117,8 @@ export function UpdateStatus() {
                   </div>
                 </div>
                 <div className="text-sm text-muted-foreground">
-              The app needs to restart to complete the installation. You can do this now or later at
+                  The app needs to restart to complete the installation. You can do this now or
-              your convenience.
+                  later at your convenience.
                 </div>
                 <Button onClick={restartAndInstall} className="w-full" size="sm">
                   <RefreshCw className="h-4 w-4 mr-2" />
@@ -119,11 +127,13 @@ export function UpdateStatus() {
               </div>
             )}
 
-        {!status.available && !status.checking && !status.error && status.checking === false && (
+            {!status.available && !status.checking && !status.error && (
               <div className="flex items-center gap-2 text-sm text-muted-foreground">
                 You're up to date
               </div>
             )}
+          </>
+        )}
       </CardContent>
     </Card>
   );

app/src/components/Sidebar.tsx

@@ -1,5 +1,5 @@
 import { Link, useMatchRoute } from '@tanstack/react-router';
-import { BookOpen, Box, Mic, Server, Speaker, Volume2 } from 'lucide-react';
+import { AudioLines, Box, Mic, Server, Speaker, Volume2, Wand2 } from 'lucide-react';
 import voiceboxLogo from '@/assets/voicebox-logo.png';
 import { cn } from '@/lib/utils/cn';
 import { usePlayerStore } from '@/stores/playerStore';
@@ -11,8 +11,9 @@ interface SidebarProps {
 
 const tabs = [
   { id: 'main', path: '/', icon: Volume2, label: 'Generate' },
-  { id: 'stories', path: '/stories', icon: BookOpen, label: 'Stories' },
+  { id: 'stories', path: '/stories', icon: AudioLines, label: 'Stories' },
   { id: 'voices', path: '/voices', icon: Mic, label: 'Voices' },
+  { id: 'effects', path: '/effects', icon: Wand2, label: 'Effects' },
   { id: 'audio', path: '/audio', icon: Speaker, label: 'Audio' },
   { id: 'models', path: '/models', icon: Box, label: 'Models' },
   { id: 'server', path: '/server', icon: Server, label: 'Server' },
@@ -31,7 +32,15 @@ export function Sidebar({ isMacOS }: SidebarProps) {
     >
       {/* Logo */}
       <div className="mb-2">
-        <img src={voiceboxLogo} alt="Voicebox" className="w-12 h-12 object-contain" />
+        <img
+          src={voiceboxLogo}
+          alt="Voicebox"
+          className="w-12 h-12 object-contain"
+          style={{
+            filter:
+              'drop-shadow(0 0 6px hsl(var(--accent) / 0.5)) drop-shadow(0 0 14px hsl(var(--accent) / 0.35)) drop-shadow(0 0 28px hsl(var(--accent) / 0.2))',
+          }}
+        />
       </div>
 
       {/* Navigation Buttons */}
@@ -47,14 +56,25 @@ export function Sidebar({ isMacOS }: SidebarProps) {
               key={tab.id}
               to={tab.path}
               className={cn(
-                'w-12 h-12 rounded-full flex items-center justify-center transition-all duration-200',
+                'relative w-12 h-12 rounded-full flex items-center justify-center transition-all duration-200 overflow-hidden',
-                'hover:bg-muted/50',
+                isActive
-                isActive ? 'bg-muted/50 text-foreground shadow-lg' : 'text-muted-foreground',
+                  ? 'bg-white/[0.07] text-foreground shadow-lg backdrop-blur-sm border border-white/[0.08]'
+                  : 'text-muted-foreground hover:bg-muted/50',
               )}
               title={tab.label}
               aria-label={tab.label}
             >
-              <Icon className="h-5 w-5" />
+              {isActive && (
+                <div
+                  className="absolute inset-0 rounded-full pointer-events-none"
+                  style={{
+                    maskImage: 'linear-gradient(to bottom, black, transparent 60%)',
+                    WebkitMaskImage: 'linear-gradient(to bottom, black, transparent 60%)',
+                    border: '1px solid hsl(var(--accent) / 0.5)',
+                  }}
+                />
+              )}
+              <Icon className="h-5 w-5 relative z-10" />
             </Link>
           );
         })}

app/src/components/StoriesTab/StoryList.tsx

@@ -1,5 +1,5 @@
-import { Plus, BookOpen, MoreHorizontal, Pencil, Trash2 } from 'lucide-react';
+import { BookOpen, MoreHorizontal, Pencil, Plus, Trash2 } from 'lucide-react';
-import { useState } from 'react';
+import { useEffect, useState } from 'react';
 import {
   AlertDialog,
   AlertDialogAction,
@@ -29,7 +29,13 @@ import { Input } from '@/components/ui/input';
 import { Label } from '@/components/ui/label';
 import { Textarea } from '@/components/ui/textarea';
 import { useToast } from '@/components/ui/use-toast';
-import { useStories, useCreateStory, useUpdateStory, useDeleteStory } from '@/lib/hooks/useStories';
+import {
+  useCreateStory,
+  useDeleteStory,
+  useStories,
+  useStory,
+  useUpdateStory,
+} from '@/lib/hooks/useStories';
 import { cn } from '@/lib/utils/cn';
 import { formatDate } from '@/lib/utils/format';
 import { useStoryStore } from '@/stores/storyStore';
@@ -38,6 +44,8 @@ export function StoryList() {
   const { data: stories, isLoading } = useStories();
   const selectedStoryId = useStoryStore((state) => state.selectedStoryId);
   const setSelectedStoryId = useStoryStore((state) => state.setSelectedStoryId);
+  const trackEditorHeight = useStoryStore((state) => state.trackEditorHeight);
+  const { data: selectedStory } = useStory(selectedStoryId);
   const createStory = useCreateStory();
   const updateStory = useUpdateStory();
   const deleteStory = useDeleteStory();
@@ -54,6 +62,13 @@ export function StoryList() {
   const [newStoryDescription, setNewStoryDescription] = useState('');
   const { toast } = useToast();
 
+  // Auto-select the first story when the list loads with no selection
+  useEffect(() => {
+    if (!selectedStoryId && stories && stories.length > 0) {
+      setSelectedStoryId(stories[0].id);
+    }
+  }, [selectedStoryId, stories, setSelectedStoryId]);
+
   const handleCreateStory = () => {
     if (!newStoryName.trim()) {
       toast({
@@ -170,10 +185,15 @@ export function StoryList() {
   }
 
   const storyList = stories || [];
+  const hasTrackEditor = selectedStoryId && selectedStory && selectedStory.items.length > 0;
 
   return (
-    <div className="flex flex-col h-full min-h-0">
+    <div className="h-full flex flex-col relative overflow-hidden">
-      {/* Header */}
+      {/* Scroll Mask */}
+      <div className="absolute top-0 left-0 right-0 h-16 bg-gradient-to-b from-background to-transparent z-10 pointer-events-none" />
+
+      {/* Fixed Header */}
+      <div className="absolute top-0 left-0 right-0 z-20">
         <div className="flex items-center justify-between mb-4 px-1">
           <h2 className="text-2xl font-bold">Stories</h2>
           <Button onClick={() => setCreateDialogOpen(true)} size="sm">
@@ -181,9 +201,13 @@ export function StoryList() {
             New Story
           </Button>
         </div>
+      </div>
 
-      {/* Story List */}
+      {/* Scrollable Story List */}
-      <div className="flex-1 min-h-0 overflow-y-auto space-y-2">
+      <div
+        className="flex-1 overflow-y-auto pt-14 relative z-0"
+        style={{ paddingBottom: hasTrackEditor ? `${trackEditorHeight + 140}px` : '170px' }}
+      >
         {storyList.length === 0 ? (
           <div className="text-center py-12 px-5 border-2 border-dashed border-muted rounded-2xl text-muted-foreground">
             <BookOpen className="h-12 w-12 mx-auto mb-4 opacity-50" />
@@ -191,20 +215,17 @@ export function StoryList() {
             <p className="text-xs mt-2">Create your first story to get started</p>
           </div>
         ) : (
-          storyList.map((story) => (
+          <div className="space-y-0.5">
+            {storyList.map((story) => (
               <div
                 key={story.id}
                 role="button"
                 tabIndex={0}
                 className={cn(
-                'h-24 p-4 border rounded-2xl transition-colors group flex items-center cursor-pointer',
+                  'px-5 py-3 rounded-lg transition-colors group flex items-center cursor-pointer',
-                selectedStoryId === story.id && 'bg-muted border-primary',
+                  selectedStoryId === story.id ? 'bg-muted' : 'hover:bg-muted/50',
                 )}
-              aria-label={
+                aria-label={`Story ${story.name}, ${story.item_count} ${story.item_count === 1 ? 'item' : 'items'}, ${formatDate(story.updated_at)}`}
-                selectedStoryId === story.id
-                  ? `Story ${story.name}, ${story.item_count} ${story.item_count === 1 ? 'item' : 'items'}, ${formatDate(story.updated_at)}. Selected. Press Enter to select.`
-                  : `Story ${story.name}, ${story.item_count} ${story.item_count === 1 ? 'item' : 'items'}, ${formatDate(story.updated_at)}. Press Enter to select.`
-              }
                 aria-pressed={selectedStoryId === story.id}
                 onClick={() => setSelectedStoryId(story.id)}
                 onKeyDown={(e) => {
@@ -217,17 +238,12 @@ export function StoryList() {
               >
                 <div className="flex items-start justify-between gap-2 w-full min-w-0">
                   <div className="flex-1 min-w-0 text-left overflow-hidden">
-                  <h3 className="font-medium truncate">{story.name}</h3>
+                    <h3 className="text-sm font-medium truncate">{story.name}</h3>
-                  {story.description && (
+                    <div className="flex items-center gap-2 mt-1 text-xs text-muted-foreground">
-                    <p className="text-sm text-muted-foreground mt-1 truncate">
-                      {story.description}
-                    </p>
-                  )}
-                  <div className="flex items-center gap-3 mt-2 text-xs text-muted-foreground">
                       <span>
                         {story.item_count} {story.item_count === 1 ? 'item' : 'items'}
                       </span>
-                    <span>•</span>
+                      <span>·</span>
                       <span>{formatDate(story.updated_at)}</span>
                     </div>
                   </div>
@@ -236,11 +252,11 @@ export function StoryList() {
                       <Button
                         variant="ghost"
                         size="icon"
-                      className="h-8 w-8 opacity-0 group-hover:opacity-100 transition-opacity"
+                        className="h-7 w-7 opacity-0 group-hover:opacity-100 transition-opacity"
                         onClick={(e) => e.stopPropagation()}
                         aria-label={`Actions for ${story.name}`}
                       >
-                      <MoreHorizontal className="h-4 w-4" />
+                        <MoreHorizontal className="h-3.5 w-3.5" />
                       </Button>
                     </DropdownMenuTrigger>
                     <DropdownMenuContent align="end">
@@ -259,7 +275,8 @@ export function StoryList() {
                   </DropdownMenu>
                 </div>
               </div>
-          ))
+            ))}
+          </div>
         )}
       </div>
 

app/src/components/StoriesTab/StoryTrackEditor.tsx

@@ -1,5 +1,7 @@
 import {
+  Check,
   Copy,
+  GalleryVerticalEnd,
   GripHorizontal,
   Minus,
   Pause,
@@ -12,6 +14,12 @@ import {
 import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
 import WaveSurfer from 'wavesurfer.js';
 import { Button } from '@/components/ui/button';
+import {
+  DropdownMenu,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuTrigger,
+} from '@/components/ui/dropdown-menu';
 import { useToast } from '@/components/ui/use-toast';
 import { apiClient } from '@/lib/api/client';
 import type { StoryItemDetail } from '@/lib/api/types';
@@ -19,6 +27,7 @@ import {
   useDuplicateStoryItem,
   useMoveStoryItem,
   useRemoveStoryItem,
+  useSetStoryItemVersion,
   useSplitStoryItem,
   useTrimStoryItem,
 } from '@/lib/hooks/useStories';
@@ -28,12 +37,14 @@ import { useStoryStore } from '@/stores/storyStore';
 // Clip waveform component with trim support
 function ClipWaveform({
   generationId,
+  versionId,
   width,
   trimStartMs,
   trimEndMs,
   duration,
 }: {
   generationId: string;
+  versionId?: string;
   width: number;
   trimStartMs: number;
   trimEndMs: number;
@@ -79,7 +90,9 @@ function ClipWaveform({
 
     wavesurferRef.current = wavesurfer;
 
-    const audioUrl = apiClient.getAudioUrl(generationId);
+    const audioUrl = versionId
+      ? apiClient.getVersionAudioUrl(versionId)
+      : apiClient.getAudioUrl(generationId);
     wavesurfer.load(audioUrl).catch(() => {
       // Ignore load errors
     });
@@ -88,7 +101,7 @@ function ClipWaveform({
       wavesurfer.destroy();
       wavesurferRef.current = null;
     };
-  }, [generationId, fullWaveformWidth]);
+  }, [generationId, versionId, fullWaveformWidth]);
 
   return (
     <div className="w-full h-full opacity-60 overflow-hidden">
@@ -135,12 +148,57 @@ export function StoryTrackEditor({ storyId, items }: StoryTrackEditorProps) {
   const splitItem = useSplitStoryItem();
   const duplicateItem = useDuplicateStoryItem();
   const removeItem = useRemoveStoryItem();
+  const setItemVersion = useSetStoryItemVersion();
   const { toast } = useToast();
 
   // Selection state
   const selectedClipId = useStoryStore((state) => state.selectedClipId);
   const setSelectedClipId = useStoryStore((state) => state.setSelectedClipId);
 
+  // Selected clip item (for version picker)
+  const selectedItem = useMemo(
+    () => (selectedClipId ? items.find((i) => i.id === selectedClipId) : undefined),
+    [selectedClipId, items],
+  );
+  const selectedItemVersions = selectedItem?.versions;
+  const hasMultipleVersions = selectedItemVersions && selectedItemVersions.length > 1;
+
+  // Determine which version label is active for the selected clip
+  const activeVersionLabel = useMemo(() => {
+    if (!selectedItem || !selectedItemVersions) return null;
+    // If the item has a pinned version_id, find its label
+    if (selectedItem.version_id) {
+      const pinned = selectedItemVersions.find((v) => v.id === selectedItem.version_id);
+      return pinned?.label ?? null;
+    }
+    // Otherwise use the generation's default version
+    const defaultVersion = selectedItemVersions.find((v) => v.is_default);
+    return defaultVersion?.label ?? null;
+  }, [selectedItem, selectedItemVersions]);
+
+  const handleSetVersion = useCallback(
+    (versionId: string | null) => {
+      if (!selectedClipId) return;
+      setItemVersion.mutate(
+        {
+          storyId,
+          itemId: selectedClipId,
+          data: { version_id: versionId },
+        },
+        {
+          onError: (error) => {
+            toast({
+              title: 'Failed to set version',
+              description: error instanceof Error ? error.message : String(error),
+              variant: 'destructive',
+            });
+          },
+        },
+      );
+    },
+    [selectedClipId, storyId, setItemVersion, toast],
+  );
+
   // Trim state
   const [trimmingItem, setTrimmingItem] = useState<string | null>(null);
   const [trimSide, setTrimSide] = useState<'start' | 'end' | null>(null);
@@ -788,6 +846,49 @@ export function StoryTrackEditor({ storyId, items }: StoryTrackEditorProps) {
               >
                 <Trash2 className="h-4 w-4" />
               </Button>
+              {hasMultipleVersions && (
+                <>
+                  <div className="w-px h-4 bg-border mx-1" />
+                  <DropdownMenu>
+                    <DropdownMenuTrigger asChild>
+                      <Button
+                        variant="ghost"
+                        className="h-7 gap-1.5 px-2 text-xs"
+                        title="Change version/take"
+                      >
+                        <GalleryVerticalEnd className="h-3.5 w-3.5" />
+                        <span className="max-w-[80px] truncate">
+                          {activeVersionLabel ?? 'default'}
+                        </span>
+                      </Button>
+                    </DropdownMenuTrigger>
+                    <DropdownMenuContent align="center" className="min-w-[160px]">
+                      {selectedItemVersions.map((version) => {
+                        const isActive = selectedItem?.version_id
+                          ? version.id === selectedItem.version_id
+                          : version.is_default;
+                        return (
+                          <DropdownMenuItem
+                            key={version.id}
+                            onClick={() => handleSetVersion(version.id)}
+                            className="gap-2 text-xs"
+                          >
+                            <Check
+                              className={cn('h-3 w-3', isActive ? 'opacity-100' : 'opacity-0')}
+                            />
+                            <span className="truncate">{version.label}</span>
+                            {version.effects_chain && version.effects_chain.length > 0 && (
+                              <span className="text-muted-foreground ml-auto text-[10px]">
+                                {version.effects_chain.length} fx
+                              </span>
+                            )}
+                          </DropdownMenuItem>
+                        );
+                      })}
+                    </DropdownMenuContent>
+                  </DropdownMenu>
+                </>
+              )}
             </div>
           )}
 
@@ -958,6 +1059,7 @@ export function StoryTrackEditor({ storyId, items }: StoryTrackEditorProps) {
                       <div className="absolute inset-0 top-3">
                         <ClipWaveform
                           generationId={item.generation_id}
+                          versionId={item.version_id}
                           width={clipWidth}
                           trimStartMs={displayTrimStart}
                           trimEndMs={displayTrimEnd}

app/src/components/TitleBarDragRegion.tsx

@@ -1,8 +1,7 @@
+const isWindows = navigator.userAgent.includes('Windows');
+
 export function TitleBarDragRegion() {
-  return (
+  if (isWindows) return null;
-    <div
+
-      data-tauri-drag-region
+  return <div data-tauri-drag-region className="fixed top-0 left-0 right-0 h-12 z-[9999]" />;
-      className="fixed top-0 left-0 right-0 h-12 z-[9999]"
-    />
-  );
 }

app/src/components/VoiceProfiles/ProfileCard.tsx

@@ -1,4 +1,4 @@
-import { Download, Edit, Mic, Trash2 } from 'lucide-react';
+import { Download, Edit, Sparkles, Trash2 } from 'lucide-react';
 import { useState } from 'react';
 import { Badge } from '@/components/ui/badge';
 import { Button } from '@/components/ui/button';
@@ -15,7 +15,6 @@ import {
 import type { VoiceProfileResponse } from '@/lib/api/types';
 import { useDeleteProfile, useExportProfile } from '@/lib/hooks/useProfiles';
 import { cn } from '@/lib/utils/cn';
-import { useServerStore } from '@/stores/serverStore';
 import { useUIStore } from '@/stores/uiStore';
 
 interface ProfileCardProps {
@@ -24,19 +23,16 @@ interface ProfileCardProps {
 
 export function ProfileCard({ profile }: ProfileCardProps) {
   const [deleteDialogOpen, setDeleteDialogOpen] = useState(false);
-  const [avatarError, setAvatarError] = useState(false);
+
   const deleteProfile = useDeleteProfile();
   const exportProfile = useExportProfile();
   const setEditingProfileId = useUIStore((state) => state.setEditingProfileId);
   const setProfileDialogOpen = useUIStore((state) => state.setProfileDialogOpen);
   const selectedProfileId = useUIStore((state) => state.selectedProfileId);
   const setSelectedProfileId = useUIStore((state) => state.setSelectedProfileId);
-  const serverUrl = useServerStore((state) => state.serverUrl);
 
   const isSelected = selectedProfileId === profile.id;
 
-  const avatarUrl = profile.avatar_path ? `${serverUrl}/profiles/${profile.id}/avatar` : null;
-
   const handleSelect = () => {
     setSelectedProfileId(isSelected ? null : profile.id);
   };
@@ -79,7 +75,7 @@ export function ProfileCard({ profile }: ProfileCardProps) {
       <Card
         className={cn(
           'cursor-pointer hover:shadow-md transition-all flex flex-col h-[162px]',
-          isSelected && 'ring-2 ring-primary shadow-md',
+          isSelected && 'ring-2 ring-accent shadow-md',
         )}
         onClick={handleSelect}
         tabIndex={0}
@@ -89,22 +85,7 @@ export function ProfileCard({ profile }: ProfileCardProps) {
         onKeyDown={handleKeyDown}
       >
         <CardHeader className="p-3 pb-2">
-          <CardTitle className="flex items-center gap-1.5 text-base font-medium">
+          <CardTitle className="text-base font-medium">
-            <div className="h-6 w-6 rounded-full bg-muted flex items-center justify-center shrink-0 overflow-hidden">
-              {avatarUrl && !avatarError ? (
-                <img
-                  src={avatarUrl}
-                  alt={`${profile.name} avatar`}
-                  className={cn(
-                    'h-full w-full object-cover transition-all duration-200',
-                    !isSelected && 'grayscale',
-                  )}
-                  onError={() => setAvatarError(true)}
-                />
-              ) : (
-                <Mic className="h-3.5 w-3.5 text-muted-foreground" />
-              )}
-            </div>
             <span className="break-words">{profile.name}</span>
           </CardTitle>
         </CardHeader>
@@ -112,10 +93,13 @@ export function ProfileCard({ profile }: ProfileCardProps) {
           <p className="text-xs text-muted-foreground mb-1.5 line-clamp-2 leading-relaxed">
             {profile.description || 'No description'}
           </p>
-          <div className="mb-2">
+          <div className="mb-2 flex items-center gap-1.5">
             <Badge variant="outline" className="text-xs h-5 px-1.5 text-muted-foreground">
               {profile.language}
             </Badge>
+            {profile.effects_chain && profile.effects_chain.length > 0 && (
+              <Sparkles className="h-3.5 w-3.5 text-accent fill-accent" />
+            )}
           </div>
           <div className="flex gap-0.5 justify-end items-end mt-auto">
             <CircleButton

app/src/components/VoiceProfiles/ProfileForm.tsx

@@ -3,6 +3,7 @@ import { Edit2, Mic, Monitor, Upload, X } from 'lucide-react';
 import { useEffect, useRef, useState } from 'react';
 import { useForm } from 'react-hook-form';
 import * as z from 'zod';
+import { EffectsChainEditor } from '@/components/Effects/EffectsChainEditor';
 import { Button } from '@/components/ui/button';
 import {
   Dialog,
@@ -30,6 +31,8 @@ import {
 import { Tabs, TabsContent, TabsList, TabsTrigger } from '@/components/ui/tabs';
 import { Textarea } from '@/components/ui/textarea';
 import { useToast } from '@/components/ui/use-toast';
+import { apiClient } from '@/lib/api/client';
+import type { EffectConfig } from '@/lib/api/types';
 import { LANGUAGE_CODES, LANGUAGE_OPTIONS, type LanguageCode } from '@/lib/constants/languages';
 import { useAudioPlayer } from '@/lib/hooks/useAudioPlayer';
 import { useAudioRecording } from '@/lib/hooks/useAudioRecording';
@@ -125,6 +128,8 @@ export function ProfileForm() {
   const { isPlaying, playPause, cleanup: cleanupAudio } = useAudioPlayer();
   const isCreating = !editingProfileId;
   const serverUrl = useServerStore((state) => state.serverUrl);
+  const [profileEffectsChain, setProfileEffectsChain] = useState<EffectConfig[]>([]);
+  const [effectsDirty, setEffectsDirty] = useState(false);
 
   const form = useForm<ProfileFormValues>({
     resolver: zodResolver(profileSchema),
@@ -280,6 +285,8 @@ export function ProfileForm() {
         referenceText: undefined,
         avatarFile: undefined,
       });
+      setProfileEffectsChain(editingProfile.effects_chain ?? []);
+      setEffectsDirty(false);
     } else if (profileFormDraft && open) {
       // Restore from draft when opening in create mode
       form.reset({
@@ -435,6 +442,24 @@ export function ProfileForm() {
           }
         }
 
+        // Save effects chain if changed
+        if (effectsDirty) {
+          try {
+            await apiClient.updateProfileEffects(
+              editingProfileId,
+              profileEffectsChain.length > 0 ? profileEffectsChain : null,
+            );
+          } catch (fxError) {
+            toast({
+              title: 'Effects update failed',
+              description:
+                fxError instanceof Error ? fxError.message : 'Failed to save effects chain',
+              variant: 'destructive',
+            });
+            return;
+          }
+        }
+
         toast({
           title: 'Voice updated',
           description: `"${data.name}" has been updated successfully.`,
@@ -898,6 +923,23 @@ export function ProfileForm() {
                       </FormItem>
                     )}
                   />
+
+                  {editingProfileId && (
+                    <div className="space-y-2">
+                      <FormLabel>Default Effects</FormLabel>
+                      <p className="text-xs text-muted-foreground">
+                        Effects applied automatically to all new generations with this voice.
+                      </p>
+                      <EffectsChainEditor
+                        value={profileEffectsChain}
+                        onChange={(chain) => {
+                          setProfileEffectsChain(chain);
+                          setEffectsDirty(true);
+                        }}
+                        compact
+                      />
+                    </div>
+                  )}
                 </div>
               </div>
 

app/src/components/VoicesTab/VoiceInspector.tsx

@@ -0,0 +1,340 @@
+import { zodResolver } from '@hookform/resolvers/zod';
+import { Edit2, Mic, X } from 'lucide-react';
+import { useEffect, useRef, useState } from 'react';
+import { useForm } from 'react-hook-form';
+import * as z from 'zod';
+import { EffectsChainEditor } from '@/components/Effects/EffectsChainEditor';
+import { Button } from '@/components/ui/button';
+import {
+  Form,
+  FormControl,
+  FormField,
+  FormItem,
+  FormLabel,
+  FormMessage,
+} from '@/components/ui/form';
+import { Input } from '@/components/ui/input';
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from '@/components/ui/select';
+import { Textarea } from '@/components/ui/textarea';
+import { useToast } from '@/components/ui/use-toast';
+import { SampleList } from '@/components/VoiceProfiles/SampleList';
+import { apiClient } from '@/lib/api/client';
+import type { EffectConfig } from '@/lib/api/types';
+import { LANGUAGE_CODES, LANGUAGE_OPTIONS, type LanguageCode } from '@/lib/constants/languages';
+import { BOTTOM_SAFE_AREA_PADDING } from '@/lib/constants/ui';
+import {
+  useDeleteAvatar,
+  useProfile,
+  useUpdateProfile,
+  useUploadAvatar,
+} from '@/lib/hooks/useProfiles';
+import { cn } from '@/lib/utils/cn';
+import { usePlayerStore } from '@/stores/playerStore';
+import { useServerStore } from '@/stores/serverStore';
+
+const profileSchema = z.object({
+  name: z.string().min(1, 'Name is required').max(100),
+  description: z.string().max(500).optional(),
+  language: z.enum(LANGUAGE_CODES as [LanguageCode, ...LanguageCode[]]),
+});
+
+type ProfileFormValues = z.infer<typeof profileSchema>;
+
+interface VoiceInspectorProps {
+  profileId: string;
+}
+
+export function VoiceInspector({ profileId }: VoiceInspectorProps) {
+  const { data: profile } = useProfile(profileId);
+  const audioUrl = usePlayerStore((state) => state.audioUrl);
+  const isPlayerVisible = !!audioUrl;
+  const updateProfile = useUpdateProfile();
+  const uploadAvatar = useUploadAvatar();
+  const deleteAvatar = useDeleteAvatar();
+  const serverUrl = useServerStore((state) => state.serverUrl);
+  const { toast } = useToast();
+
+  const [avatarPreview, setAvatarPreview] = useState<string | null>(null);
+  const [avatarError, setAvatarError] = useState(false);
+  const avatarInputRef = useRef<HTMLInputElement>(null);
+
+  const [effectsChain, setEffectsChain] = useState<EffectConfig[]>([]);
+  const [effectsDirty, setEffectsDirty] = useState(false);
+
+  const form = useForm<ProfileFormValues>({
+    resolver: zodResolver(profileSchema),
+    defaultValues: {
+      name: '',
+      description: '',
+      language: 'en',
+    },
+  });
+
+  // Populate form when profile loads
+  useEffect(() => {
+    if (profile) {
+      form.reset({
+        name: profile.name,
+        description: profile.description || '',
+        language: profile.language as LanguageCode,
+      });
+      setEffectsChain(profile.effects_chain ?? []);
+      setEffectsDirty(false);
+    }
+  }, [profile, form]);
+
+  // Avatar preview
+  useEffect(() => {
+    if (profile?.avatar_path) {
+      setAvatarPreview(`${serverUrl}/profiles/${profile.id}/avatar`);
+    } else {
+      setAvatarPreview(null);
+    }
+    setAvatarError(false);
+  }, [profile, serverUrl]);
+
+  function handleAvatarFileChange(e: React.ChangeEvent<HTMLInputElement>) {
+    const file = e.target.files?.[0];
+    if (!file) return;
+    if (!file.type.startsWith('image/')) {
+      toast({
+        title: 'Invalid file type',
+        description: 'Please select PNG, JPG, or WebP',
+        variant: 'destructive',
+      });
+      return;
+    }
+    if (file.size > 5 * 1024 * 1024) {
+      toast({
+        title: 'File too large',
+        description: 'Image must be less than 5MB',
+        variant: 'destructive',
+      });
+      return;
+    }
+    // Upload immediately
+    uploadAvatar.mutate(
+      { profileId, file },
+      {
+        onSuccess: () => {
+          setAvatarPreview(URL.createObjectURL(file));
+          toast({ title: 'Avatar updated' });
+        },
+        onError: (err) => {
+          toast({
+            title: 'Avatar upload failed',
+            description: err instanceof Error ? err.message : 'Unknown error',
+            variant: 'destructive',
+          });
+        },
+      },
+    );
+  }
+
+  async function handleRemoveAvatar() {
+    if (profile?.avatar_path) {
+      try {
+        await deleteAvatar.mutateAsync(profileId);
+        toast({ title: 'Avatar removed' });
+      } catch (err) {
+        toast({
+          title: 'Failed to remove avatar',
+          description: err instanceof Error ? err.message : 'Unknown error',
+          variant: 'destructive',
+        });
+      }
+    }
+    setAvatarPreview(null);
+    if (avatarInputRef.current) avatarInputRef.current.value = '';
+  }
+
+  async function onSubmit(data: ProfileFormValues) {
+    try {
+      await updateProfile.mutateAsync({
+        profileId,
+        data: {
+          name: data.name,
+          description: data.description,
+          language: data.language,
+        },
+      });
+
+      if (effectsDirty) {
+        try {
+          await apiClient.updateProfileEffects(
+            profileId,
+            effectsChain.length > 0 ? effectsChain : null,
+          );
+          setEffectsDirty(false);
+        } catch (fxError) {
+          toast({
+            title: 'Effects update failed',
+            description: fxError instanceof Error ? fxError.message : 'Failed to save effects',
+            variant: 'destructive',
+          });
+          return;
+        }
+      }
+
+      toast({ title: 'Voice updated', description: `"${data.name}" saved.` });
+    } catch (error) {
+      toast({
+        title: 'Error',
+        description: error instanceof Error ? error.message : 'Failed to save profile',
+        variant: 'destructive',
+      });
+    }
+  }
+
+  if (!profile) {
+    return (
+      <div className="flex items-center justify-center h-full text-muted-foreground text-sm">
+        Loading...
+      </div>
+    );
+  }
+
+  const isDirty = form.formState.isDirty || effectsDirty;
+
+  return (
+    <div className="h-full flex flex-col overflow-hidden">
+      <div className={cn('flex-1 overflow-y-auto', isPlayerVisible && BOTTOM_SAFE_AREA_PADDING)}>
+        <Form {...form}>
+          <form onSubmit={form.handleSubmit(onSubmit)} className="space-y-0">
+            {/* Avatar */}
+            <div className="flex justify-center pt-5 pb-3">
+              <div className="relative group">
+                <div className="h-20 w-20 rounded-full bg-muted flex items-center justify-center shrink-0 overflow-hidden border-2 border-border">
+                  {avatarPreview && !avatarError ? (
+                    <img
+                      src={avatarPreview}
+                      alt={profile.name}
+                      className="h-full w-full object-cover"
+                      onError={() => setAvatarError(true)}
+                    />
+                  ) : (
+                    <Mic className="h-8 w-8 text-muted-foreground" />
+                  )}
+                </div>
+                <button
+                  type="button"
+                  onClick={() => avatarInputRef.current?.click()}
+                  className="absolute inset-0 rounded-full bg-accent/60 opacity-0 group-hover:opacity-100 transition-opacity flex items-center justify-center cursor-pointer"
+                >
+                  <Edit2 className="h-5 w-5 text-accent-foreground" />
+                </button>
+                {avatarPreview && (
+                  <button
+                    type="button"
+                    onClick={handleRemoveAvatar}
+                    disabled={deleteAvatar.isPending}
+                    className="absolute bottom-0 right-0 h-5 w-5 rounded-full bg-background/60 backdrop-blur-sm text-muted-foreground flex items-center justify-center hover:bg-background/80 hover:text-foreground transition-colors shadow-sm border border-border/50"
+                  >
+                    <X className="h-3 w-3" />
+                  </button>
+                )}
+              </div>
+              <input
+                ref={avatarInputRef}
+                type="file"
+                accept="image/png,image/jpeg,image/webp"
+                onChange={handleAvatarFileChange}
+                className="hidden"
+              />
+            </div>
+
+            {/* Fields */}
+            <div className="space-y-3 px-5">
+              <FormField
+                control={form.control}
+                name="name"
+                render={({ field }) => (
+                  <FormItem>
+                    <FormLabel>Name</FormLabel>
+                    <FormControl>
+                      <Input placeholder="My Voice" {...field} />
+                    </FormControl>
+                    <FormMessage />
+                  </FormItem>
+                )}
+              />
+
+              <FormField
+                control={form.control}
+                name="description"
+                render={({ field }) => (
+                  <FormItem>
+                    <FormLabel>Description</FormLabel>
+                    <FormControl>
+                      <Textarea placeholder="Describe this voice..." rows={2} {...field} />
+                    </FormControl>
+                    <FormMessage />
+                  </FormItem>
+                )}
+              />
+
+              <FormField
+                control={form.control}
+                name="language"
+                render={({ field }) => (
+                  <FormItem>
+                    <FormLabel>Language</FormLabel>
+                    <Select onValueChange={field.onChange} value={field.value}>
+                      <FormControl>
+                        <SelectTrigger>
+                          <SelectValue />
+                        </SelectTrigger>
+                      </FormControl>
+                      <SelectContent>
+                        {LANGUAGE_OPTIONS.map((lang) => (
+                          <SelectItem key={lang.value} value={lang.value}>
+                            {lang.label}
+                          </SelectItem>
+                        ))}
+                      </SelectContent>
+                    </Select>
+                    <FormMessage />
+                  </FormItem>
+                )}
+              />
+
+              {/* Effects */}
+              <div className="space-y-2">
+                <FormLabel>Default Effects</FormLabel>
+                <p className="text-xs text-muted-foreground">
+                  Applied automatically to new generations with this voice.
+                </p>
+                <EffectsChainEditor
+                  value={effectsChain}
+                  onChange={(chain) => {
+                    setEffectsChain(chain);
+                    setEffectsDirty(true);
+                  }}
+                  compact
+                />
+              </div>
+
+              {/* Save */}
+              {isDirty && (
+                <Button type="submit" className="w-full" disabled={updateProfile.isPending}>
+                  {updateProfile.isPending ? 'Saving...' : 'Save Changes'}
+                </Button>
+              )}
+            </div>
+
+            {/* Samples */}
+            <div className="px-5 pb-5">
+              <SampleList profileId={profileId} />
+            </div>
+          </form>
+        </Form>
+      </div>
+    </div>
+  );
+}

app/src/components/VoicesTab/VoicesTab.tsx

@@ -1,13 +1,9 @@
 import { useQuery, useQueryClient } from '@tanstack/react-query';
-import { Edit, MoreHorizontal, Plus, Trash2, Mic } from 'lucide-react';
+import { Mic, Plus, Search, Sparkles } from 'lucide-react';
-import { useMemo, useRef } from 'react';
+import { useEffect, useMemo, useRef, useState } from 'react';
 import { Button } from '@/components/ui/button';
-import {
+import { Input } from '@/components/ui/input';
-  DropdownMenu,
+
-  DropdownMenuContent,
-  DropdownMenuItem,
-  DropdownMenuTrigger,
-} from '@/components/ui/dropdown-menu';
 import { MultiSelect } from '@/components/ui/multi-select';
 import {
   Table,
@@ -21,33 +17,46 @@ import { ProfileForm } from '@/components/VoiceProfiles/ProfileForm';
 import { apiClient } from '@/lib/api/client';
 import type { VoiceProfileResponse } from '@/lib/api/types';
 import { BOTTOM_SAFE_AREA_PADDING } from '@/lib/constants/ui';
-import { useHistory } from '@/lib/hooks/useHistory';
+import { useProfiles } from '@/lib/hooks/useProfiles';
-import { useDeleteProfile, useProfileSamples, useProfiles } from '@/lib/hooks/useProfiles';
 import { cn } from '@/lib/utils/cn';
 import { usePlayerStore } from '@/stores/playerStore';
+import { useServerStore } from '@/stores/serverStore';
 import { useUIStore } from '@/stores/uiStore';
+import { VoiceInspector } from './VoiceInspector';
 
 export function VoicesTab() {
   const { data: profiles, isLoading } = useProfiles();
-  const { data: historyData } = useHistory({ limit: 1000 });
   const queryClient = useQueryClient();
   const setDialogOpen = useUIStore((state) => state.setProfileDialogOpen);
-  const setEditingProfileId = useUIStore((state) => state.setEditingProfileId);
+  const selectedVoiceId = useUIStore((state) => state.selectedVoiceId);
-  const deleteProfile = useDeleteProfile();
+  const setSelectedVoiceId = useUIStore((state) => state.setSelectedVoiceId);
   const scrollRef = useRef<HTMLDivElement>(null);
   const audioUrl = usePlayerStore((state) => state.audioUrl);
   const isPlayerVisible = !!audioUrl;
+  const [search, setSearch] = useState('');
 
-  // Get generation counts per profile
+  const filteredProfiles = useMemo(() => {
-  const generationCounts = useMemo(() => {
+    if (!profiles) return [];
-    const counts: Record<string, number> = {};
+    if (!search.trim()) return profiles;
-    if (historyData?.items) {
+    const q = search.toLowerCase();
-      historyData.items.forEach((item) => {
+    return profiles.filter(
-        counts[item.profile_id] = (counts[item.profile_id] || 0) + 1;
+      (p) =>
-      });
+        p.name.toLowerCase().includes(q) ||
+        p.description?.toLowerCase().includes(q) ||
+        p.language.toLowerCase().includes(q),
+    );
+  }, [profiles, search]);
+
+  // Auto-select first profile if none selected
+  useEffect(() => {
+    if (!selectedVoiceId && profiles && profiles.length > 0) {
+      setSelectedVoiceId(profiles[0].id);
     }
-    return counts;
+    // Clear selection if selected profile was deleted
-  }, [historyData]);
+    if (selectedVoiceId && profiles && !profiles.find((p) => p.id === selectedVoiceId)) {
+      setSelectedVoiceId(profiles.length > 0 ? profiles[0].id : null);
+    }
+  }, [profiles, selectedVoiceId, setSelectedVoiceId]);
 
   // Get channel assignments for each profile
   const { data: channelAssignments } = useQuery({
@@ -74,17 +83,6 @@ export function VoicesTab() {
     queryFn: () => apiClient.listChannels(),
   });
 
-  const handleEdit = (profileId: string) => {
-    setEditingProfileId(profileId);
-    setDialogOpen(true);
-  };
-
-  const handleProfileDelete = async (profileId: string) => {
-    if (await confirm('Are you sure you want to delete this profile?')) {
-      deleteProfile.mutate(profileId);
-    }
-  };
-
   const handleChannelChange = async (profileId: string, channelIds: string[]) => {
     try {
       await apiClient.setProfileChannels(profileId, channelIds);
@@ -103,14 +101,26 @@ export function VoicesTab() {
   }
 
   return (
-    <div className="h-full flex flex-col relative overflow-hidden">
+    <div className="h-full flex gap-0 overflow-hidden -mx-8">
-      {/* Scroll Mask - Always visible, behind content */}
+      {/* Left: Table */}
+      <div className="flex-1 min-w-0 flex flex-col relative overflow-hidden">
+        {/* Scroll Mask */}
         <div className="absolute top-0 left-0 right-0 h-16 bg-gradient-to-b from-background to-transparent z-10 pointer-events-none" />
 
         {/* Fixed Header */}
-      <div className="absolute top-0 left-0 right-0 z-20">
+        <div className="absolute top-0 left-0 right-0 z-20 pl-8 pr-8">
-        <div className="flex items-center justify-between mb-6">
+          <div className="flex items-center gap-3 mb-6">
             <h1 className="text-2xl font-bold">Voices</h1>
+            <div className="flex-1" />
+            <div className="relative w-[240px]">
+              <Search className="absolute left-2.5 top-1/2 -translate-y-1/2 h-3.5 w-3.5 text-muted-foreground" />
+              <Input
+                placeholder="Search voices..."
+                value={search}
+                onChange={(e) => setSearch(e.target.value)}
+                className="h-10 pl-8 text-sm rounded-full focus-visible:ring-0 focus-visible:ring-offset-0"
+              />
+            </div>
             <Button onClick={() => setDialogOpen(true)}>
               <Plus className="h-4 w-4 mr-2" />
               New Voice
@@ -122,37 +132,45 @@ export function VoicesTab() {
         <div
           ref={scrollRef}
           className={cn(
-          'flex-1 overflow-y-auto pt-16 relative z-0',
+            'flex-1 overflow-y-auto overflow-x-hidden pt-16 relative z-0',
             isPlayerVisible && BOTTOM_SAFE_AREA_PADDING,
           )}
         >
-        <Table>
+          <Table className="table-fixed [&_td:first-child]:pl-8 [&_th:first-child]:pl-8">
             <TableHeader>
               <TableRow>
-              <TableHead>Name</TableHead>
+                <TableHead className="w-[30%]">Name</TableHead>
-              <TableHead>Language</TableHead>
+                <TableHead className="w-[10%]">Language</TableHead>
-              <TableHead>Generations</TableHead>
+                <TableHead className="w-[10%]">Generations</TableHead>
-              <TableHead>Samples</TableHead>
+                <TableHead className="w-[8%]">Samples</TableHead>
-              <TableHead>Channels</TableHead>
+                <TableHead className="w-[8%]">Effects</TableHead>
-              <TableHead className="w-[50px]"></TableHead>
+                <TableHead className="w-[24%]">Channels</TableHead>
+                <TableHead className="w-6"></TableHead>
               </TableRow>
             </TableHeader>
             <TableBody>
-            {profiles?.map((profile) => (
+              {filteredProfiles.map((profile) => (
                 <VoiceRow
                   key={profile.id}
                   profile={profile}
-                generationCount={generationCounts[profile.id] || 0}
+                  isSelected={selectedVoiceId === profile.id}
+                  onSelect={() => setSelectedVoiceId(profile.id)}
                   channelIds={channelAssignments?.[profile.id] || []}
                   channels={channels || []}
                   onChannelChange={(channelIds) => handleChannelChange(profile.id, channelIds)}
-                onEdit={() => handleEdit(profile.id)}
-                onDelete={() => handleProfileDelete(profile.id)}
                 />
               ))}
             </TableBody>
           </Table>
         </div>
+      </div>
+
+      {/* Right: Inspector */}
+      {selectedVoiceId && (
+        <div className="w-[340px] shrink-0 border-l border-t rounded-tl-xl bg-muted/30">
+          <VoiceInspector key={selectedVoiceId} profileId={selectedVoiceId} />
+        </div>
+      )}
 
       <ProfileForm />
     </div>
@@ -161,42 +179,46 @@ export function VoicesTab() {
 
 interface VoiceRowProps {
   profile: VoiceProfileResponse;
-  generationCount: number;
+  isSelected: boolean;
+  onSelect: () => void;
   channelIds: string[];
   channels: Array<{ id: string; name: string; is_default: boolean }>;
   onChannelChange: (channelIds: string[]) => void;
-  onEdit: () => void;
-  onDelete: () => void;
 }
 
 function VoiceRow({
   profile,
-  generationCount,
+  isSelected,
+  onSelect,
   channelIds,
   channels,
   onChannelChange,
-  onEdit,
-  onDelete,
 }: VoiceRowProps) {
-  const { data: samples } = useProfileSamples(profile.id);
+  const serverUrl = useServerStore((state) => state.serverUrl);
-  const sampleCount = samples?.length || 0;
+  const [avatarError, setAvatarError] = useState(false);
+  const avatarUrl = profile.avatar_path ? `${serverUrl}/profiles/${profile.id}/avatar` : null;
 
-  const rowLabel = `${profile.name}, ${profile.language}, ${generationCount} generations, ${sampleCount} samples. Press Enter to edit.`;
+  const enabledEffects = profile.effects_chain?.filter((e) => e.enabled) ?? [];
+  const effectsSummary = enabledEffects.map((e) => e.type).join(' → ');
 
   return (
-    <TableRow className="cursor-pointer" onClick={onEdit}>
+    <TableRow
-      <TableCell>
+      className={cn('cursor-pointer', isSelected ? 'bg-muted/50' : 'hover:bg-muted/50')}
-        <button
+      onClick={onSelect}
-          type="button"
-          className="flex w-full min-w-0 items-center gap-2 text-left focus:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 rounded"
-          aria-label={rowLabel}
-          onClick={(e) => {
-            e.stopPropagation();
-            onEdit();
-          }}
     >
-          <div className="h-8 w-8 rounded-lg bg-muted flex items-center justify-center shrink-0">
+      <TableCell>
+        <div className="flex w-full min-w-0 items-center gap-2">
+          <div className="h-8 w-8 rounded-full bg-muted flex items-center justify-center shrink-0 overflow-hidden">
+            {avatarUrl && !avatarError ? (
+              <img
+                src={avatarUrl}
+                alt={`${profile.name} avatar`}
+                className="h-full w-full object-cover"
+                onError={() => setAvatarError(true)}
+              />
+            ) : (
               <Mic className="h-4 w-4 text-muted-foreground" />
+            )}
           </div>
           <div className="min-w-0">
             <div className="font-medium truncate">{profile.name}</div>
@@ -204,11 +226,24 @@ function VoiceRow({
               <div className="text-sm text-muted-foreground truncate">{profile.description}</div>
             )}
           </div>
-        </button>
+        </div>
+      </TableCell>
+      <TableCell>{profile.language}</TableCell>
+      <TableCell>{profile.generation_count}</TableCell>
+      <TableCell>{profile.sample_count}</TableCell>
+      <TableCell>
+        {enabledEffects.length > 0 ? (
+          <span
+            className="inline-flex items-center gap-1 text-xs text-accent"
+            title={effectsSummary}
+          >
+            <Sparkles className="h-3 w-3 fill-accent" />
+            {enabledEffects.length}
+          </span>
+        ) : (
+          <span className="text-xs text-muted-foreground">—</span>
+        )}
       </TableCell>
-      <TableCell onClick={(e) => e.stopPropagation()}>{profile.language}</TableCell>
-      <TableCell onClick={(e) => e.stopPropagation()}>{generationCount}</TableCell>
-      <TableCell onClick={(e) => e.stopPropagation()}>{sampleCount}</TableCell>
       <TableCell onClick={(e) => e.stopPropagation()}>
         <MultiSelect
           options={channels.map((ch) => ({
@@ -218,28 +253,10 @@ function VoiceRow({
           value={channelIds}
           onChange={onChannelChange}
           placeholder="Select channels..."
-          className="min-w-[200px]"
+          className="w-full"
         />
       </TableCell>
-      <TableCell onClick={(e) => e.stopPropagation()}>
+      <TableCell />
-        <DropdownMenu>
-          <DropdownMenuTrigger asChild>
-            <Button variant="ghost" size="icon" aria-label={`Actions for ${profile.name}`}>
-              <MoreHorizontal className="h-4 w-4" />
-            </Button>
-          </DropdownMenuTrigger>
-          <DropdownMenuContent>
-            <DropdownMenuItem onClick={onEdit}>
-              <Edit className="h-4 w-4 mr-2" />
-              Edit
-            </DropdownMenuItem>
-            <DropdownMenuItem onClick={onDelete} className="text-destructive">
-              <Trash2 className="h-4 w-4 mr-2" />
-              Delete
-            </DropdownMenuItem>
-          </DropdownMenuContent>
-        </DropdownMenu>
-      </TableCell>
     </TableRow>
   );
 }

app/src/components/ui/dropdown-menu.tsx

@@ -1,6 +1,6 @@
-import * as React from 'react';
 import * as DropdownMenuPrimitive from '@radix-ui/react-dropdown-menu';
 import { MoreHorizontal } from 'lucide-react';
+import * as React from 'react';
 import { cn } from '@/lib/utils/cn';
 
 const DropdownMenu = DropdownMenuPrimitive.Root;
@@ -73,7 +73,7 @@ const DropdownMenuItem = React.forwardRef<
   <DropdownMenuPrimitive.Item
     ref={ref}
     className={cn(
-      'relative flex cursor-default select-none items-center rounded-sm px-2 py-1.5 text-sm outline-none transition-colors focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50',
+      'relative flex cursor-default select-none items-center rounded-sm px-2 py-1.5 text-sm outline-none focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50',
       inset && 'pl-8',
       className,
     )}
@@ -154,7 +154,9 @@ const DropdownMenuSeparator = React.forwardRef<
 DropdownMenuSeparator.displayName = DropdownMenuPrimitive.Separator.displayName;
 
 const DropdownMenuShortcut = ({ className, ...props }: React.HTMLAttributes<HTMLSpanElement>) => {
-  return <span className={cn('ml-auto text-xs tracking-widest opacity-60', className)} {...props} />;
+  return (
+    <span className={cn('ml-auto text-xs tracking-widest opacity-60', className)} {...props} />
+  );
 };
 DropdownMenuShortcut.displayName = 'DropdownMenuShortcut';
 

app/src/components/ui/select.tsx

@@ -108,7 +108,7 @@ const SelectItem = React.forwardRef<
   <SelectPrimitive.Item
     ref={ref}
     className={cn(
-      'relative flex w-full cursor-default select-none items-center rounded-sm py-1.5 pl-8 pr-2 text-sm outline-none focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50',
+      'relative flex w-full cursor-default select-none items-center rounded-sm py-1.5 pl-8 pr-2 text-sm outline-none focus:bg-accent focus:text-accent-foreground focus:[&_*]:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50',
       className,
     )}
     {...props}

app/src/components/ui/table.tsx

@@ -14,7 +14,11 @@ const TableHeader = React.forwardRef<
   HTMLTableSectionElement,
   React.HTMLAttributes<HTMLTableSectionElement>
 >(({ className, ...props }, ref) => (
-  <thead ref={ref} className={cn('[&_tr]:border-b', className)} {...props} />
+  <thead
+    ref={ref}
+    className={cn('[&_tr]:border-b [&_tr]:hover:bg-transparent', className)}
+    {...props}
+  />
 ));
 TableHeader.displayName = 'TableHeader';
 
@@ -42,10 +46,7 @@ const TableRow = React.forwardRef<HTMLTableRowElement, React.HTMLAttributes<HTML
   ({ className, ...props }, ref) => (
     <tr
       ref={ref}
-      className={cn(
+      className={cn('border-b hover:bg-muted/50 data-[state=selected]:bg-muted', className)}
-        'border-b transition-colors hover:bg-muted/50 data-[state=selected]:bg-muted',
-        className,
-      )}
       {...props}
     />
   ),

app/src/lib/api/client.ts

@@ -2,9 +2,15 @@ import type { LanguageCode } from '@/lib/constants/languages';
 import { useServerStore } from '@/stores/serverStore';
 import type {
   ActiveTasksResponse,
+  ApplyEffectsRequest,
+  AvailableEffectsResponse,
   CudaStatus,
+  EffectConfig,
+  EffectPresetCreate,
+  EffectPresetResponse,
   GenerationRequest,
   GenerationResponse,
+  GenerationVersionResponse,
   HealthResponse,
   HistoryListResponse,
   HistoryQuery,
@@ -21,6 +27,7 @@ import type {
   StoryItemReorder,
   StoryItemSplit,
   StoryItemTrim,
+  StoryItemVersionUpdate,
   StoryResponse,
   TranscriptionResponse,
   VoiceProfileCreate,
@@ -206,6 +213,18 @@ class ApiClient {
     });
   }
 
+  async regenerateGeneration(generationId: string): Promise<GenerationResponse> {
+    return this.request<GenerationResponse>(`/generate/${generationId}/regenerate`, {
+      method: 'POST',
+    });
+  }
+
+  async toggleFavorite(generationId: string): Promise<{ is_favorited: boolean }> {
+    return this.request<{ is_favorited: boolean }>(`/history/${generationId}/favorite`, {
+      method: 'POST',
+    });
+  }
+
   // History
   async listHistory(query?: HistoryQuery): Promise<HistoryListResponse> {
     const params = new URLSearchParams();
@@ -570,6 +589,17 @@ class ApiClient {
     });
   }
 
+  async setStoryItemVersion(
+    storyId: string,
+    itemId: string,
+    data: StoryItemVersionUpdate,
+  ): Promise<StoryItemDetail> {
+    return this.request<StoryItemDetail>(`/stories/${storyId}/items/${itemId}/version`, {
+      method: 'PUT',
+      body: JSON.stringify(data),
+    });
+  }
+
   async exportStoryAudio(storyId: string): Promise<Blob> {
     const url = `${this.getBaseUrl()}/stories/${storyId}/export-audio`;
     const response = await fetch(url);
@@ -583,6 +613,103 @@ class ApiClient {
 
     return response.blob();
   }
+
+  // Effects & Versions
+  async getAvailableEffects(): Promise<AvailableEffectsResponse> {
+    return this.request<AvailableEffectsResponse>('/effects/available');
+  }
+
+  async listEffectPresets(): Promise<EffectPresetResponse[]> {
+    return this.request<EffectPresetResponse[]>('/effects/presets');
+  }
+
+  async createEffectPreset(data: EffectPresetCreate): Promise<EffectPresetResponse> {
+    return this.request<EffectPresetResponse>('/effects/presets', {
+      method: 'POST',
+      body: JSON.stringify(data),
+    });
+  }
+
+  async updateEffectPreset(
+    presetId: string,
+    data: { name?: string; description?: string; effects_chain?: EffectConfig[] },
+  ): Promise<EffectPresetResponse> {
+    return this.request<EffectPresetResponse>(`/effects/presets/${presetId}`, {
+      method: 'PUT',
+      body: JSON.stringify(data),
+    });
+  }
+
+  async deleteEffectPreset(presetId: string): Promise<void> {
+    await this.request<void>(`/effects/presets/${presetId}`, {
+      method: 'DELETE',
+    });
+  }
+
+  async listGenerationVersions(generationId: string): Promise<GenerationVersionResponse[]> {
+    return this.request<GenerationVersionResponse[]>(`/generations/${generationId}/versions`);
+  }
+
+  async applyEffectsToGeneration(
+    generationId: string,
+    data: ApplyEffectsRequest,
+  ): Promise<GenerationVersionResponse> {
+    return this.request<GenerationVersionResponse>(
+      `/generations/${generationId}/versions/apply-effects`,
+      {
+        method: 'POST',
+        body: JSON.stringify(data),
+      },
+    );
+  }
+
+  async setDefaultVersion(
+    generationId: string,
+    versionId: string,
+  ): Promise<GenerationVersionResponse> {
+    return this.request<GenerationVersionResponse>(
+      `/generations/${generationId}/versions/${versionId}/set-default`,
+      { method: 'PUT' },
+    );
+  }
+
+  async deleteGenerationVersion(generationId: string, versionId: string): Promise<void> {
+    await this.request<void>(`/generations/${generationId}/versions/${versionId}`, {
+      method: 'DELETE',
+    });
+  }
+
+  getVersionAudioUrl(versionId: string): string {
+    return `${this.getBaseUrl()}/audio/version/${versionId}`;
+  }
+
+  async updateProfileEffects(
+    profileId: string,
+    effectsChain: EffectConfig[] | null,
+  ): Promise<VoiceProfileResponse> {
+    return this.request<VoiceProfileResponse>(`/profiles/${profileId}/effects`, {
+      method: 'PUT',
+      body: JSON.stringify({ effects_chain: effectsChain }),
+    });
+  }
+
+  async previewEffects(generationId: string, effectsChain: EffectConfig[]): Promise<Blob> {
+    const url = `${this.getBaseUrl()}/effects/preview/${generationId}`;
+    const response = await fetch(url, {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ effects_chain: effectsChain }),
+    });
+
+    if (!response.ok) {
+      const error = await response.json().catch(() => ({
+        detail: response.statusText,
+      }));
+      throw new Error(error.detail || `HTTP error! status: ${response.status}`);
+    }
+
+    return response.blob();
+  }
 }
 
 export const apiClient = new ApiClient();

app/src/lib/api/types.ts

@@ -13,6 +13,9 @@ export interface VoiceProfileResponse {
   description?: string;
   language: string;
   avatar_path?: string;
+  effects_chain?: EffectConfig[];
+  generation_count: number;
+  sample_count: number;
   created_at: string;
   updated_at: string;
 }
@@ -28,6 +31,12 @@ export interface ProfileSampleResponse {
   reference_text: string;
 }
 
+export interface EffectConfig {
+  type: string;
+  enabled: boolean;
+  params: Record<string, number>;
+}
+
 export interface GenerationRequest {
   profile_id: string;
   text: string;
@@ -39,6 +48,18 @@ export interface GenerationRequest {
   max_chunk_chars?: number;
   crossfade_ms?: number;
   normalize?: boolean;
+  effects_chain?: EffectConfig[];
+}
+
+export interface GenerationVersionResponse {
+  id: string;
+  generation_id: string;
+  label: string;
+  audio_path: string;
+  effects_chain?: EffectConfig[];
+  source_version_id?: string;
+  is_default: boolean;
+  created_at: string;
 }
 
 export interface GenerationResponse {
@@ -54,7 +75,10 @@ export interface GenerationResponse {
   model_size?: string;
   status: 'generating' | 'completed' | 'failed';
   error?: string;
+  is_favorited?: boolean;
   created_at: string;
+  versions?: GenerationVersionResponse[];
+  active_version_id?: string;
 }
 
 export interface HistoryQuery {
@@ -66,6 +90,8 @@ export interface HistoryQuery {
 
 export interface HistoryResponse extends GenerationResponse {
   profile_name: string;
+  versions?: GenerationVersionResponse[];
+  active_version_id?: string;
 }
 
 export interface HistoryListResponse {
@@ -199,6 +225,7 @@ export interface StoryItemDetail {
   id: string;
   story_id: string;
   generation_id: string;
+  version_id?: string;
   start_time_ms: number;
   track: number;
   trim_start_ms: number;
@@ -213,6 +240,12 @@ export interface StoryItemDetail {
   seed?: number;
   instruct?: string;
   generation_created_at: string;
+  versions?: GenerationVersionResponse[];
+  active_version_id?: string;
+}
+
+export interface StoryItemVersionUpdate {
+  version_id: string | null;
 }
 
 export interface StoryDetailResponse {
@@ -256,3 +289,52 @@ export interface StoryItemTrim {
 export interface StoryItemSplit {
   split_time_ms: number;
 }
+
+// Effects
+
+export interface EffectPresetResponse {
+  id: string;
+  name: string;
+  description?: string;
+  effects_chain: EffectConfig[];
+  is_builtin: boolean;
+  created_at: string;
+}
+
+export interface EffectPresetCreate {
+  name: string;
+  description?: string;
+  effects_chain: EffectConfig[];
+}
+
+export interface EffectPresetUpdate {
+  name?: string;
+  description?: string;
+  effects_chain?: EffectConfig[];
+}
+
+export interface AvailableEffectParam {
+  default: number;
+  min: number;
+  max: number;
+  step: number;
+  description: string;
+}
+
+export interface AvailableEffect {
+  type: string;
+  label: string;
+  description: string;
+  params: Record<string, AvailableEffectParam>;
+}
+
+export interface AvailableEffectsResponse {
+  effects: AvailableEffect[];
+}
+
+export interface ApplyEffectsRequest {
+  effects_chain: EffectConfig[];
+  source_version_id?: string;
+  label?: string;
+  set_as_default?: boolean;
+}

app/src/lib/constants/ui.ts

@@ -2,11 +2,14 @@
  * UI layout constants for safe area padding
  */
 
+const isWindows = typeof navigator !== 'undefined' && navigator.userAgent.includes('Windows');
+
 /**
  * Top safe area padding - height of the drag region bar
- * Corresponds to Tailwind's pt-12 (3rem / 48px)
+ * On macOS this accounts for the overlay titlebar (48px).
+ * On Windows the native title bar is outside the webview, so no padding is needed.
  */
-export const TOP_SAFE_AREA_PADDING = 'pt-12';
+export const TOP_SAFE_AREA_PADDING = isWindows ? 'pt-8' : 'pt-12';
 
 /**
  * Bottom safe area padding - height of the audio player

app/src/lib/hooks/useGenerationForm.ts

@@ -4,6 +4,7 @@ import { useForm } from 'react-hook-form';
 import * as z from 'zod';
 import { useToast } from '@/components/ui/use-toast';
 import { apiClient } from '@/lib/api/client';
+import type { EffectConfig } from '@/lib/api/types';
 import { LANGUAGE_CODES, type LanguageCode } from '@/lib/constants/languages';
 import { useGeneration } from '@/lib/hooks/useGeneration';
 import { useModelDownloadToast } from '@/lib/hooks/useModelDownloadToast';
@@ -11,7 +12,7 @@ import { useGenerationStore } from '@/stores/generationStore';
 import { useServerStore } from '@/stores/serverStore';
 
 const generationSchema = z.object({
-  text: z.string().min(1, 'Text is required').max(50000),
+  text: z.string().min(1, '').max(50000),
   language: z.enum(LANGUAGE_CODES as [LanguageCode, ...LanguageCode[]]),
   seed: z.number().int().optional(),
   modelSize: z.enum(['1.7B', '0.6B']).optional(),
@@ -24,6 +25,7 @@ export type GenerationFormValues = z.infer<typeof generationSchema>;
 interface UseGenerationFormOptions {
   onSuccess?: (generationId: string) => void;
   defaultValues?: Partial<GenerationFormValues>;
+  getEffectsChain?: () => EffectConfig[] | undefined;
 }
 
 export function useGenerationForm(options: UseGenerationFormOptions = {}) {
@@ -103,6 +105,7 @@ export function useGenerationForm(options: UseGenerationFormOptions = {}) {
       }
 
       const isQwen = engine === 'qwen';
+      const effectsChain = options.getEffectsChain?.();
       // This now returns immediately with status="generating"
       const result = await generation.mutateAsync({
         profile_id: selectedProfileId,
@@ -115,6 +118,7 @@ export function useGenerationForm(options: UseGenerationFormOptions = {}) {
         max_chunk_chars: maxChunkChars,
         crossfade_ms: crossfadeMs,
         normalize: normalizeAudio,
+        effects_chain: effectsChain?.length ? effectsChain : undefined,
       });
 
       // Track this generation for SSE status updates

app/src/lib/hooks/useStories.ts

@@ -1,6 +1,15 @@
 import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query';
 import { apiClient } from '@/lib/api/client';
-import type { StoryCreate, StoryItemCreate, StoryItemBatchUpdate, StoryItemReorder, StoryItemMove, StoryItemTrim, StoryItemSplit } from '@/lib/api/types';
+import type {
+  StoryCreate,
+  StoryItemBatchUpdate,
+  StoryItemCreate,
+  StoryItemMove,
+  StoryItemReorder,
+  StoryItemSplit,
+  StoryItemTrim,
+  StoryItemVersionUpdate,
+} from '@/lib/api/types';
 import { usePlatform } from '@/platform/PlatformContext';
 
 export function useStories() {
@@ -109,8 +118,15 @@ export function useMoveStoryItem() {
   const queryClient = useQueryClient();
 
   return useMutation({
-    mutationFn: ({ storyId, itemId, data }: { storyId: string; itemId: string; data: StoryItemMove }) =>
+    mutationFn: ({
-      apiClient.moveStoryItem(storyId, itemId, data),
+      storyId,
+      itemId,
+      data,
+    }: {
+      storyId: string;
+      itemId: string;
+      data: StoryItemMove;
+    }) => apiClient.moveStoryItem(storyId, itemId, data),
     onSuccess: (_, variables) => {
       queryClient.invalidateQueries({ queryKey: ['stories'] });
       queryClient.invalidateQueries({ queryKey: ['stories', variables.storyId] });
@@ -122,8 +138,15 @@ export function useTrimStoryItem() {
   const queryClient = useQueryClient();
 
   return useMutation({
-    mutationFn: ({ storyId, itemId, data }: { storyId: string; itemId: string; data: StoryItemTrim }) =>
+    mutationFn: ({
-      apiClient.trimStoryItem(storyId, itemId, data),
+      storyId,
+      itemId,
+      data,
+    }: {
+      storyId: string;
+      itemId: string;
+      data: StoryItemTrim;
+    }) => apiClient.trimStoryItem(storyId, itemId, data),
     onSuccess: (_, variables) => {
       queryClient.invalidateQueries({ queryKey: ['stories'] });
       queryClient.invalidateQueries({ queryKey: ['stories', variables.storyId] });
@@ -135,8 +158,15 @@ export function useSplitStoryItem() {
   const queryClient = useQueryClient();
 
   return useMutation({
-    mutationFn: ({ storyId, itemId, data }: { storyId: string; itemId: string; data: StoryItemSplit }) =>
+    mutationFn: ({
-      apiClient.splitStoryItem(storyId, itemId, data),
+      storyId,
+      itemId,
+      data,
+    }: {
+      storyId: string;
+      itemId: string;
+      data: StoryItemSplit;
+    }) => apiClient.splitStoryItem(storyId, itemId, data),
     onSuccess: (_, variables) => {
       queryClient.invalidateQueries({ queryKey: ['stories'] });
       queryClient.invalidateQueries({ queryKey: ['stories', variables.storyId] });
@@ -157,6 +187,26 @@ export function useDuplicateStoryItem() {
   });
 }
 
+export function useSetStoryItemVersion() {
+  const queryClient = useQueryClient();
+
+  return useMutation({
+    mutationFn: ({
+      storyId,
+      itemId,
+      data,
+    }: {
+      storyId: string;
+      itemId: string;
+      data: StoryItemVersionUpdate;
+    }) => apiClient.setStoryItemVersion(storyId, itemId, data),
+    onSuccess: (_, variables) => {
+      queryClient.invalidateQueries({ queryKey: ['stories'] });
+      queryClient.invalidateQueries({ queryKey: ['stories', variables.storyId] });
+    },
+  });
+}
+
 export function useExportStoryAudio() {
   const platform = usePlatform();
 
@@ -165,7 +215,10 @@ export function useExportStoryAudio() {
       const blob = await apiClient.exportStoryAudio(storyId);
 
       // Create safe filename
-      const safeName = storyName.substring(0, 50).replace(/[^a-z0-9]/gi, '-').toLowerCase();
+      const safeName = storyName
+        .substring(0, 50)
+        .replace(/[^a-z0-9]/gi, '-')
+        .toLowerCase();
       const filename = `${safeName || 'story'}.wav`;
 
       await platform.filesystem.saveFile(filename, blob, [

app/src/lib/hooks/useStoryPlayback.ts

@@ -70,6 +70,16 @@ export function useStoryPlayback(items: StoryItemDetail[] | undefined) {
     }
   }, []);
 
+  // Resolve the audio buffer key and URL for an item.
+  // When a version_id is pinned, use that version's audio; otherwise use the generation default.
+  const getAudioKey = (item: StoryItemDetail) =>
+    item.version_id ? `v:${item.version_id}` : item.generation_id;
+
+  const getAudioUrlForItem = (item: StoryItemDetail) =>
+    item.version_id
+      ? apiClient.getVersionAudioUrl(item.version_id)
+      : apiClient.getAudioUrl(item.generation_id);
+
   // Preload audio files as AudioBuffers
   useEffect(() => {
     if (!items || items.length === 0) {
@@ -78,12 +88,12 @@ export function useStoryPlayback(items: StoryItemDetail[] | undefined) {
       return;
     }
 
-    const currentIds = new Set(items.map((item) => item.generation_id));
+    const currentKeys = new Set(items.map(getAudioKey));
     const audioContext = getAudioContext();
 
     // Remove buffers for items that no longer exist
     for (const [id] of audioBuffersRef.current) {
-      if (!currentIds.has(id)) {
+      if (!currentKeys.has(id)) {
         audioBuffersRef.current.delete(id);
       }
     }
@@ -91,24 +101,25 @@ export function useStoryPlayback(items: StoryItemDetail[] | undefined) {
     // Preload audio for new items
     const preloadPromises: Promise<void>[] = [];
     for (const item of items) {
-      if (!audioBuffersRef.current.has(item.generation_id)) {
+      const key = getAudioKey(item);
-        const audioUrl = apiClient.getAudioUrl(item.generation_id);
+      if (!audioBuffersRef.current.has(key)) {
-        console.log('[StoryPlayback] Preloading audio buffer:', item.generation_id);
+        const audioUrl = getAudioUrlForItem(item);
+        console.log('[StoryPlayback] Preloading audio buffer:', key);
 
         const preloadPromise = fetch(audioUrl)
           .then((response) => response.arrayBuffer())
           .then((arrayBuffer) => audioContext.decodeAudioData(arrayBuffer))
           .then((audioBuffer) => {
-            audioBuffersRef.current.set(item.generation_id, audioBuffer);
+            audioBuffersRef.current.set(key, audioBuffer);
             console.log(
               '[StoryPlayback] Preloaded buffer:',
-              item.generation_id,
+              key,
               'duration:',
               audioBuffer.duration,
             );
           })
           .catch((err) => {
-            console.error('[StoryPlayback] Failed to preload audio:', item.generation_id, err);
+            console.error('[StoryPlayback] Failed to preload audio:', key, err);
           });
 
         preloadPromises.push(preloadPromise);
@@ -216,9 +227,10 @@ export function useStoryPlayback(items: StoryItemDetail[] | undefined) {
       // Schedule new sources for items that should be playing
       for (const item of shouldBePlaying) {
         if (!activeSourcesRef.current.has(item.id)) {
-          const buffer = audioBuffersRef.current.get(item.generation_id);
+          const bufferKey = getAudioKey(item);
+          const buffer = audioBuffersRef.current.get(bufferKey);
           if (!buffer) {
-            console.warn('[StoryPlayback] Buffer not loaded for:', item.generation_id);
+            console.warn('[StoryPlayback] Buffer not loaded for:', bufferKey);
             continue;
           }
 

app/src/platform/types.ts

@@ -10,6 +10,8 @@ export interface FileFilter {
 
 export interface PlatformFilesystem {
   saveFile(filename: string, blob: Blob, filters?: FileFilter[]): Promise<void>;
+  openPath(path: string): Promise<void>;
+  pickDirectory(title: string): Promise<string | null>;
 }
 
 export interface UpdateStatus {

app/src/router.tsx

@@ -1,6 +1,7 @@
 import { createRootRoute, createRoute, createRouter, Outlet } from '@tanstack/react-router';
 import { AppFrame } from '@/components/AppFrame/AppFrame';
 import { AudioTab } from '@/components/AudioTab/AudioTab';
+import { EffectsTab } from '@/components/EffectsTab/EffectsTab';
 import { MainEditor } from '@/components/MainEditor/MainEditor';
 import { ModelsTab } from '@/components/ModelsTab/ModelsTab';
 import { ServerTab } from '@/components/ServerTab/ServerTab';
@@ -105,6 +106,13 @@ const audioRoute = createRoute({
   component: AudioTab,
 });
 
+// Effects route
+const effectsRoute = createRoute({
+  getParentRoute: () => rootRoute,
+  path: '/effects',
+  component: EffectsTab,
+});
+
 // Models route
 const modelsRoute = createRoute({
   getParentRoute: () => rootRoute,
@@ -125,6 +133,7 @@ const routeTree = rootRoute.addChildren([
   storiesRoute,
   voicesRoute,
   audioRoute,
+  effectsRoute,
   modelsRoute,
   serverRoute,
 ]);

app/src/stores/effectsStore.ts

@@ -0,0 +1,26 @@
+import { create } from 'zustand';
+import type { EffectConfig } from '@/lib/api/types';
+
+interface EffectsStore {
+  selectedPresetId: string | null;
+  setSelectedPresetId: (id: string | null) => void;
+
+  // Working chain for the detail panel (editing a preset or building a new one)
+  workingChain: EffectConfig[];
+  setWorkingChain: (chain: EffectConfig[]) => void;
+
+  // Track if editing an existing preset vs creating new
+  isCreatingNew: boolean;
+  setIsCreatingNew: (v: boolean) => void;
+}
+
+export const useEffectsStore = create<EffectsStore>((set) => ({
+  selectedPresetId: null,
+  setSelectedPresetId: (id) => set({ selectedPresetId: id, isCreatingNew: false }),
+
+  workingChain: [],
+  setWorkingChain: (chain) => set({ workingChain: chain }),
+
+  isCreatingNew: false,
+  setIsCreatingNew: (v) => set({ isCreatingNew: v, ...(v && { selectedPresetId: null }) }),
+}));

app/src/stores/uiStore.ts

@@ -31,6 +31,10 @@ interface UIStore {
   selectedProfileId: string | null;
   setSelectedProfileId: (id: string | null) => void;
 
+  // Selected voice in Voices tab inspector
+  selectedVoiceId: string | null;
+  setSelectedVoiceId: (id: string | null) => void;
+
   // Profile form draft (for persisting create voice modal state)
   profileFormDraft: ProfileFormDraft | null;
   setProfileFormDraft: (draft: ProfileFormDraft | null) => void;
@@ -55,6 +59,9 @@ export const useUIStore = create<UIStore>((set) => ({
   selectedProfileId: null,
   setSelectedProfileId: (id) => set({ selectedProfileId: id }),
 
+  selectedVoiceId: null,
+  setSelectedVoiceId: (id) => set({ selectedVoiceId: id }),
+
   profileFormDraft: null,
   setProfileFormDraft: (draft) => set({ profileFormDraft: draft }),
 

backend/__init__.py

@@ -1,3 +1,3 @@
 # Backend package
 
-__version__ = "0.1.13"
+__version__ = "0.2.0"

backend/build_binary.py

@@ -90,6 +90,18 @@ def build_server(cuda=False):
             '--hidden-import', 'torch.cuda',
             '--hidden-import', 'torch.backends.cudnn',
         ])
+    else:
+        # Exclude NVIDIA CUDA packages from CPU-only builds to keep binary under 4GB.
+        # On Linux, pip may pull CUDA-enabled PyTorch by default which includes ~3GB
+        # of NVIDIA shared libraries that PyInstaller would bundle.
+        nvidia_packages = [
+            'nvidia', 'nvidia.cublas', 'nvidia.cuda_cupti', 'nvidia.cuda_nvrtc',
+            'nvidia.cuda_runtime', 'nvidia.cudnn', 'nvidia.cufft', 'nvidia.curand',
+            'nvidia.cusolver', 'nvidia.cusparse', 'nvidia.nccl', 'nvidia.nvjitlink',
+            'nvidia.nvtx',
+        ]
+        for pkg in nvidia_packages:
+            args.extend(['--exclude-module', pkg])
 
     # Add MLX-specific imports if building on Apple Silicon (never for CUDA builds)
     if is_apple_silicon() and not cuda:

backend/database.py

@@ -23,6 +23,7 @@ class VoiceProfile(Base):
     description = Column(Text)
     language = Column(String, default="en")
     avatar_path = Column(String, nullable=True)
+    effects_chain = Column(Text, nullable=True)  # JSON-serialized default effects chain
     created_at = Column(DateTime, default=datetime.utcnow)
     updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
 
@@ -53,6 +54,7 @@ class Generation(Base):
     model_size = Column(String, nullable=True)
     status = Column(String, default="completed")  # generating, completed, failed
     error = Column(Text, nullable=True)
+    is_favorited = Column(Boolean, default=False)
     created_at = Column(DateTime, default=datetime.utcnow)
 
 
@@ -74,6 +76,7 @@ class StoryItem(Base):
     id = Column(String, primary_key=True, default=lambda: str(uuid.uuid4()))
     story_id = Column(String, ForeignKey("stories.id"), nullable=False)
     generation_id = Column(String, ForeignKey("generations.id"), nullable=False)
+    version_id = Column(String, ForeignKey("generation_versions.id"), nullable=True)  # Pin to specific version, null = use generation default
     start_time_ms = Column(Integer, nullable=False, default=0)  # Milliseconds from story start
     track = Column(Integer, nullable=False, default=0)  # Track number (0 = main track)
     trim_start_ms = Column(Integer, nullable=False, default=0)  # Milliseconds trimmed from start
@@ -92,6 +95,33 @@ class Project(Base):
     updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
 
 
+class GenerationVersion(Base):
+    """A version of a generation's audio (clean, processed, alternate takes)."""
+    __tablename__ = "generation_versions"
+
+    id = Column(String, primary_key=True, default=lambda: str(uuid.uuid4()))
+    generation_id = Column(String, ForeignKey("generations.id"), nullable=False)
+    label = Column(String, nullable=False)  # "clean", "processed", or user-defined
+    audio_path = Column(String, nullable=False)
+    effects_chain = Column(Text, nullable=True)  # JSON-serialized effects config, null for clean
+    source_version_id = Column(String, ForeignKey("generation_versions.id"), nullable=True)  # Which version was used as input
+    is_default = Column(Boolean, default=False)
+    created_at = Column(DateTime, default=datetime.utcnow)
+
+
+class EffectPreset(Base):
+    """Saved effect chain preset."""
+    __tablename__ = "effect_presets"
+
+    id = Column(String, primary_key=True, default=lambda: str(uuid.uuid4()))
+    name = Column(String, unique=True, nullable=False)
+    description = Column(Text, nullable=True)
+    effects_chain = Column(Text, nullable=False)  # JSON-serialized effects config
+    is_builtin = Column(Boolean, default=False)
+    sort_order = Column(Integer, default=100)
+    created_at = Column(DateTime, default=datetime.utcnow)
+
+
 class AudioChannel(Base):
     """Audio channel (bus) database model."""
     __tablename__ = "audio_channels"
@@ -169,6 +199,12 @@ def init_db():
     finally:
         db.close()
 
+    # Backfill: create "clean" GenerationVersion entries for existing generations
+    _backfill_generation_versions()
+
+    # Seed built-in effect presets
+    _seed_builtin_presets()
+
 
 def _run_migrations(engine):
     """Run database migrations."""
@@ -322,6 +358,125 @@ def _run_migrations(engine):
                 conn.commit()
                 print("Added model_size column to generations")
 
+    # Migration: Add effects_chain to profiles table
+    if 'profiles' in inspector.get_table_names():
+        columns = {col['name'] for col in inspector.get_columns('profiles')}
+        if 'effects_chain' not in columns:
+            print("Migrating profiles: adding effects_chain column")
+            with engine.connect() as conn:
+                conn.execute(text("ALTER TABLE profiles ADD COLUMN effects_chain TEXT"))
+                conn.commit()
+                print("Added effects_chain column to profiles")
+
+    # Migration: Add sort_order to effect_presets table
+    if 'effect_presets' in inspector.get_table_names():
+        columns = {col['name'] for col in inspector.get_columns('effect_presets')}
+        if 'sort_order' not in columns:
+            print("Migrating effect_presets: adding sort_order column")
+            with engine.connect() as conn:
+                conn.execute(text("ALTER TABLE effect_presets ADD COLUMN sort_order INTEGER DEFAULT 100"))
+                conn.commit()
+                print("Added sort_order column to effect_presets")
+
+    # Migration: Add version_id column to story_items table
+    if 'story_items' in inspector.get_table_names():
+        columns = {col['name'] for col in inspector.get_columns('story_items')}
+        if 'version_id' not in columns:
+            print("Migrating story_items: adding version_id column")
+            with engine.connect() as conn:
+                conn.execute(text("ALTER TABLE story_items ADD COLUMN version_id VARCHAR"))
+                conn.commit()
+                print("Added version_id column to story_items")
+
+    # Migration: Add source_version_id to generation_versions table
+    if 'generation_versions' in inspector.get_table_names():
+        columns = {col['name'] for col in inspector.get_columns('generation_versions')}
+        if 'source_version_id' not in columns:
+            print("Migrating generation_versions: adding source_version_id column")
+            with engine.connect() as conn:
+                conn.execute(text("ALTER TABLE generation_versions ADD COLUMN source_version_id VARCHAR"))
+                conn.commit()
+                print("Added source_version_id column to generation_versions")
+
+    if 'generations' in inspector.get_table_names():
+        columns = {col['name'] for col in inspector.get_columns('generations')}
+        if 'is_favorited' not in columns:
+            print("Migrating generations: adding is_favorited column")
+            with engine.connect() as conn:
+                conn.execute(text("ALTER TABLE generations ADD COLUMN is_favorited BOOLEAN DEFAULT 0"))
+                conn.commit()
+                print("Added is_favorited column to generations")
+
+    # Migration: Create generation_versions for existing generations
+    # (populate after tables are created, handled in init_db)
+
+
+def _backfill_generation_versions():
+    """Create 'clean' version entries for existing generations that don't have any."""
+    db = SessionLocal()
+    try:
+        from pathlib import Path as _Path
+
+        # Find generations that have no version entries
+        existing_version_gen_ids = {
+            row[0] for row in db.query(GenerationVersion.generation_id).all()
+        }
+        generations = db.query(Generation).filter(
+            Generation.status == "completed",
+            Generation.audio_path.isnot(None),
+            Generation.audio_path != "",
+        ).all()
+
+        count = 0
+        for gen in generations:
+            if gen.id in existing_version_gen_ids:
+                continue
+            if not _Path(gen.audio_path).exists():
+                continue
+            version = GenerationVersion(
+                id=str(uuid.uuid4()),
+                generation_id=gen.id,
+                label="clean",
+                audio_path=gen.audio_path,
+                effects_chain=None,
+                is_default=True,
+            )
+            db.add(version)
+            count += 1
+
+        if count > 0:
+            db.commit()
+            print(f"Backfilled {count} generation version entries")
+    finally:
+        db.close()
+
+
+def _seed_builtin_presets():
+    """Ensure built-in effect presets exist in the database."""
+    import json
+    from .utils.effects import BUILTIN_PRESETS
+
+    db = SessionLocal()
+    try:
+        for idx, (key, preset_data) in enumerate(BUILTIN_PRESETS.items()):
+            sort_order = preset_data.get("sort_order", idx)
+            existing = db.query(EffectPreset).filter_by(name=preset_data["name"]).first()
+            if not existing:
+                preset = EffectPreset(
+                    id=str(uuid.uuid4()),
+                    name=preset_data["name"],
+                    description=preset_data.get("description"),
+                    effects_chain=json.dumps(preset_data["effects_chain"]),
+                    is_builtin=True,
+                    sort_order=sort_order,
+                )
+                db.add(preset)
+            elif existing.sort_order != sort_order:
+                existing.sort_order = sort_order
+        db.commit()
+    finally:
+        db.close()
+
 
 def get_db():
     """Get database session (generator for dependency injection)."""

backend/effects.py

@@ -0,0 +1,120 @@
+"""
+Effect presets CRUD operations.
+"""
+
+from __future__ import annotations
+
+import json
+import uuid
+from typing import List, Optional
+
+from sqlalchemy.orm import Session
+from sqlalchemy.exc import IntegrityError
+
+from .database import EffectPreset as DBEffectPreset
+from .models import EffectPresetResponse, EffectPresetCreate, EffectPresetUpdate, EffectConfig
+
+
+def _preset_response(p: DBEffectPreset) -> EffectPresetResponse:
+    """Convert a DB preset row to a Pydantic response."""
+    effects_chain = [EffectConfig(**e) for e in json.loads(p.effects_chain)]
+    return EffectPresetResponse(
+        id=p.id,
+        name=p.name,
+        description=p.description,
+        effects_chain=effects_chain,
+        is_builtin=p.is_builtin or False,
+        created_at=p.created_at,
+    )
+
+
+def list_presets(db: Session) -> List[EffectPresetResponse]:
+    """List all effect presets (built-in + user-created)."""
+    presets = db.query(DBEffectPreset).order_by(DBEffectPreset.sort_order, DBEffectPreset.name).all()
+    return [_preset_response(p) for p in presets]
+
+
+def get_preset(preset_id: str, db: Session) -> Optional[EffectPresetResponse]:
+    """Get a preset by ID."""
+    p = db.query(DBEffectPreset).filter_by(id=preset_id).first()
+    if not p:
+        return None
+    return _preset_response(p)
+
+
+def get_preset_by_name(name: str, db: Session) -> Optional[EffectPresetResponse]:
+    """Get a preset by name."""
+    p = db.query(DBEffectPreset).filter_by(name=name).first()
+    if not p:
+        return None
+    return _preset_response(p)
+
+
+def create_preset(data: EffectPresetCreate, db: Session) -> EffectPresetResponse:
+    """Create a new user effect preset."""
+    from .utils.effects import validate_effects_chain
+
+    chain_dicts = [e.model_dump() for e in data.effects_chain]
+    error = validate_effects_chain(chain_dicts)
+    if error:
+        raise ValueError(error)
+
+    # Check for duplicate name before insert
+    existing = db.query(DBEffectPreset).filter_by(name=data.name).first()
+    if existing:
+        raise ValueError(f"A preset named '{data.name}' already exists")
+
+    preset = DBEffectPreset(
+        id=str(uuid.uuid4()),
+        name=data.name,
+        description=data.description,
+        effects_chain=json.dumps(chain_dicts),
+        is_builtin=False,
+    )
+    db.add(preset)
+    try:
+        db.commit()
+    except IntegrityError:
+        db.rollback()
+        raise ValueError(f"A preset named '{data.name}' already exists")
+    db.refresh(preset)
+    return _preset_response(preset)
+
+
+def update_preset(preset_id: str, data: EffectPresetUpdate, db: Session) -> Optional[EffectPresetResponse]:
+    """Update a user effect preset. Cannot modify built-in presets."""
+    preset = db.query(DBEffectPreset).filter_by(id=preset_id).first()
+    if not preset:
+        return None
+    if preset.is_builtin:
+        raise ValueError("Cannot modify built-in presets")
+
+    if data.name is not None:
+        preset.name = data.name
+    if data.description is not None:
+        preset.description = data.description
+    if data.effects_chain is not None:
+        from .utils.effects import validate_effects_chain
+
+        chain_dicts = [e.model_dump() for e in data.effects_chain]
+        error = validate_effects_chain(chain_dicts)
+        if error:
+            raise ValueError(error)
+        preset.effects_chain = json.dumps(chain_dicts)
+
+    db.commit()
+    db.refresh(preset)
+    return _preset_response(preset)
+
+
+def delete_preset(preset_id: str, db: Session) -> bool:
+    """Delete a user effect preset. Cannot delete built-in presets."""
+    preset = db.query(DBEffectPreset).filter_by(id=preset_id).first()
+    if not preset:
+        return False
+    if preset.is_builtin:
+        raise ValueError("Cannot delete built-in presets")
+
+    db.delete(preset)
+    db.commit()
+    return True

backend/export_import.py

@@ -13,7 +13,7 @@ from typing import Optional
 from sqlalchemy.orm import Session
 
 from .models import VoiceProfileResponse
-from .database import VoiceProfile as DBVoiceProfile, ProfileSample as DBProfileSample, Generation as DBGeneration
+from .database import VoiceProfile as DBVoiceProfile, ProfileSample as DBProfileSample, Generation as DBGeneration, GenerationVersion as DBGenerationVersion
 from .profiles import create_profile, add_profile_sample
 from .models import VoiceProfileCreate
 from . import config
@@ -269,16 +269,33 @@ def export_generation_to_zip(generation_id: str, db: Session) -> bytes:
     if not profile:
         raise ValueError(f"Profile {generation.profile_id} not found")
     
-    # Get audio file
+    # Get all versions for this generation
-    audio_path = Path(generation.audio_path)
+    versions = (
-    if not audio_path.exists():
+        db.query(DBGenerationVersion)
-        raise ValueError(f"Audio file not found: {audio_path}")
+        .filter_by(generation_id=generation_id)
+        .order_by(DBGenerationVersion.created_at)
+        .all()
+    )
 
     # Create ZIP in memory
     zip_buffer = io.BytesIO()
     
     with zipfile.ZipFile(zip_buffer, 'w', zipfile.ZIP_DEFLATED) as zip_file:
-        # Create manifest.json
+        # Build version manifest entries
+        version_entries = []
+        for v in versions:
+            v_path = Path(v.audio_path)
+            effects_chain = None
+            if v.effects_chain:
+                effects_chain = json.loads(v.effects_chain)
+            version_entries.append({
+                "id": v.id,
+                "label": v.label,
+                "is_default": v.is_default,
+                "effects_chain": effects_chain,
+                "filename": v_path.name,
+            })
+
         manifest = {
             "version": "1.0",
             "generation": {
@@ -295,13 +312,22 @@ def export_generation_to_zip(generation_id: str, db: Session) -> bytes:
                 "name": profile.name,
                 "description": profile.description,
                 "language": profile.language,
-            }
+            },
+            "versions": version_entries,
         }
         zip_file.writestr("manifest.json", json.dumps(manifest, indent=2))
         
-        # Add audio file
+        # Add all version audio files
-        filename = audio_path.name
+        for v in versions:
-        zip_file.write(audio_path, f"audio/{filename}")
+            v_path = Path(v.audio_path)
+            if v_path.exists():
+                zip_file.write(v_path, f"audio/{v_path.name}")
+
+        # Fallback: if no versions exist, include the generation's main audio
+        if not versions:
+            audio_path = Path(generation.audio_path)
+            if audio_path.exists():
+                zip_file.write(audio_path, f"audio/{audio_path.name}")
     
     zip_buffer.seek(0)
     return zip_buffer.read()

backend/history.py

@@ -10,8 +10,8 @@ from pathlib import Path
 from sqlalchemy.orm import Session
 from sqlalchemy import or_
 
-from .models import GenerationRequest, GenerationResponse, HistoryQuery, HistoryResponse, HistoryListResponse
+from .models import GenerationRequest, GenerationResponse, HistoryQuery, HistoryResponse, HistoryListResponse, GenerationVersionResponse, EffectConfig
-from .database import Generation as DBGeneration, VoiceProfile as DBVoiceProfile
+from .database import Generation as DBGeneration, GenerationVersion as DBGenerationVersion, VoiceProfile as DBVoiceProfile
 from . import config
 
 
@@ -20,6 +20,43 @@ def _get_generations_dir() -> Path:
     return config.get_generations_dir()
 
 
+def _get_versions_for_generation(generation_id: str, db: Session) -> tuple:
+    """Get versions list and active version ID for a generation."""
+    import json
+    versions_rows = (
+        db.query(DBGenerationVersion)
+        .filter_by(generation_id=generation_id)
+        .order_by(DBGenerationVersion.created_at)
+        .all()
+    )
+    if not versions_rows:
+        return None, None
+
+    versions = []
+    active_version_id = None
+    for v in versions_rows:
+        effects_chain = None
+        if v.effects_chain:
+            try:
+                raw = json.loads(v.effects_chain)
+                effects_chain = [EffectConfig(**e) for e in raw]
+            except Exception:
+                pass
+        versions.append(GenerationVersionResponse(
+            id=v.id,
+            generation_id=v.generation_id,
+            label=v.label,
+            audio_path=v.audio_path,
+            effects_chain=effects_chain,
+            is_default=v.is_default,
+            created_at=v.created_at,
+        ))
+        if v.is_default:
+            active_version_id = v.id
+
+    return versions, active_version_id
+
+
 async def create_generation(
     profile_id: str,
     text: str,
@@ -170,6 +207,7 @@ async def list_generations(
     # Convert to HistoryResponse with profile_name
     items = []
     for generation, profile_name in results:
+        versions, active_version_id = _get_versions_for_generation(generation.id, db)
         items.append(HistoryResponse(
             id=generation.id,
             profile_id=generation.profile_id,
@@ -184,7 +222,10 @@ async def list_generations(
             model_size=generation.model_size,
             status=generation.status or "completed",
             error=generation.error,
+            is_favorited=bool(generation.is_favorited),
             created_at=generation.created_at,
+            versions=versions,
+            active_version_id=active_version_id,
         ))
     
     return HistoryListResponse(
@@ -211,7 +252,12 @@ async def delete_generation(
     if not generation:
         return False
 
-    # Delete audio file
+    # Delete all version files and records
+    from . import versions as versions_mod
+    versions_mod.delete_versions_for_generation(generation_id, db)
+
+    # Delete main audio file (if not already removed by version cleanup)
+    if generation.audio_path:
         audio_path = Path(generation.audio_path)
         if audio_path.exists():
             audio_path.unlink()

backend/main.py

@@ -263,7 +263,7 @@ async def health():
         gpu_type=gpu_type,
         vram_used_mb=vram_used,
         backend_type=backend_type,
-        backend_variant=os.environ.get("VOICEBOX_BACKEND_VARIANT", "cpu"),
+        backend_variant=os.environ.get("VOICEBOX_BACKEND_VARIANT", "cuda" if torch.cuda.is_available() else "cpu"),
     )
 
 
@@ -757,6 +757,20 @@ async def generate_speech(
         text=data.text,
     )
 
+    # Resolve effects chain: explicit request > profile default > none
+    effects_chain_config = None
+    if data.effects_chain is not None:
+        effects_chain_config = [e.model_dump() for e in data.effects_chain]
+    else:
+        # Check profile default
+        import json as _json
+        profile_obj = db.query(DBVoiceProfile).filter_by(id=data.profile_id).first()
+        if profile_obj and profile_obj.effects_chain:
+            try:
+                effects_chain_config = _json.loads(profile_obj.effects_chain)
+            except Exception:
+                pass
+
     # Kick off TTS in background
     async def _run_generation():
         bg_db = next(get_db())
@@ -799,17 +813,55 @@ async def generate_speech(
                 audio = normalize_audio(audio)
 
             duration = len(audio) / sample_rate
-            audio_path = config.get_generations_dir() / f"{generation_id}.wav"
 
+            # Always save clean version first
+            clean_audio_path = config.get_generations_dir() / f"{generation_id}.wav"
             from .utils.audio import save_audio
-            save_audio(audio, str(audio_path), sample_rate)
+            save_audio(audio, str(clean_audio_path), sample_rate)
+
+            from . import versions as versions_mod
+
+            has_effects = effects_chain_config and any(
+                e.get("enabled", True) for e in effects_chain_config
+            )
+
+            # Create clean version entry
+            versions_mod.create_version(
+                generation_id=generation_id,
+                label="original",
+                audio_path=str(clean_audio_path),
+                db=bg_db,
+                effects_chain=None,
+                is_default=not has_effects,
+            )
+
+            # Apply effects and create processed version if configured
+            final_audio_path = str(clean_audio_path)
+            if has_effects:
+                from .utils.effects import apply_effects, validate_effects_chain
+                error_msg = validate_effects_chain(effects_chain_config)
+                if error_msg:
+                    print(f"Warning: invalid effects chain, skipping: {error_msg}")
+                else:
+                    processed_audio = apply_effects(audio, sample_rate, effects_chain_config)
+                    processed_path = config.get_generations_dir() / f"{generation_id}_processed.wav"
+                    save_audio(processed_audio, str(processed_path), sample_rate)
+                    final_audio_path = str(processed_path)
+                    versions_mod.create_version(
+                        generation_id=generation_id,
+                        label="version-2",
+                        audio_path=str(processed_path),
+                        db=bg_db,
+                        effects_chain=effects_chain_config,
+                        is_default=True,
+                    )
 
             # Update the record to completed
             await history.update_generation_status(
                 generation_id=generation_id,
                 status="completed",
                 db=bg_db,
-                audio_path=str(audio_path),
+                audio_path=final_audio_path,
                 duration=duration,
             )
 
@@ -926,6 +978,118 @@ async def retry_generation(generation_id: str, db: Session = Depends(get_db)):
     return models.GenerationResponse.model_validate(gen)
 
 
+@app.post(
+    "/generate/{generation_id}/regenerate",
+    response_model=models.GenerationResponse,
+)
+async def regenerate_generation(generation_id: str, db: Session = Depends(get_db)):
+    """Re-run TTS with the same parameters and save the result as a new version."""
+    gen = db.query(DBGeneration).filter_by(id=generation_id).first()
+    if not gen:
+        raise HTTPException(status_code=404, detail="Generation not found")
+    if (gen.status or "completed") != "completed":
+        raise HTTPException(status_code=400, detail="Generation must be completed to regenerate")
+
+    from .backends import get_tts_backend_for_engine
+    from . import versions as versions_mod
+
+    regen_engine = gen.engine or "qwen"
+    regen_model_size = gen.model_size or "1.7B"
+    tts_model = get_tts_backend_for_engine(regen_engine)
+
+    # Set to generating so the UI shows the loader and SSE picks it up
+    gen.status = "generating"
+    gen.error = None
+    db.commit()
+    db.refresh(gen)
+
+    task_manager = get_task_manager()
+    task_manager.start_generation(
+        task_id=generation_id,
+        profile_id=gen.profile_id,
+        text=gen.text,
+    )
+
+    version_id = str(uuid.uuid4())
+
+    async def _run_regenerate():
+        bg_db = next(get_db())
+        try:
+            if regen_engine == "qwen":
+                await tts_model.load_model_async(regen_model_size)
+            else:
+                await tts_model.load_model()
+
+            voice_prompt = await profiles.create_voice_prompt_for_profile(
+                gen.profile_id,
+                bg_db,
+                use_cache=True,
+                engine=regen_engine,
+            )
+
+            from .utils.chunked_tts import generate_chunked
+
+            trim_fn = None
+            if regen_engine in ("chatterbox", "chatterbox_turbo"):
+                from .utils.audio import trim_tts_output
+                trim_fn = trim_tts_output
+
+            audio, sample_rate = await generate_chunked(
+                tts_model,
+                gen.text,
+                voice_prompt,
+                language=gen.language,
+                seed=None,  # New seed for variation
+                instruct=gen.instruct,
+                trim_fn=trim_fn,
+            )
+
+            from .utils.audio import normalize_audio, save_audio
+            audio = normalize_audio(audio)
+
+            duration = len(audio) / sample_rate
+            audio_path = config.get_generations_dir() / f"{generation_id}_{version_id[:8]}.wav"
+
+            save_audio(audio, str(audio_path), sample_rate)
+
+            # Count existing versions to auto-label
+            existing = versions_mod.list_versions(generation_id, bg_db)
+            label = f"take-{len(existing) + 1}"
+
+            versions_mod.create_version(
+                generation_id=generation_id,
+                label=label,
+                audio_path=str(audio_path),
+                db=bg_db,
+                effects_chain=None,
+                is_default=True,
+            )
+
+            await history.update_generation_status(
+                generation_id=generation_id,
+                status="completed",
+                db=bg_db,
+                audio_path=str(audio_path),
+                duration=duration,
+            )
+        except Exception as e:
+            import traceback
+            traceback.print_exc()
+            await history.update_generation_status(
+                generation_id=generation_id,
+                status="failed",
+                db=bg_db,
+                error=str(e),
+            )
+        finally:
+            task_manager.complete_generation(generation_id)
+            bg_db.close()
+
+    _enqueue_generation(_run_regenerate())
+
+    return models.GenerationResponse.model_validate(gen)
+
+
 @app.get("/generate/{generation_id}/status")
 async def get_generation_status(generation_id: str, db: Session = Depends(get_db)):
     """SSE endpoint that streams generation status updates.
@@ -1150,6 +1314,20 @@ async def get_generation(
     )
 
 
+@app.post("/history/{generation_id}/favorite")
+async def toggle_favorite(
+    generation_id: str,
+    db: Session = Depends(get_db),
+):
+    """Toggle the favorite status of a generation."""
+    gen = db.query(DBGeneration).filter_by(id=generation_id).first()
+    if not gen:
+        raise HTTPException(status_code=404, detail="Generation not found")
+    gen.is_favorited = not gen.is_favorited
+    db.commit()
+    return {"is_favorited": gen.is_favorited}
+
+
 @app.delete("/history/{generation_id}")
 async def delete_generation(
     generation_id: str,
@@ -1245,7 +1423,7 @@ async def transcribe_audio(
     try:
         # Get audio duration
         from .utils.audio import load_audio
-        audio, sr = load_audio(tmp_path)
+        audio, sr = await asyncio.to_thread(load_audio, tmp_path)
         duration = len(audio) / sr
         
         # Transcribe
@@ -1466,6 +1644,20 @@ async def duplicate_story_item(
     return item
 
 
+@app.put("/stories/{story_id}/items/{item_id}/version", response_model=models.StoryItemDetail)
+async def set_story_item_version(
+    story_id: str,
+    item_id: str,
+    data: models.StoryItemVersionUpdate,
+    db: Session = Depends(get_db),
+):
+    """Pin a story item to a specific generation version."""
+    item = await stories.set_story_item_version(story_id, item_id, data, db)
+    if item is None:
+        raise HTTPException(status_code=404, detail="Story item or version not found")
+    return item
+
+
 @app.get("/stories/{story_id}/export-audio")
 async def export_story_audio(
     story_id: str,
@@ -1503,13 +1695,347 @@ async def export_story_audio(
         raise HTTPException(status_code=500, detail=str(e))
 
 
+# ============================================
+# EFFECTS & VERSIONS
+# ============================================
+
+@app.post("/effects/preview/{generation_id}")
+async def preview_effects(
+    generation_id: str,
+    data: models.ApplyEffectsRequest,
+    db: Session = Depends(get_db),
+):
+    """Apply effects to a generation's clean audio and stream back the result without saving.
+
+    Used for ephemeral preview/auditioning of effects chains.
+    """
+    gen = db.query(DBGeneration).filter_by(id=generation_id).first()
+    if not gen:
+        raise HTTPException(status_code=404, detail="Generation not found")
+    if (gen.status or "completed") != "completed":
+        raise HTTPException(status_code=400, detail="Generation is not completed")
+
+    from . import versions as versions_mod
+    from .utils.effects import apply_effects, validate_effects_chain
+    from .utils.audio import load_audio
+
+    # Validate chain
+    chain_dicts = [e.model_dump() for e in data.effects_chain]
+    error = validate_effects_chain(chain_dicts)
+    if error:
+        raise HTTPException(status_code=400, detail=error)
+
+    # Find the original unprocessed version (no effects applied)
+    all_versions = versions_mod.list_versions(generation_id, db)
+    clean_version = next((v for v in all_versions if v.effects_chain is None), None)
+    source_path = clean_version.audio_path if clean_version else gen.audio_path
+    if not source_path or not Path(source_path).exists():
+        raise HTTPException(status_code=404, detail="Source audio file not found")
+
+    # Process in memory (off the event loop)
+    audio, sample_rate = await asyncio.to_thread(load_audio, source_path)
+    processed = await asyncio.to_thread(apply_effects, audio, sample_rate, chain_dicts)
+
+    # Write to in-memory buffer
+    import soundfile as sf
+    buf = io.BytesIO()
+    await asyncio.to_thread(lambda: sf.write(buf, processed, sample_rate, format="WAV"))
+    buf.seek(0)
+
+    return StreamingResponse(
+        buf,
+        media_type="audio/wav",
+        headers={
+            "Content-Disposition": f'inline; filename="preview_{generation_id}.wav"',
+            "Cache-Control": "no-cache, no-store",
+        },
+    )
+
+
+@app.get("/effects/available", response_model=models.AvailableEffectsResponse)
+async def get_available_effects():
+    """List all available effect types with parameter definitions."""
+    from .utils.effects import get_available_effects as _get_effects
+    return models.AvailableEffectsResponse(effects=[
+        models.AvailableEffect(**e) for e in _get_effects()
+    ])
+
+
+@app.get("/effects/presets", response_model=List[models.EffectPresetResponse])
+async def list_effect_presets(db: Session = Depends(get_db)):
+    """List all effect presets (built-in + user-created)."""
+    from . import effects as effects_mod
+    return effects_mod.list_presets(db)
+
+
+@app.get("/effects/presets/{preset_id}", response_model=models.EffectPresetResponse)
+async def get_effect_preset(preset_id: str, db: Session = Depends(get_db)):
+    """Get a specific effect preset."""
+    from . import effects as effects_mod
+    preset = effects_mod.get_preset(preset_id, db)
+    if not preset:
+        raise HTTPException(status_code=404, detail="Preset not found")
+    return preset
+
+
+@app.post("/effects/presets", response_model=models.EffectPresetResponse)
+async def create_effect_preset(
+    data: models.EffectPresetCreate,
+    db: Session = Depends(get_db),
+):
+    """Create a new effect preset."""
+    from . import effects as effects_mod
+    try:
+        return effects_mod.create_preset(data, db)
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+
+@app.put("/effects/presets/{preset_id}", response_model=models.EffectPresetResponse)
+async def update_effect_preset(
+    preset_id: str,
+    data: models.EffectPresetUpdate,
+    db: Session = Depends(get_db),
+):
+    """Update an effect preset."""
+    from . import effects as effects_mod
+    try:
+        result = effects_mod.update_preset(preset_id, data, db)
+        if not result:
+            raise HTTPException(status_code=404, detail="Preset not found")
+        return result
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+
+@app.delete("/effects/presets/{preset_id}")
+async def delete_effect_preset(preset_id: str, db: Session = Depends(get_db)):
+    """Delete a user effect preset."""
+    from . import effects as effects_mod
+    try:
+        if not effects_mod.delete_preset(preset_id, db):
+            raise HTTPException(status_code=404, detail="Preset not found")
+        return {"status": "deleted"}
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+
+@app.get(
+    "/generations/{generation_id}/versions",
+    response_model=List[models.GenerationVersionResponse],
+)
+async def list_generation_versions(
+    generation_id: str,
+    db: Session = Depends(get_db),
+):
+    """List all versions for a generation."""
+    gen = await history.get_generation(generation_id, db)
+    if not gen:
+        raise HTTPException(status_code=404, detail="Generation not found")
+
+    from . import versions as versions_mod
+    return versions_mod.list_versions(generation_id, db)
+
+
+@app.post(
+    "/generations/{generation_id}/versions/apply-effects",
+    response_model=models.GenerationVersionResponse,
+)
+async def apply_effects_to_generation(
+    generation_id: str,
+    data: models.ApplyEffectsRequest,
+    db: Session = Depends(get_db),
+):
+    """Apply an effects chain to an existing generation, creating a new version."""
+    gen = db.query(DBGeneration).filter_by(id=generation_id).first()
+    if not gen:
+        raise HTTPException(status_code=404, detail="Generation not found")
+    if (gen.status or "completed") != "completed":
+        raise HTTPException(status_code=400, detail="Generation is not completed")
+
+    from . import versions as versions_mod
+    from .utils.effects import apply_effects, validate_effects_chain
+    from .utils.audio import load_audio, save_audio
+
+    # Validate effects chain
+    chain_dicts = [e.model_dump() for e in data.effects_chain]
+    error = validate_effects_chain(chain_dicts)
+    if error:
+        raise HTTPException(status_code=400, detail=error)
+
+    # Determine source audio: use specified version, or fall back to clean/original
+    all_versions = versions_mod.list_versions(generation_id, db)
+    source_version_id = data.source_version_id
+    if source_version_id:
+        source_version = next(
+            (v for v in all_versions if v.id == source_version_id), None
+        )
+        if not source_version:
+            raise HTTPException(status_code=404, detail="Source version not found")
+        source_path = source_version.audio_path
+    else:
+        clean_version = next(
+            (v for v in all_versions if v.effects_chain is None), None
+        )
+        if not clean_version:
+            source_path = gen.audio_path
+        else:
+            source_path = clean_version.audio_path
+            source_version_id = clean_version.id
+
+    if not source_path or not Path(source_path).exists():
+        raise HTTPException(status_code=404, detail="Source audio file not found")
+
+    # Load, process, save (off the event loop)
+    audio, sample_rate = await asyncio.to_thread(load_audio, source_path)
+    processed_audio = await asyncio.to_thread(apply_effects, audio, sample_rate, chain_dicts)
+
+    # Generate a unique filename
+    version_id = str(uuid.uuid4())
+    processed_path = config.get_generations_dir() / f"{generation_id}_{version_id[:8]}.wav"
+    await asyncio.to_thread(save_audio, processed_audio, str(processed_path), sample_rate)
+
+    # Auto-label
+    label = data.label or f"version-{len(all_versions) + 1}"
+
+    version = versions_mod.create_version(
+        generation_id=generation_id,
+        label=label,
+        audio_path=str(processed_path),
+        db=db,
+        effects_chain=chain_dicts,
+        is_default=data.set_as_default,
+        source_version_id=source_version_id,
+    )
+
+    return version
+
+
+@app.put(
+    "/generations/{generation_id}/versions/{version_id}/set-default",
+    response_model=models.GenerationVersionResponse,
+)
+async def set_default_version(
+    generation_id: str,
+    version_id: str,
+    db: Session = Depends(get_db),
+):
+    """Set a specific version as the default for a generation."""
+    from . import versions as versions_mod
+
+    version = versions_mod.get_version(version_id, db)
+    if not version or version.generation_id != generation_id:
+        raise HTTPException(status_code=404, detail="Version not found")
+
+    result = versions_mod.set_default_version(version_id, db)
+    if not result:
+        raise HTTPException(status_code=404, detail="Version not found")
+    return result
+
+
+@app.delete("/generations/{generation_id}/versions/{version_id}")
+async def delete_generation_version(
+    generation_id: str,
+    version_id: str,
+    db: Session = Depends(get_db),
+):
+    """Delete a version. Cannot delete the last remaining version."""
+    from . import versions as versions_mod
+
+    version = versions_mod.get_version(version_id, db)
+    if not version or version.generation_id != generation_id:
+        raise HTTPException(status_code=404, detail="Version not found")
+
+    if not versions_mod.delete_version(version_id, db):
+        raise HTTPException(
+            status_code=400,
+            detail="Cannot delete the last remaining version",
+        )
+    return {"status": "deleted"}
+
+
+@app.get("/audio/version/{version_id}")
+async def get_version_audio(version_id: str, db: Session = Depends(get_db)):
+    """Serve audio for a specific version."""
+    from . import versions as versions_mod
+
+    version = versions_mod.get_version(version_id, db)
+    if not version:
+        raise HTTPException(status_code=404, detail="Version not found")
+
+    audio_path = Path(version.audio_path)
+    if not audio_path.exists():
+        raise HTTPException(status_code=404, detail="Audio file not found")
+
+    return FileResponse(
+        audio_path,
+        media_type="audio/wav",
+        filename=f"generation_{version.generation_id}_{version.label}.wav",
+    )
+
+
+@app.put("/profiles/{profile_id}/effects", response_model=models.VoiceProfileResponse)
+async def update_profile_effects(
+    profile_id: str,
+    data: models.ProfileEffectsUpdate,
+    db: Session = Depends(get_db),
+):
+    """Set or clear the default effects chain for a voice profile."""
+    import json as _json
+
+    profile = db.query(DBVoiceProfile).filter_by(id=profile_id).first()
+    if not profile:
+        raise HTTPException(status_code=404, detail="Profile not found")
+
+    if data.effects_chain is not None:
+        from .utils.effects import validate_effects_chain
+        chain_dicts = [e.model_dump() for e in data.effects_chain]
+        error = validate_effects_chain(chain_dicts)
+        if error:
+            raise HTTPException(status_code=400, detail=error)
+        profile.effects_chain = _json.dumps(chain_dicts)
+    else:
+        profile.effects_chain = None
+
+    profile.updated_at = datetime.utcnow()
+    db.commit()
+    db.refresh(profile)
+
+    return _profile_to_response(profile)
+
+
+def _profile_to_response(profile) -> models.VoiceProfileResponse:
+    """Convert a DB profile to a VoiceProfileResponse with parsed effects_chain."""
+    import json as _json
+    import logging
+
+    effects_chain = None
+    if profile.effects_chain:
+        try:
+            raw = _json.loads(profile.effects_chain)
+            effects_chain = [models.EffectConfig(**e) for e in raw]
+        except Exception as e:
+            logging.warning(f"Failed to parse effects_chain for profile {profile.id}: {e}")
+
+    return models.VoiceProfileResponse(
+        id=profile.id,
+        name=profile.name,
+        description=profile.description,
+        language=profile.language,
+        avatar_path=profile.avatar_path,
+        effects_chain=effects_chain,
+        created_at=profile.created_at,
+        updated_at=profile.updated_at,
+    )
+
+
 # ============================================
 # FILE SERVING
 # ============================================
 
 @app.get("/audio/{generation_id}")
 async def get_audio(generation_id: str, db: Session = Depends(get_db)):
-    """Serve generated audio file."""
+    """Serve generated audio file (serves the default version)."""
     generation = await history.get_generation(generation_id, db)
     if not generation:
         raise HTTPException(status_code=404, detail="Generation not found")

backend/models.py

@@ -21,6 +21,9 @@ class VoiceProfileResponse(BaseModel):
     description: Optional[str]
     language: str
     avatar_path: Optional[str] = None
+    effects_chain: Optional[List["EffectConfig"]] = None
+    generation_count: int = 0
+    sample_count: int = 0
     created_at: datetime
     updated_at: datetime
 
@@ -61,6 +64,7 @@ class GenerationRequest(BaseModel):
     max_chunk_chars: int = Field(default=800, ge=100, le=5000, description="Max characters per chunk for long text splitting")
     crossfade_ms: int = Field(default=50, ge=0, le=500, description="Crossfade duration in ms between chunks (0 for hard cut)")
     normalize: bool = Field(default=True, description="Normalize output audio volume")
+    effects_chain: Optional[List["EffectConfig"]] = Field(None, description="Effects chain to apply after generation (overrides profile default)")
 
 
 class GenerationResponse(BaseModel):
@@ -77,7 +81,10 @@ class GenerationResponse(BaseModel):
     model_size: Optional[str] = None
     status: str = "completed"
     error: Optional[str] = None
+    is_favorited: bool = False
     created_at: datetime
+    versions: Optional[List["GenerationVersionResponse"]] = None
+    active_version_id: Optional[str] = None
 
     class Config:
         from_attributes = True
@@ -106,7 +113,10 @@ class HistoryResponse(BaseModel):
     model_size: Optional[str] = None
     status: str = "completed"
     error: Optional[str] = None
+    is_favorited: bool = False
     created_at: datetime
+    versions: Optional[List["GenerationVersionResponse"]] = None
+    active_version_id: Optional[str] = None
 
     class Config:
         from_attributes = True
@@ -268,6 +278,7 @@ class StoryItemDetail(BaseModel):
     id: str
     story_id: str
     generation_id: str
+    version_id: Optional[str] = None
     start_time_ms: int
     track: int = 0
     trim_start_ms: int = 0
@@ -283,6 +294,9 @@ class StoryItemDetail(BaseModel):
     seed: Optional[int]
     instruct: Optional[str]
     generation_created_at: datetime
+    # Versions available for this generation
+    versions: Optional[List["GenerationVersionResponse"]] = None
+    active_version_id: Optional[str] = None
 
     class Config:
         from_attributes = True
@@ -339,3 +353,101 @@ class StoryItemTrim(BaseModel):
 class StoryItemSplit(BaseModel):
     """Request model for splitting a story item."""
     split_time_ms: int = Field(..., ge=0)  # Time within the clip to split at (relative to clip start)
+
+
+class StoryItemVersionUpdate(BaseModel):
+    """Request model for setting a story item's pinned version."""
+    version_id: Optional[str] = None  # null = use generation default
+
+
+# ============================================
+# Effects & Versions
+# ============================================
+
+class EffectConfig(BaseModel):
+    """A single effect in an effects chain."""
+    type: str
+    enabled: bool = True
+    params: dict = Field(default_factory=dict)
+
+
+class EffectsChain(BaseModel):
+    """An ordered list of effects to apply."""
+    effects: List[EffectConfig] = Field(default_factory=list)
+
+
+class EffectPresetCreate(BaseModel):
+    """Request model for creating an effect preset."""
+    name: str = Field(..., min_length=1, max_length=100)
+    description: Optional[str] = Field(None, max_length=500)
+    effects_chain: List[EffectConfig]
+
+
+class EffectPresetUpdate(BaseModel):
+    """Request model for updating an effect preset."""
+    name: Optional[str] = Field(None, min_length=1, max_length=100)
+    description: Optional[str] = None
+    effects_chain: Optional[List[EffectConfig]] = None
+
+
+class EffectPresetResponse(BaseModel):
+    """Response model for effect preset."""
+    id: str
+    name: str
+    description: Optional[str] = None
+    effects_chain: List[EffectConfig]
+    is_builtin: bool = False
+    created_at: datetime
+
+    class Config:
+        from_attributes = True
+
+
+class GenerationVersionResponse(BaseModel):
+    """Response model for a generation version."""
+    id: str
+    generation_id: str
+    label: str
+    audio_path: str
+    effects_chain: Optional[List[EffectConfig]] = None
+    source_version_id: Optional[str] = None
+    is_default: bool
+    created_at: datetime
+
+    class Config:
+        from_attributes = True
+
+
+class ApplyEffectsRequest(BaseModel):
+    """Request to apply effects to an existing generation."""
+    effects_chain: List[EffectConfig]
+    source_version_id: Optional[str] = Field(None, description="Version to use as source audio (defaults to clean/original)")
+    label: Optional[str] = Field(None, max_length=100, description="Label for this version (auto-generated if omitted)")
+    set_as_default: bool = Field(default=True, description="Set this version as the default")
+
+
+class ProfileEffectsUpdate(BaseModel):
+    """Request to update the default effects chain on a profile."""
+    effects_chain: Optional[List[EffectConfig]] = Field(None, description="Effects chain (null to remove)")
+
+
+class AvailableEffectParam(BaseModel):
+    """Description of a single effect parameter."""
+    default: float
+    min: float
+    max: float
+    step: float
+    description: str
+
+
+class AvailableEffect(BaseModel):
+    """Description of an available effect type."""
+    type: str
+    label: str
+    description: str
+    params: dict  # param_name -> AvailableEffectParam
+
+
+class AvailableEffectsResponse(BaseModel):
+    """Response listing all available effect types."""
+    effects: List[AvailableEffect]

backend/profiles.py

@@ -8,7 +8,7 @@ import uuid
 import shutil
 from pathlib import Path
 from sqlalchemy.orm import Session
-from sqlalchemy import select
+from sqlalchemy import func, select
 
 from .models import (
     VoiceProfileCreate,
@@ -19,12 +19,43 @@ from .models import (
 from .database import (
     VoiceProfile as DBVoiceProfile,
     ProfileSample as DBProfileSample,
+    Generation as DBGeneration,
 )
+from .models import EffectConfig
 from .utils.audio import validate_reference_audio, load_audio, save_audio
 from .utils.images import validate_image, process_avatar
 from .utils.cache import _get_cache_dir, clear_profile_cache
 from .tts import get_tts_model
 from . import config
+import json as _json
+
+
+def _profile_to_response(
+    profile: DBVoiceProfile,
+    generation_count: int = 0,
+    sample_count: int = 0,
+) -> VoiceProfileResponse:
+    """Convert a DB profile to a VoiceProfileResponse, deserializing effects_chain."""
+    effects_chain = None
+    if profile.effects_chain:
+        try:
+            raw = _json.loads(profile.effects_chain)
+            effects_chain = [EffectConfig(**e) for e in raw]
+        except Exception as e:
+            import logging
+            logging.warning(f"Failed to parse effects_chain for profile {profile.id}: {e}")
+    return VoiceProfileResponse(
+        id=profile.id,
+        name=profile.name,
+        description=profile.description,
+        language=profile.language,
+        avatar_path=profile.avatar_path,
+        effects_chain=effects_chain,
+        generation_count=generation_count,
+        sample_count=sample_count,
+        created_at=profile.created_at,
+        updated_at=profile.updated_at,
+    )
 
 
 def _get_profiles_dir() -> Path:
@@ -72,7 +103,7 @@ async def create_profile(
     profile_dir = _get_profiles_dir() / db_profile.id
     profile_dir.mkdir(parents=True, exist_ok=True)
 
-    return VoiceProfileResponse.model_validate(db_profile)
+    return _profile_to_response(db_profile)
 
 
 async def add_profile_sample(
@@ -154,7 +185,7 @@ async def get_profile(
     if not profile:
         return None
     
-    return VoiceProfileResponse.model_validate(profile)
+    return _profile_to_response(profile)
 
 
 async def get_profile_samples(
@@ -177,7 +208,7 @@ async def get_profile_samples(
 
 async def list_profiles(db: Session) -> List[VoiceProfileResponse]:
     """
-    List all voice profiles.
+    List all voice profiles with generation and sample counts.
     
     Args:
         db: Database session
@@ -189,7 +220,33 @@ async def list_profiles(db: Session) -> List[VoiceProfileResponse]:
         DBVoiceProfile.created_at.desc()
     ).all()
 
-    return [VoiceProfileResponse.model_validate(p) for p in profiles]
+    if not profiles:
+        return []
+
+    # Batch-fetch generation counts
+    gen_counts_rows = (
+        db.query(DBGeneration.profile_id, func.count(DBGeneration.id))
+        .group_by(DBGeneration.profile_id)
+        .all()
+    )
+    gen_counts = {row[0]: row[1] for row in gen_counts_rows}
+
+    # Batch-fetch sample counts
+    sample_counts_rows = (
+        db.query(DBProfileSample.profile_id, func.count(DBProfileSample.id))
+        .group_by(DBProfileSample.profile_id)
+        .all()
+    )
+    sample_counts = {row[0]: row[1] for row in sample_counts_rows}
+
+    return [
+        _profile_to_response(
+            p,
+            generation_count=gen_counts.get(p.id, 0),
+            sample_count=sample_counts.get(p.id, 0),
+        )
+        for p in profiles
+    ]
 
 
 async def update_profile(
@@ -230,7 +287,7 @@ async def update_profile(
     db.commit()
     db.refresh(profile)
 
-    return VoiceProfileResponse.model_validate(profile)
+    return _profile_to_response(profile)
 
 
 async def delete_profile(
@@ -472,7 +529,7 @@ async def upload_avatar(
     db.commit()
     db.refresh(profile)
 
-    return VoiceProfileResponse.model_validate(profile)
+    return _profile_to_response(profile)
 
 
 async def delete_avatar(

backend/requirements.txt

@@ -38,6 +38,7 @@ librosa>=0.10.0
 soundfile>=0.12.0
 numpy>=1.24.0
 numba>=0.60.0,<0.61.0
+pedalboard>=0.9.0
 
 # HTTP client (for CUDA backend download)
 httpx>=0.27.0

backend/stories.py

@@ -20,12 +20,55 @@ from .models import (
     StoryItemMove,
     StoryItemTrim,
     StoryItemSplit,
+    StoryItemVersionUpdate,
 )
 from .database import Story as DBStory, StoryItem as DBStoryItem, Generation as DBGeneration, VoiceProfile as DBVoiceProfile
+from .history import _get_versions_for_generation
 from .utils.audio import load_audio, save_audio
 import numpy as np
 
 
+def _build_item_detail(
+    item: DBStoryItem,
+    generation: DBGeneration,
+    profile_name: str,
+    db: Session,
+) -> StoryItemDetail:
+    """Build a StoryItemDetail with version info from a story item and its generation."""
+    versions, active_version_id = _get_versions_for_generation(generation.id, db)
+
+    # Resolve the audio path: if version_id is set, use that version's audio
+    audio_path = generation.audio_path
+    if item.version_id and versions:
+        for v in versions:
+            if v.id == item.version_id:
+                audio_path = v.audio_path
+                break
+
+    return StoryItemDetail(
+        id=item.id,
+        story_id=item.story_id,
+        generation_id=item.generation_id,
+        version_id=getattr(item, 'version_id', None),
+        start_time_ms=item.start_time_ms,
+        track=item.track,
+        trim_start_ms=getattr(item, 'trim_start_ms', 0),
+        trim_end_ms=getattr(item, 'trim_end_ms', 0),
+        created_at=item.created_at,
+        profile_id=generation.profile_id,
+        profile_name=profile_name,
+        text=generation.text,
+        language=generation.language,
+        audio_path=audio_path,
+        duration=generation.duration,
+        seed=generation.seed,
+        instruct=generation.instruct,
+        generation_created_at=generation.created_at,
+        versions=versions,
+        active_version_id=active_version_id,
+    )
+
+
 async def create_story(
     data: StoryCreate,
     db: Session,
@@ -125,26 +168,7 @@ async def get_story(
     # Build item details
     item_details = []
     for item, generation, profile_name in items:
-        item_detail = StoryItemDetail(
+        item_details.append(_build_item_detail(item, generation, profile_name, db))
-            id=item.id,
-            story_id=item.story_id,
-            generation_id=item.generation_id,
-            start_time_ms=item.start_time_ms,
-            track=item.track,
-            trim_start_ms=getattr(item, 'trim_start_ms', 0),
-            trim_end_ms=getattr(item, 'trim_end_ms', 0),
-            created_at=item.created_at,
-            profile_id=generation.profile_id,
-            profile_name=profile_name,
-            text=generation.text,
-            language=generation.language,
-            audio_path=generation.audio_path,
-            duration=generation.duration,
-            seed=generation.seed,
-            instruct=generation.instruct,
-            generation_created_at=generation.created_at,
-        )
-        item_details.append(item_detail)
 
     response = StoryDetailResponse.model_validate(story)
     response.items = item_details
@@ -250,25 +274,7 @@ async def add_item_to_story(
     if existing:
         # Return existing item
         profile = db.query(DBVoiceProfile).filter_by(id=generation.profile_id).first()
-        return StoryItemDetail(
+        return _build_item_detail(existing, generation, profile.name if profile else "Unknown", db)
-            id=existing.id,
-            story_id=existing.story_id,
-            generation_id=existing.generation_id,
-            start_time_ms=existing.start_time_ms,
-            track=existing.track,
-            trim_start_ms=getattr(existing, 'trim_start_ms', 0),
-            trim_end_ms=getattr(existing, 'trim_end_ms', 0),
-            created_at=existing.created_at,
-            profile_id=generation.profile_id,
-            profile_name=profile.name if profile else "Unknown",
-            text=generation.text,
-            language=generation.language,
-            audio_path=generation.audio_path,
-            duration=generation.duration,
-            seed=generation.seed,
-            instruct=generation.instruct,
-            generation_created_at=generation.created_at,
-        )
 
     # Get track from data or default to 0
     track = data.track if data.track is not None else 0
@@ -321,25 +327,7 @@ async def add_item_to_story(
     # Get profile name
     profile = db.query(DBVoiceProfile).filter_by(id=generation.profile_id).first()
 
-    return StoryItemDetail(
+    return _build_item_detail(item, generation, profile.name if profile else "Unknown", db)
-        id=item.id,
-        story_id=item.story_id,
-        generation_id=item.generation_id,
-        start_time_ms=item.start_time_ms,
-        track=item.track,
-        trim_start_ms=getattr(item, 'trim_start_ms', 0),
-        trim_end_ms=getattr(item, 'trim_end_ms', 0),
-        created_at=item.created_at,
-        profile_id=generation.profile_id,
-        profile_name=profile.name if profile else "Unknown",
-        text=generation.text,
-        language=generation.language,
-        audio_path=generation.audio_path,
-        duration=generation.duration,
-        seed=generation.seed,
-        instruct=generation.instruct,
-        generation_created_at=generation.created_at,
-    )
 
 
 async def move_story_item(
@@ -388,25 +376,7 @@ async def move_story_item(
     # Get profile name
     profile = db.query(DBVoiceProfile).filter_by(id=generation.profile_id).first()
 
-    return StoryItemDetail(
+    return _build_item_detail(item, generation, profile.name if profile else "Unknown", db)
-        id=item.id,
-        story_id=item.story_id,
-        generation_id=item.generation_id,
-        start_time_ms=item.start_time_ms,
-        track=item.track,
-        trim_start_ms=getattr(item, 'trim_start_ms', 0),
-        trim_end_ms=getattr(item, 'trim_end_ms', 0),
-        created_at=item.created_at,
-        profile_id=generation.profile_id,
-        profile_name=profile.name if profile else "Unknown",
-        text=generation.text,
-        language=generation.language,
-        audio_path=generation.audio_path,
-        duration=generation.duration,
-        seed=generation.seed,
-        instruct=generation.instruct,
-        generation_created_at=generation.created_at,
-    )
 
 
 async def remove_item_from_story(
@@ -495,25 +465,7 @@ async def trim_story_item(
     # Get profile name
     profile = db.query(DBVoiceProfile).filter_by(id=generation.profile_id).first()
 
-    return StoryItemDetail(
+    return _build_item_detail(item, generation, profile.name if profile else "Unknown", db)
-        id=item.id,
-        story_id=item.story_id,
-        generation_id=item.generation_id,
-        start_time_ms=item.start_time_ms,
-        track=item.track,
-        trim_start_ms=item.trim_start_ms,
-        trim_end_ms=item.trim_end_ms,
-        created_at=item.created_at,
-        profile_id=generation.profile_id,
-        profile_name=profile.name if profile else "Unknown",
-        text=generation.text,
-        language=generation.language,
-        audio_path=generation.audio_path,
-        duration=generation.duration,
-        seed=generation.seed,
-        instruct=generation.instruct,
-        generation_created_at=generation.created_at,
-    )
 
 
 async def split_story_item(
@@ -568,6 +520,7 @@ async def split_story_item(
         id=str(uuid.uuid4()),
         story_id=story_id,
         generation_id=item.generation_id,  # Same generation, different trim
+        version_id=getattr(item, 'version_id', None),  # Preserve pinned version
         start_time_ms=item.start_time_ms + data.split_time_ms,
         track=item.track,
         trim_start_ms=absolute_split_ms,
@@ -590,48 +543,10 @@ async def split_story_item(
     profile = db.query(DBVoiceProfile).filter_by(id=generation.profile_id).first()
     profile_name = profile.name if profile else "Unknown"
 
-    # Build response items
+    return [
-    original_item_detail = StoryItemDetail(
+        _build_item_detail(item, generation, profile_name, db),
-        id=item.id,
+        _build_item_detail(new_item, generation, profile_name, db),
-        story_id=item.story_id,
+    ]
-        generation_id=item.generation_id,
-        start_time_ms=item.start_time_ms,
-        track=item.track,
-        trim_start_ms=item.trim_start_ms,
-        trim_end_ms=item.trim_end_ms,
-        created_at=item.created_at,
-        profile_id=generation.profile_id,
-        profile_name=profile_name,
-        text=generation.text,
-        language=generation.language,
-        audio_path=generation.audio_path,
-        duration=generation.duration,
-        seed=generation.seed,
-        instruct=generation.instruct,
-        generation_created_at=generation.created_at,
-    )
-
-    new_item_detail = StoryItemDetail(
-        id=new_item.id,
-        story_id=new_item.story_id,
-        generation_id=new_item.generation_id,
-        start_time_ms=new_item.start_time_ms,
-        track=new_item.track,
-        trim_start_ms=new_item.trim_start_ms,
-        trim_end_ms=new_item.trim_end_ms,
-        created_at=new_item.created_at,
-        profile_id=generation.profile_id,
-        profile_name=profile_name,
-        text=generation.text,
-        language=generation.language,
-        audio_path=generation.audio_path,
-        duration=generation.duration,
-        seed=generation.seed,
-        instruct=generation.instruct,
-        generation_created_at=generation.created_at,
-    )
-
-    return [original_item_detail, new_item_detail]
 
 
 async def duplicate_story_item(
@@ -674,6 +589,7 @@ async def duplicate_story_item(
         id=str(uuid.uuid4()),
         story_id=story_id,
         generation_id=original_item.generation_id,  # Same generation as original
+        version_id=getattr(original_item, 'version_id', None),  # Preserve pinned version
         start_time_ms=original_item.start_time_ms + effective_duration_ms + 200,  # 200ms gap
         track=original_item.track,
         trim_start_ms=current_trim_start,
@@ -694,25 +610,7 @@ async def duplicate_story_item(
     # Get profile name
     profile = db.query(DBVoiceProfile).filter_by(id=generation.profile_id).first()
 
-    return StoryItemDetail(
+    return _build_item_detail(new_item, generation, profile.name if profile else "Unknown", db)
-        id=new_item.id,
-        story_id=new_item.story_id,
-        generation_id=new_item.generation_id,
-        start_time_ms=new_item.start_time_ms,
-        track=new_item.track,
-        trim_start_ms=new_item.trim_start_ms,
-        trim_end_ms=new_item.trim_end_ms,
-        created_at=new_item.created_at,
-        profile_id=generation.profile_id,
-        profile_name=profile.name if profile else "Unknown",
-        text=generation.text,
-        language=generation.language,
-        audio_path=generation.audio_path,
-        duration=generation.duration,
-        seed=generation.seed,
-        instruct=generation.instruct,
-        generation_created_at=generation.created_at,
-    )
 
 
 async def update_story_item_times(
@@ -813,25 +711,7 @@ async def reorder_story_items(
         current_time_ms += duration_ms + gap_ms
 
         # Build the response item
-        updated_items.append(StoryItemDetail(
+        updated_items.append(_build_item_detail(item, generation, profile_name, db))
-            id=item.id,
-            story_id=item.story_id,
-            generation_id=item.generation_id,
-            start_time_ms=item.start_time_ms,
-            track=item.track,
-            trim_start_ms=getattr(item, 'trim_start_ms', 0),
-            trim_end_ms=getattr(item, 'trim_end_ms', 0),
-            created_at=item.created_at,
-            profile_id=generation.profile_id,
-            profile_name=profile_name,
-            text=generation.text,
-            language=generation.language,
-            audio_path=generation.audio_path,
-            duration=generation.duration,
-            seed=generation.seed,
-            instruct=generation.instruct,
-            generation_created_at=generation.created_at,
-        ))
 
     # Update story updated_at
     story.updated_at = datetime.utcnow()
@@ -840,6 +720,60 @@ async def reorder_story_items(
     return updated_items
 
 
+async def set_story_item_version(
+    story_id: str,
+    item_id: str,
+    data: StoryItemVersionUpdate,
+    db: Session,
+) -> Optional[StoryItemDetail]:
+    """
+    Pin a story item to a specific generation version.
+
+    Args:
+        story_id: Story ID
+        item_id: Story item ID
+        data: Version update data (version_id or null for default)
+        db: Database session
+
+    Returns:
+        Updated item detail or None if not found
+    """
+    item = db.query(DBStoryItem).filter_by(
+        id=item_id,
+        story_id=story_id,
+    ).first()
+    if not item:
+        return None
+
+    generation = db.query(DBGeneration).filter_by(id=item.generation_id).first()
+    if not generation:
+        return None
+
+    # Validate version_id belongs to this generation if provided
+    if data.version_id:
+        from .database import GenerationVersion as DBGenerationVersion
+        version = db.query(DBGenerationVersion).filter_by(
+            id=data.version_id,
+            generation_id=item.generation_id,
+        ).first()
+        if not version:
+            return None
+
+    item.version_id = data.version_id
+
+    # Update story updated_at
+    story = db.query(DBStory).filter_by(id=story_id).first()
+    if story:
+        story.updated_at = datetime.utcnow()
+
+    db.commit()
+    db.refresh(item)
+
+    profile = db.query(DBVoiceProfile).filter_by(id=generation.profile_id).first()
+
+    return _build_item_detail(item, generation, profile.name if profile else "Unknown", db)
+
+
 async def export_story_audio(
     story_id: str,
     db: Session,
@@ -877,7 +811,15 @@ async def export_story_audio(
     sample_rate = 24000  # Default sample rate
 
     for item, generation in items:
-        audio_path = Path(generation.audio_path)
+        # Resolve audio path: use pinned version if set, otherwise generation default
+        resolved_audio_path = generation.audio_path
+        if getattr(item, 'version_id', None):
+            from .database import GenerationVersion as DBGenerationVersion
+            version = db.query(DBGenerationVersion).filter_by(id=item.version_id).first()
+            if version:
+                resolved_audio_path = version.audio_path
+
+        audio_path = Path(resolved_audio_path)
         if not audio_path.exists():
             continue
 

backend/utils/effects.py

@@ -0,0 +1,356 @@
+"""
+Audio post-processing effects engine.
+
+Uses Spotify's pedalboard library to apply professional-grade DSP effects
+to generated audio. Effects are described as a JSON-serializable chain
+(list of effect dicts) so they can be stored in the database and sent
+over the API.
+
+Supported effect types:
+  - chorus      (flanger-style with short delays)
+  - reverb      (room reverb)
+  - delay       (echo / delay line)
+  - compressor  (dynamic range compression)
+  - gain        (volume adjustment in dB)
+  - highpass     (high-pass filter)
+  - lowpass      (low-pass filter)
+  - pitch_shift (semitone pitch shifting)
+"""
+
+from __future__ import annotations
+
+import numpy as np
+from typing import Any, Dict, List, Optional
+
+from pedalboard import (
+    Pedalboard,
+    Chorus,
+    Reverb,
+    Compressor,
+    Gain,
+    HighpassFilter,
+    LowpassFilter,
+    Delay,
+    PitchShift,
+)
+
+
+# ---------------------------------------------------------------------------
+# Effect registry: maps type names -> (pedalboard class, param definitions)
+# ---------------------------------------------------------------------------
+
+# Each param definition: (default, min, max, description)
+EFFECT_REGISTRY: Dict[str, Dict[str, Any]] = {
+    "chorus": {
+        "cls": Chorus,
+        "label": "Chorus / Flanger",
+        "description": "Modulated delay for flanging or chorus effects. Short centre_delay_ms (<10) gives flanger; longer gives chorus.",
+        "params": {
+            "rate_hz":          {"default": 1.0,  "min": 0.01, "max": 20.0,  "step": 0.01, "description": "LFO speed (Hz)"},
+            "depth":            {"default": 0.5,  "min": 0.0,  "max": 1.0,   "step": 0.01, "description": "Modulation depth"},
+            "feedback":         {"default": 0.0,  "min": 0.0,  "max": 0.95,  "step": 0.01, "description": "Feedback amount"},
+            "centre_delay_ms":  {"default": 7.0,  "min": 0.5,  "max": 50.0,  "step": 0.1,  "description": "Centre delay (ms)"},
+            "mix":              {"default": 0.5,  "min": 0.0,  "max": 1.0,   "step": 0.01, "description": "Wet/dry mix"},
+        },
+    },
+    "reverb": {
+        "cls": Reverb,
+        "label": "Reverb",
+        "description": "Room reverb effect.",
+        "params": {
+            "room_size":  {"default": 0.5,  "min": 0.0,  "max": 1.0,  "step": 0.01, "description": "Room size"},
+            "damping":    {"default": 0.5,  "min": 0.0,  "max": 1.0,  "step": 0.01, "description": "High frequency damping"},
+            "wet_level":  {"default": 0.33, "min": 0.0,  "max": 1.0,  "step": 0.01, "description": "Wet level"},
+            "dry_level":  {"default": 0.4,  "min": 0.0,  "max": 1.0,  "step": 0.01, "description": "Dry level"},
+            "width":      {"default": 1.0,  "min": 0.0,  "max": 1.0,  "step": 0.01, "description": "Stereo width"},
+        },
+    },
+    "delay": {
+        "cls": Delay,
+        "label": "Delay",
+        "description": "Echo / delay line.",
+        "params": {
+            "delay_seconds": {"default": 0.3,  "min": 0.01, "max": 2.0,  "step": 0.01, "description": "Delay time (seconds)"},
+            "feedback":      {"default": 0.3,  "min": 0.0,  "max": 0.95, "step": 0.01, "description": "Feedback amount"},
+            "mix":           {"default": 0.3,  "min": 0.0,  "max": 1.0,  "step": 0.01, "description": "Wet/dry mix"},
+        },
+    },
+    "compressor": {
+        "cls": Compressor,
+        "label": "Compressor",
+        "description": "Dynamic range compression for consistent loudness.",
+        "params": {
+            "threshold_db": {"default": -20.0, "min": -60.0, "max": 0.0,   "step": 0.5, "description": "Threshold (dB)"},
+            "ratio":        {"default": 4.0,   "min": 1.0,   "max": 20.0,  "step": 0.1, "description": "Compression ratio"},
+            "attack_ms":    {"default": 10.0,  "min": 0.1,   "max": 100.0, "step": 0.1, "description": "Attack time (ms)"},
+            "release_ms":   {"default": 100.0, "min": 10.0,  "max": 1000.0,"step": 1.0, "description": "Release time (ms)"},
+        },
+    },
+    "gain": {
+        "cls": Gain,
+        "label": "Gain",
+        "description": "Volume adjustment in decibels.",
+        "params": {
+            "gain_db": {"default": 0.0, "min": -40.0, "max": 40.0, "step": 0.5, "description": "Gain (dB)"},
+        },
+    },
+    "highpass": {
+        "cls": HighpassFilter,
+        "label": "High-Pass Filter",
+        "description": "Removes frequencies below the cutoff.",
+        "params": {
+            "cutoff_frequency_hz": {"default": 80.0, "min": 20.0, "max": 8000.0, "step": 1.0, "description": "Cutoff frequency (Hz)"},
+        },
+    },
+    "lowpass": {
+        "cls": LowpassFilter,
+        "label": "Low-Pass Filter",
+        "description": "Removes frequencies above the cutoff.",
+        "params": {
+            "cutoff_frequency_hz": {"default": 8000.0, "min": 200.0, "max": 20000.0, "step": 1.0, "description": "Cutoff frequency (Hz)"},
+        },
+    },
+    "pitch_shift": {
+        "cls": PitchShift,
+        "label": "Pitch Shift",
+        "description": "Shift pitch up or down by semitones.",
+        "params": {
+            "semitones": {"default": 0.0, "min": -12.0, "max": 12.0, "step": 0.5, "description": "Semitones to shift"},
+        },
+    },
+}
+
+
+# ---------------------------------------------------------------------------
+# Built-in presets
+# ---------------------------------------------------------------------------
+
+BUILTIN_PRESETS: Dict[str, Dict[str, Any]] = {
+    "robotic": {
+        "name": "Robotic",
+        "sort_order": 0,
+        "description": "Metallic robotic voice (flanger with slow LFO and high feedback)",
+        "effects_chain": [
+            {
+                "type": "chorus",
+                "enabled": True,
+                "params": {
+                    "rate_hz": 0.2,
+                    "depth": 1.0,
+                    "feedback": 0.35,
+                    "centre_delay_ms": 7.0,
+                    "mix": 0.5,
+                },
+            },
+        ],
+    },
+    "radio": {
+        "name": "Radio",
+        "sort_order": 1,
+        "description": "Thin AM-radio voice with band-pass filtering and light compression",
+        "effects_chain": [
+            {
+                "type": "highpass",
+                "enabled": True,
+                "params": {"cutoff_frequency_hz": 300.0},
+            },
+            {
+                "type": "lowpass",
+                "enabled": True,
+                "params": {"cutoff_frequency_hz": 3500.0},
+            },
+            {
+                "type": "compressor",
+                "enabled": True,
+                "params": {
+                    "threshold_db": -15.0,
+                    "ratio": 6.0,
+                    "attack_ms": 5.0,
+                    "release_ms": 50.0,
+                },
+            },
+            {
+                "type": "gain",
+                "enabled": True,
+                "params": {"gain_db": 6.0},
+            },
+        ],
+    },
+    "echo_chamber": {
+        "name": "Echo Chamber",
+        "sort_order": 2,
+        "description": "Spacious reverb with trailing echo",
+        "effects_chain": [
+            {
+                "type": "reverb",
+                "enabled": True,
+                "params": {
+                    "room_size": 0.85,
+                    "damping": 0.3,
+                    "wet_level": 0.45,
+                    "dry_level": 0.55,
+                    "width": 1.0,
+                },
+            },
+            {
+                "type": "delay",
+                "enabled": True,
+                "params": {
+                    "delay_seconds": 0.25,
+                    "feedback": 0.3,
+                    "mix": 0.2,
+                },
+            },
+        ],
+    },
+    "deep_voice": {
+        "name": "Deep Voice",
+        "sort_order": 99,
+        "description": "Lower pitch with added warmth",
+        "effects_chain": [
+            {
+                "type": "pitch_shift",
+                "enabled": True,
+                "params": {"semitones": -3.0},
+            },
+            {
+                "type": "lowpass",
+                "enabled": True,
+                "params": {"cutoff_frequency_hz": 6000.0},
+            },
+            {
+                "type": "compressor",
+                "enabled": True,
+                "params": {
+                    "threshold_db": -18.0,
+                    "ratio": 3.0,
+                    "attack_ms": 10.0,
+                    "release_ms": 150.0,
+                },
+            },
+        ],
+    },
+}
+
+
+# ---------------------------------------------------------------------------
+# Public API
+# ---------------------------------------------------------------------------
+
+def get_available_effects() -> List[Dict[str, Any]]:
+    """Return the list of available effect types with their parameter definitions.
+
+    Used by the frontend to build the effects chain editor UI.
+    """
+    result = []
+    for effect_type, info in EFFECT_REGISTRY.items():
+        result.append({
+            "type": effect_type,
+            "label": info["label"],
+            "description": info["description"],
+            "params": {
+                name: {k: v for k, v in pdef.items()}
+                for name, pdef in info["params"].items()
+            },
+        })
+    return result
+
+
+def get_builtin_presets() -> Dict[str, Dict[str, Any]]:
+    """Return all built-in effect presets."""
+    return BUILTIN_PRESETS
+
+
+def validate_effects_chain(effects_chain: List[Dict[str, Any]]) -> Optional[str]:
+    """Validate an effects chain configuration.
+
+    Returns None if valid, or an error message string.
+    """
+    if not isinstance(effects_chain, list):
+        return "effects_chain must be a list"
+
+    for i, effect in enumerate(effects_chain):
+        if not isinstance(effect, dict):
+            return f"Effect at index {i} must be a dict"
+
+        effect_type = effect.get("type")
+        if effect_type not in EFFECT_REGISTRY:
+            return f"Unknown effect type '{effect_type}' at index {i}. Available: {list(EFFECT_REGISTRY.keys())}"
+
+        params = effect.get("params", {})
+        if not isinstance(params, dict):
+            return f"Effect '{effect_type}' at index {i}: params must be a dict"
+
+        registry = EFFECT_REGISTRY[effect_type]
+        for param_name, value in params.items():
+            if param_name not in registry["params"]:
+                return f"Effect '{effect_type}' at index {i}: unknown param '{param_name}'"
+
+            pdef = registry["params"][param_name]
+            if not isinstance(value, (int, float)):
+                return f"Effect '{effect_type}' at index {i}: param '{param_name}' must be a number"
+            if value < pdef["min"] or value > pdef["max"]:
+                return (
+                    f"Effect '{effect_type}' at index {i}: param '{param_name}' "
+                    f"must be between {pdef['min']} and {pdef['max']} (got {value})"
+                )
+
+    return None
+
+
+def build_pedalboard(effects_chain: List[Dict[str, Any]]) -> Pedalboard:
+    """Build a Pedalboard instance from an effects chain config.
+
+    Skips effects where ``enabled`` is ``False``.
+    """
+    plugins = []
+    for effect in effects_chain:
+        if not effect.get("enabled", True):
+            continue
+
+        effect_type = effect["type"]
+        registry = EFFECT_REGISTRY[effect_type]
+        cls = registry["cls"]
+
+        # Merge defaults with provided params
+        params = {}
+        for pname, pdef in registry["params"].items():
+            params[pname] = effect.get("params", {}).get(pname, pdef["default"])
+
+        plugins.append(cls(**params))
+
+    return Pedalboard(plugins)
+
+
+def apply_effects(
+    audio: np.ndarray,
+    sample_rate: int,
+    effects_chain: List[Dict[str, Any]],
+) -> np.ndarray:
+    """Apply an effects chain to audio data.
+
+    Args:
+        audio: Input audio array (1-D mono float32).
+        sample_rate: Sample rate in Hz.
+        effects_chain: List of effect configuration dicts.
+
+    Returns:
+        Processed audio array.
+    """
+    if not effects_chain:
+        return audio
+
+    board = build_pedalboard(effects_chain)
+
+    # pedalboard expects shape (channels, samples)
+    if audio.ndim == 1:
+        audio_2d = audio[np.newaxis, :]
+    else:
+        audio_2d = audio
+
+    processed = board(audio_2d.astype(np.float32), sample_rate)
+
+    # Return same dimensionality as input
+    if audio.ndim == 1:
+        return processed[0]
+    return processed

backend/versions.py

@@ -0,0 +1,211 @@
+"""
+Generation versions management module.
+
+Each generation can have multiple audio versions: a clean (unprocessed)
+version and any number of processed versions with different effects chains.
+"""
+
+from __future__ import annotations
+
+import json
+import uuid
+from pathlib import Path
+from typing import List, Optional
+
+from sqlalchemy.orm import Session
+
+from .database import (
+    GenerationVersion as DBGenerationVersion,
+    Generation as DBGeneration,
+)
+from .models import GenerationVersionResponse, EffectConfig
+from . import config
+
+
+def _version_response(v: DBGenerationVersion) -> GenerationVersionResponse:
+    """Convert a DB version row to a Pydantic response."""
+    effects_chain = None
+    if v.effects_chain:
+        raw = json.loads(v.effects_chain)
+        effects_chain = [EffectConfig(**e) for e in raw]
+    return GenerationVersionResponse(
+        id=v.id,
+        generation_id=v.generation_id,
+        label=v.label,
+        audio_path=v.audio_path,
+        effects_chain=effects_chain,
+        source_version_id=v.source_version_id,
+        is_default=v.is_default,
+        created_at=v.created_at,
+    )
+
+
+def list_versions(generation_id: str, db: Session) -> List[GenerationVersionResponse]:
+    """List all versions for a generation."""
+    versions = (
+        db.query(DBGenerationVersion)
+        .filter_by(generation_id=generation_id)
+        .order_by(DBGenerationVersion.created_at)
+        .all()
+    )
+    return [_version_response(v) for v in versions]
+
+
+def get_version(version_id: str, db: Session) -> Optional[GenerationVersionResponse]:
+    """Get a specific version by ID."""
+    v = db.query(DBGenerationVersion).filter_by(id=version_id).first()
+    if not v:
+        return None
+    return _version_response(v)
+
+
+def get_default_version(generation_id: str, db: Session) -> Optional[GenerationVersionResponse]:
+    """Get the default version for a generation."""
+    v = (
+        db.query(DBGenerationVersion)
+        .filter_by(generation_id=generation_id, is_default=True)
+        .first()
+    )
+    if not v:
+        # Fallback: return the first version
+        v = (
+            db.query(DBGenerationVersion)
+            .filter_by(generation_id=generation_id)
+            .order_by(DBGenerationVersion.created_at)
+            .first()
+        )
+    if not v:
+        return None
+    return _version_response(v)
+
+
+def create_version(
+    generation_id: str,
+    label: str,
+    audio_path: str,
+    db: Session,
+    effects_chain: Optional[List[dict]] = None,
+    is_default: bool = False,
+    source_version_id: Optional[str] = None,
+) -> GenerationVersionResponse:
+    """Create a new version for a generation.
+
+    If ``is_default`` is True, all other versions for this generation
+    are un-defaulted first.
+    """
+    if is_default:
+        _clear_defaults(generation_id, db)
+
+    version = DBGenerationVersion(
+        id=str(uuid.uuid4()),
+        generation_id=generation_id,
+        label=label,
+        audio_path=audio_path,
+        effects_chain=json.dumps(effects_chain) if effects_chain else None,
+        source_version_id=source_version_id,
+        is_default=is_default,
+    )
+    db.add(version)
+    db.commit()
+    db.refresh(version)
+
+    # If this version is the default, update the generation's audio_path
+    if is_default:
+        gen = db.query(DBGeneration).filter_by(id=generation_id).first()
+        if gen:
+            gen.audio_path = audio_path
+            db.commit()
+
+    return _version_response(version)
+
+
+def set_default_version(version_id: str, db: Session) -> Optional[GenerationVersionResponse]:
+    """Set a version as the default for its generation."""
+    version = db.query(DBGenerationVersion).filter_by(id=version_id).first()
+    if not version:
+        return None
+
+    _clear_defaults(version.generation_id, db)
+    version.is_default = True
+    db.commit()
+    db.refresh(version)
+
+    # Update generation's audio_path to point to this version
+    gen = db.query(DBGeneration).filter_by(id=version.generation_id).first()
+    if gen:
+        gen.audio_path = version.audio_path
+        db.commit()
+
+    return _version_response(version)
+
+
+def delete_version(version_id: str, db: Session) -> bool:
+    """Delete a version. Cannot delete the last remaining version."""
+    version = db.query(DBGenerationVersion).filter_by(id=version_id).first()
+    if not version:
+        return False
+
+    # Don't allow deleting the last version
+    count = (
+        db.query(DBGenerationVersion)
+        .filter_by(generation_id=version.generation_id)
+        .count()
+    )
+    if count <= 1:
+        return False
+
+    was_default = version.is_default
+    gen_id = version.generation_id
+
+    # Delete audio file
+    audio_path = Path(version.audio_path)
+    if audio_path.exists():
+        audio_path.unlink()
+
+    db.delete(version)
+    db.commit()
+
+    # If this was the default, promote the first remaining version
+    if was_default:
+        first = (
+            db.query(DBGenerationVersion)
+            .filter_by(generation_id=gen_id)
+            .order_by(DBGenerationVersion.created_at)
+            .first()
+        )
+        if first:
+            first.is_default = True
+            db.commit()
+            gen = db.query(DBGeneration).filter_by(id=gen_id).first()
+            if gen:
+                gen.audio_path = first.audio_path
+                db.commit()
+
+    return True
+
+
+def delete_versions_for_generation(generation_id: str, db: Session) -> int:
+    """Delete all versions for a generation (used when deleting a generation)."""
+    versions = (
+        db.query(DBGenerationVersion)
+        .filter_by(generation_id=generation_id)
+        .all()
+    )
+    count = 0
+    for v in versions:
+        audio_path = Path(v.audio_path)
+        if audio_path.exists():
+            audio_path.unlink()
+        db.delete(v)
+        count += 1
+    if count > 0:
+        db.commit()
+    return count
+
+
+def _clear_defaults(generation_id: str, db: Session) -> None:
+    """Clear the is_default flag on all versions for a generation."""
+    db.query(DBGenerationVersion).filter_by(
+        generation_id=generation_id, is_default=True
+    ).update({"is_default": False})
+    db.flush()

justfile

@@ -8,12 +8,17 @@ tauri_dir := "tauri"
 app_dir := "app"
 web_dir := "web"
 venv := backend_dir / "venv"
-venv_bin := venv / "bin"
-python := venv_bin / "python"
-pip := venv_bin / "pip"
 
-# Detect best python for venv creation
+# Platform-aware paths
-system_python := `command -v python3.12 2>/dev/null || command -v python3.13 2>/dev/null || echo python3`
+venv_bin := if os() == "windows" { venv / "Scripts" } else { venv / "bin" }
+python := if os() == "windows" { venv_bin / "python.exe" } else { venv_bin / "python" }
+pip := if os() == "windows" { venv_bin / "pip.exe" } else { venv_bin / "pip" }
+
+# Shell selection: use powershell on Windows, bash elsewhere
+set windows-shell := ["powershell", "-NoProfile", "-Command"]
+
+# Detect best python for venv creation (platform-aware)
+system_python := if os() == "windows" { "python" } else { `command -v python3.12 2>/dev/null || command -v python3.13 2>/dev/null || echo python3` }
 
 # ─── Setup ────────────────────────────────────────────────────────────
 
@@ -23,6 +28,7 @@ setup: setup-python setup-js
     @echo "Setup complete! Run: just dev"
 
 # Create venv and install Python dependencies
+[unix]
 setup-python:
     #!/usr/bin/env bash
     set -euo pipefail
@@ -48,60 +54,136 @@ setup-python:
     {{ pip }} install git+https://github.com/QwenLM/Qwen3-TTS.git
     echo "Python environment ready."
 
+[windows]
+setup-python:
+    if (-not (Test-Path "{{ venv }}")) { \
+        Write-Host "Creating Python virtual environment..."; \
+        $pyMinor = & {{ system_python }} -c "import sys; print(sys.version_info[1])"; \
+        if ([int]$pyMinor -gt 13) { \
+            Write-Host "Warning: Python 3.$pyMinor detected. ML packages may not be compatible."; \
+        }; \
+        & {{ system_python }} -m venv {{ venv }}; \
+    }
+    Write-Host "Installing Python dependencies..."
+    & "{{ python }}" -m pip install --upgrade pip -q
+    $hasNvidia = $null -ne (Get-WmiObject Win32_VideoController | Where-Object { $_.Name -match 'NVIDIA' })
+    if ($hasNvidia) { \
+        Write-Host "NVIDIA GPU detected — installing PyTorch with CUDA support..."; \
+        & "{{ pip }}" install torch torchvision torchaudio --index-url https://download.pytorch.org/whl/cu126; \
+    }
+    & "{{ pip }}" install -r {{ backend_dir }}/requirements.txt
+    & "{{ pip }}" install --no-deps chatterbox-tts
+    & "{{ pip }}" install git+https://github.com/QwenLM/Qwen3-TTS.git
+    Write-Host "Python environment ready."
+
 # Install JavaScript dependencies
 setup-js:
     bun install
 
 # ─── Development ──────────────────────────────────────────────────────
 
-# Start backend + frontend for development (two processes, one terminal)
+# Start backend (if not already running) + frontend for development
+[unix]
 dev: _ensure-venv _ensure-sidecar
     #!/usr/bin/env bash
     set -euo pipefail
-    trap 'kill 0' EXIT
 
+    backend_pid=""
+    if curl -sf http://127.0.0.1:17493/health > /dev/null 2>&1; then
+        echo "Backend already running on http://localhost:17493"
+    else
         echo "Starting backend on http://localhost:17493 ..."
         {{ venv_bin }}/uvicorn backend.main:app --reload --port 17493 &
+        backend_pid=$!
         sleep 2
+    fi
+
+    trap '[ -n "$backend_pid" ] && kill "$backend_pid" 2>/dev/null; wait' EXIT
 
     echo "Starting Tauri desktop app..."
-    cd {{ tauri_dir }} && bun run tauri dev &
+    cd {{ tauri_dir }} && bun run tauri dev
 
-    wait
+[windows]
+dev: _ensure-venv _ensure-sidecar
+    $backendJob = $null
+    try { $null = Invoke-WebRequest -Uri "http://127.0.0.1:17493/health" -UseBasicParsing -TimeoutSec 2 -ErrorAction Stop; Write-Host "Backend already running on http://localhost:17493" } catch { \
+        Write-Host "Starting backend on http://localhost:17493 ..."; \
+        $backendJob = Start-Job -ScriptBlock { & "{{ python }}" -m uvicorn backend.main:app --reload --port 17493 } -WorkingDirectory (Get-Location); \
+        Start-Sleep -Seconds 2; \
+    }
+    Write-Host "Starting Tauri desktop app..."
+    try { Set-Location "{{ tauri_dir }}"; bun run tauri dev } finally { if ($backendJob) { Stop-Job $backendJob -ErrorAction SilentlyContinue; Remove-Job $backendJob -Force -ErrorAction SilentlyContinue } }
 
 # Start backend only
+[unix]
 dev-backend: _ensure-venv
     {{ venv_bin }}/uvicorn backend.main:app --reload --port 17493
 
+[windows]
+dev-backend: _ensure-venv
+    & "{{ python }}" -m uvicorn backend.main:app --reload --port 17493
+
 # Start Tauri desktop app only (backend must be running separately)
 dev-frontend: _ensure-sidecar
     cd {{ tauri_dir }} && bun run tauri dev
 
-# Start backend + web app (no Tauri)
+# Start backend (if not already running) + web app (no Tauri)
+[unix]
 dev-web: _ensure-venv
     #!/usr/bin/env bash
     set -euo pipefail
-    trap 'kill 0' EXIT
+
+    backend_pid=""
+    if curl -sf http://127.0.0.1:17493/health > /dev/null 2>&1; then
+        echo "Backend already running on http://localhost:17493"
+    else
+        echo "Starting backend on http://localhost:17493 ..."
         {{ venv_bin }}/uvicorn backend.main:app --reload --port 17493 &
+        backend_pid=$!
         sleep 2
-    cd {{ web_dir }} && bun run dev &
+    fi
-    wait
+
+    trap '[ -n "$backend_pid" ] && kill "$backend_pid" 2>/dev/null; wait' EXIT
+
+    cd {{ web_dir }} && bun run dev
+
+[windows]
+dev-web: _ensure-venv
+    $backendJob = $null
+    try { $null = Invoke-WebRequest -Uri "http://127.0.0.1:17493/health" -UseBasicParsing -TimeoutSec 2 -ErrorAction Stop; Write-Host "Backend already running on http://localhost:17493" } catch { \
+        Write-Host "Starting backend on http://localhost:17493 ..."; \
+        $backendJob = Start-Job -ScriptBlock { & "{{ python }}" -m uvicorn backend.main:app --reload --port 17493 } -WorkingDirectory (Get-Location); \
+        Start-Sleep -Seconds 2; \
+    }
+    Write-Host "Starting web app..."
+    try { Set-Location "{{ web_dir }}"; bun run dev } finally { if ($backendJob) { Stop-Job $backendJob -ErrorAction SilentlyContinue; Remove-Job $backendJob -Force -ErrorAction SilentlyContinue } }
 
 # Kill all dev processes
+[unix]
 kill:
     -pkill -f "uvicorn backend.main:app" 2>/dev/null || true
     -pkill -f "vite" 2>/dev/null || true
     @echo "Dev processes killed."
 
+[windows]
+kill:
+    Get-Process -ErrorAction SilentlyContinue | Where-Object { $_.CommandLine -like '*uvicorn*backend.main*' -or $_.CommandLine -like '*vite*' } | Stop-Process -Force -ErrorAction SilentlyContinue
+    Write-Host "Dev processes killed."
+
 # ─── Build ────────────────────────────────────────────────────────────
 
 # Build everything (server binary + desktop app)
 build: build-server build-tauri
 
 # Build Python server binary
+[unix]
 build-server: _ensure-venv
     PATH="{{ venv_bin }}:$PATH" ./scripts/build-server.sh
 
+[windows]
+build-server: _ensure-venv
+    $env:PATH = "{{ venv_bin }};$env:PATH"; & "{{ python }}" -m PyInstaller backend/voicebox-server.spec
+
 # Build Tauri desktop app
 build-tauri:
     cd {{ tauri_dir }} && bun run tauri build
@@ -135,38 +217,73 @@ db-init: _ensure-venv
     cd {{ backend_dir }} && {{ python }} -c "from database import init_db; init_db()"
 
 # Reset database (delete + reinit)
+[unix]
 db-reset:
     rm -f {{ backend_dir }}/data/voicebox.db
     just db-init
 
+[windows]
+db-reset:
+    if (Test-Path "{{ backend_dir }}/data/voicebox.db") { Remove-Item -Force "{{ backend_dir }}/data/voicebox.db" }
+    just db-init
+
 # ─── Utilities ────────────────────────────────────────────────────────
 
 # Generate TypeScript API client (backend must be running)
+[unix]
 generate-api:
     ./scripts/generate-api.sh
 
+[windows]
+generate-api:
+    bash scripts/generate-api.sh
+
 # Open API docs in browser
+[unix]
 docs:
     open http://localhost:17493/docs 2>/dev/null || xdg-open http://localhost:17493/docs
 
+[windows]
+docs:
+    Start-Process "http://localhost:17493/docs"
+
 # Tail backend logs
+[unix]
 logs:
     tail -f {{ backend_dir }}/logs/*.log 2>/dev/null || echo "No log files found"
 
+[windows]
+logs:
+    Get-ChildItem {{ backend_dir }}/logs/*.log -ErrorAction SilentlyContinue | ForEach-Object { Get-Content $_.FullName -Tail 50 -Wait } ; if (-not $?) { Write-Host "No log files found" }
+
 # ─── Clean ────────────────────────────────────────────────────────────
 
 # Clean build artifacts
+[unix]
 clean:
     rm -rf {{ tauri_dir }}/src-tauri/target/release
     rm -rf {{ web_dir }}/dist
     rm -rf {{ app_dir }}/dist
 
+[windows]
+clean:
+    if (Test-Path "{{ tauri_dir }}/src-tauri/target/release") { Remove-Item -Recurse -Force "{{ tauri_dir }}/src-tauri/target/release" }
+    if (Test-Path "{{ web_dir }}/dist") { Remove-Item -Recurse -Force "{{ web_dir }}/dist" }
+    if (Test-Path "{{ app_dir }}/dist") { Remove-Item -Recurse -Force "{{ app_dir }}/dist" }
+
 # Clean Python venv and cache
+[unix]
 clean-python:
     rm -rf {{ venv }}
     find {{ backend_dir }} -type d -name "__pycache__" -exec rm -rf {} + 2>/dev/null || true
 
+[windows]
+clean-python:
+    if (Test-Path "{{ venv }}") { Remove-Item -Recurse -Force "{{ venv }}" }
+    Get-ChildItem -Path "{{ backend_dir }}" -Directory -Recurse -Filter "__pycache__" -ErrorAction SilentlyContinue | Remove-Item -Recurse -Force
+
 # Nuclear clean (everything including node_modules)
+[unix]
 clean-all: clean clean-python
     rm -rf node_modules
     rm -rf {{ app_dir }}/node_modules
@@ -174,10 +291,18 @@ clean-all: clean clean-python
     rm -rf {{ web_dir }}/node_modules
     cd {{ tauri_dir }}/src-tauri && cargo clean
 
+[windows]
+clean-all: clean clean-python
+    if (Test-Path "node_modules") { Remove-Item -Recurse -Force "node_modules" }
+    if (Test-Path "{{ app_dir }}/node_modules") { Remove-Item -Recurse -Force "{{ app_dir }}/node_modules" }
+    if (Test-Path "{{ tauri_dir }}/node_modules") { Remove-Item -Recurse -Force "{{ tauri_dir }}/node_modules" }
+    if (Test-Path "{{ web_dir }}/node_modules") { Remove-Item -Recurse -Force "{{ web_dir }}/node_modules" }
+    Push-Location "{{ tauri_dir }}/src-tauri"; cargo clean; Pop-Location
+
 # ─── Internal ─────────────────────────────────────────────────────────
 
 # Ensure venv exists (prompt to run setup if not)
-[private]
+[private, unix]
 _ensure-venv:
     #!/usr/bin/env bash
     if [ ! -d "{{ venv }}" ]; then
@@ -185,6 +310,10 @@ _ensure-venv:
         exit 1
     fi
 
+[private, windows]
+_ensure-venv:
+    if (-not (Test-Path "{{ venv }}")) { Write-Host "Python venv not found. Run: just setup"; exit 1 }
+
 # Ensure Tauri dev sidecar placeholder exists
 [private]
 _ensure-sidecar:

landing/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@voicebox/landing",
-  "version": "0.1.13",
+  "version": "0.2.0",
   "description": "Landing page for voicebox.sh",
   "scripts": {
     "dev": "bun --bun next dev --turbo",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "voicebox",
-  "version": "0.1.13",
+  "version": "0.2.0",
   "private": true,
   "workspaces": [
     "app",

tauri/package.json

@@ -1,7 +1,7 @@
 {
   "name": "@voicebox/tauri",
   "private": true,
-  "version": "0.1.13",
+  "version": "0.2.0",
   "type": "module",
   "scripts": {
     "dev": "vite",

tauri/src-tauri/Cargo.lock

@@ -5041,7 +5041,7 @@ checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
 
 [[package]]
 name = "voicebox"
-version = "0.1.13"
+version = "0.2.0"
 dependencies = [
  "base64 0.22.1",
  "core-foundation-sys",

tauri/src-tauri/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "voicebox"
-version = "0.1.13"
+version = "0.2.0"
 description = "A production-quality desktop app for Qwen3-TTS voice cloning and generation"
 authors = ["you"]
 license = ""

tauri/src-tauri/tauri.conf.json

@@ -1,7 +1,7 @@
 {
   "$schema": "https://schema.tauri.app/config/2",
   "productName": "Voicebox",
-  "version": "0.1.13",
+  "version": "0.2.0",
   "identifier": "sh.voicebox.app",
   "build": {
     "beforeDevCommand": "bun run dev",

tauri/src/platform/filesystem.ts

@@ -1,4 +1,4 @@
-import type { PlatformFilesystem, FileFilter } from '@/platform/types';
+import type { FileFilter, PlatformFilesystem } from '@/platform/types';
 
 export const tauriFilesystem: PlatformFilesystem = {
   async saveFile(filename: string, blob: Blob, filters?: FileFilter[]) {
@@ -12,9 +12,8 @@ export const tauriFilesystem: PlatformFilesystem = {
 
     if (!filePath) return; // User cancelled the dialog
 
-    const resolvedPath = typeof filePath === 'string'
+    const resolvedPath =
-      ? filePath
+      typeof filePath === 'string' ? filePath : (filePath as { path: string }).path;
-      : (filePath as { path: string }).path;
 
     if (!resolvedPath) {
       throw new Error('Failed to resolve save path from dialog');
@@ -23,4 +22,17 @@ export const tauriFilesystem: PlatformFilesystem = {
     const arrayBuffer = await blob.arrayBuffer();
     await writeFile(resolvedPath, new Uint8Array(arrayBuffer));
   },
+
+  async openPath(path: string) {
+    const { open } = await import('@tauri-apps/plugin-shell');
+    await open(path);
+  },
+
+  async pickDirectory(title: string) {
+    const { open } = await import('@tauri-apps/plugin-dialog');
+    const selected = await open({ directory: true, title });
+    if (!selected) return null;
+    const dir = typeof selected === 'string' ? selected : (selected as { path: string }).path;
+    return dir || null;
+  },
 };

web/package.json

@@ -1,7 +1,7 @@
 {
   "name": "@voicebox/web",
   "private": true,
-  "version": "0.1.13",
+  "version": "0.2.0",
   "type": "module",
   "scripts": {
     "dev": "vite",

web/src/platform/filesystem.ts

@@ -1,4 +1,4 @@
-import type { PlatformFilesystem, FileFilter } from '@/platform/types';
+import type { FileFilter, PlatformFilesystem } from '@/platform/types';
 
 export const webFilesystem: PlatformFilesystem = {
   async saveFile(filename: string, blob: Blob, _filters?: FileFilter[]) {
@@ -12,4 +12,12 @@ export const webFilesystem: PlatformFilesystem = {
     window.URL.revokeObjectURL(url);
     document.body.removeChild(a);
   },
+
+  async openPath(_path: string) {
+    // No filesystem access in browser
+  },
+
+  async pickDirectory(_title: string) {
+    return null;
+  },
 };