Implement story management features and update dependencies

- Introduced story management functionality, including creating, listing, and managing story items.
- Added new components for story display and interaction, including StoriesTab, StoryList, and StoryContent.
- Integrated drag-and-drop functionality for reordering story items using @dnd-kit.
- Updated dependencies for @dnd-kit packages to enhance drag-and-drop capabilities.
- Bumped version for @voicebox/app, @voicebox/landing, @voicebox/tauri, and @voicebox/web to 0.1.5.
- Enhanced audio playback features to support story mode with auto-play functionality.
- Improved error handling and user feedback through toast notifications in story-related actions.

app/package.json

@@ -13,6 +13,9 @@
     "check": "biome check --write src"
   },
   "dependencies": {
+    "@dnd-kit/core": "^6.3.1",
+    "@dnd-kit/sortable": "^10.0.0",
+    "@dnd-kit/utilities": "^3.2.2",
     "@hookform/resolvers": "^3.9.0",
     "@radix-ui/react-alert-dialog": "^1.1.1",
     "@radix-ui/react-avatar": "^1.1.0",

app/src/components/AudioPlayer/AudioPlayer.tsx

@@ -402,6 +402,11 @@ export function AudioPlayer() {
           wavesurfer.play();
         } else {
           setIsPlaying(false);
+          // Trigger finish callback if set
+          const onFinish = usePlayerStore.getState().onFinish;
+          if (onFinish) {
+            onFinish();
+          }
         }
       });
 
@@ -653,6 +658,29 @@ export function AudioPlayer() {
     clearRestartFlag();
   }, [shouldRestart, duration, setIsPlaying, clearRestartFlag]);
 
+  // Handle shouldAutoPlay flag - for story mode auto-advance
+  const shouldAutoPlay = usePlayerStore((state) => state.shouldAutoPlay);
+  const clearAutoPlayFlag = usePlayerStore((state) => state.clearAutoPlayFlag);
+  
+  useEffect(() => {
+    const wavesurfer = wavesurferRef.current;
+    if (!wavesurfer || !shouldAutoPlay || duration === 0) {
+      return;
+    }
+
+    // Auto-play the newly loaded audio
+    debug.log('Auto-playing next track in story mode');
+    wavesurfer.seekTo(0);
+    wavesurfer.play().catch((error) => {
+      debug.error('Failed to auto-play:', error);
+      setIsPlaying(false);
+      setError(`Playback error: ${error instanceof Error ? error.message : String(error)}`);
+    });
+
+    // Clear the auto-play flag
+    clearAutoPlayFlag();
+  }, [shouldAutoPlay, duration, setIsPlaying, clearAutoPlayFlag]);
+
   // Handle loop - WaveSurfer handles this via the 'finish' event
 
   const handlePlayPause = async () => {

app/src/components/Generation/FloatingGenerateBox.tsx

@@ -1,6 +1,7 @@
 import { AnimatePresence, motion } from 'framer-motion';
-import { Loader2, Sparkles } from 'lucide-react';
+import { Loader2, MessageSquare, Sparkles } from 'lucide-react';
 import { useEffect, useRef, useState } from 'react';
+import { useMatchRoute } from '@tanstack/react-router';
 import { Button } from '@/components/ui/button';
 import { Form, FormControl, FormField, FormItem, FormMessage } from '@/components/ui/form';
 import {
@@ -13,22 +14,55 @@ import {
 import { Textarea } from '@/components/ui/textarea';
 import { LANGUAGE_OPTIONS } from '@/lib/constants/languages';
 import { useGenerationForm } from '@/lib/hooks/useGenerationForm';
-import { useProfile } from '@/lib/hooks/useProfiles';
+import { useProfile, useProfiles } from '@/lib/hooks/useProfiles';
+import { useStory, useAddStoryItem } from '@/lib/hooks/useStories';
 import { useUIStore } from '@/stores/uiStore';
+import { useStoryStore } from '@/stores/storyStore';
+import { useToast } from '@/components/ui/use-toast';
+import { cn } from '@/lib/utils/cn';
 
 interface FloatingGenerateBoxProps {
   isPlayerOpen: boolean;
+  showVoiceSelector?: boolean;
 }
 
-export function FloatingGenerateBox({ isPlayerOpen }: FloatingGenerateBoxProps) {
+export function FloatingGenerateBox({ isPlayerOpen, showVoiceSelector = false }: FloatingGenerateBoxProps) {
   const selectedProfileId = useUIStore((state) => state.selectedProfileId);
+  const setSelectedProfileId = useUIStore((state) => state.setSelectedProfileId);
   const { data: selectedProfile } = useProfile(selectedProfileId || '');
+  const { data: profiles } = useProfiles();
   const [isExpanded, setIsExpanded] = useState(false);
+  const [isInstructMode, setIsInstructMode] = useState(false);
   const containerRef = useRef<HTMLDivElement>(null);
+  const matchRoute = useMatchRoute();
+  const isStoriesRoute = matchRoute({ to: '/stories' });
+  const selectedStoryId = useStoryStore((state) => state.selectedStoryId);
+  const { data: currentStory } = useStory(selectedStoryId);
+  const addStoryItem = useAddStoryItem();
+  const { toast } = useToast();
 
   const { form, handleSubmit, isPending } = useGenerationForm({
-    onSuccess: () => {
+    onSuccess: async (generationId) => {
       setIsExpanded(false);
+      // If on stories route and a story is selected, add generation to story
+      if (isStoriesRoute && selectedStoryId && generationId) {
+        try {
+          await addStoryItem.mutateAsync({
+            storyId: selectedStoryId,
+            data: { generation_id: generationId },
+          });
+          toast({
+            title: 'Added to story',
+            description: `Generation added to "${currentStory?.name || 'story'}"`,
+          });
+        } catch (error) {
+          toast({
+            title: 'Failed to add to story',
+            description: error instanceof Error ? error.message : 'Could not add generation to story',
+            variant: 'destructive',
+          });
+        }
+      }
     },
   });
 
@@ -69,7 +103,12 @@ export function FloatingGenerateBox({ isPlayerOpen }: FloatingGenerateBoxProps)
   return (
     <motion.div
       ref={containerRef}
-      className="fixed left-[calc(5rem+2rem)] right-auto w-[calc((100%-5rem-4rem)/2-1rem)]"
+      className={cn(
+        'fixed right-auto',
+        isStoriesRoute
+          ? 'left-[calc(5rem+2rem+((100%-5rem-4rem)/2)+1.5rem)] w-[calc((100%-5rem-4rem)/2-1rem)]'
+          : 'left-[calc(5rem+2rem)] w-[calc((100%-5rem-4rem)/2-1rem)]',
+      )}
       style={{
         bottom: isPlayerOpen ? 'calc(7rem + 1.5rem)' : '1.5rem',
       }}
@@ -85,15 +124,24 @@ export function FloatingGenerateBox({ isPlayerOpen }: FloatingGenerateBoxProps)
                 className="flex-1"
                 transition={{ duration: 0.3, ease: 'easeOut' }}
               >
+                {isInstructMode && (
+                  <span className="text-xs text-accent font-medium mb-1 block">
+                    Delivery instructions:
+                  </span>
+                )}
                 <FormField
                   control={form.control}
-                  name="text"
+                  name={isInstructMode ? 'instruct' : 'text'}
                   render={({ field }) => (
                     <FormItem>
                       <FormControl>
                         <Textarea
                           placeholder={
-                            selectedProfile
+                            isInstructMode
+                              ? 'Add delivery instructions...'
+                              : isStoriesRoute && currentStory
+                                ? `Generate speech for "${currentStory.name}"...`
+                                : selectedProfile
                                   ? `Generate speech using ${selectedProfile.name}...`
                                   : 'Select a voice profile above...'
                           }
@@ -114,10 +162,11 @@ export function FloatingGenerateBox({ isPlayerOpen }: FloatingGenerateBoxProps)
                 />
               </motion.div>
 
+              <div className="relative shrink-0">
                 <Button
                   type="submit"
                   disabled={isPending || !selectedProfileId}
-                className="h-10 w-10 rounded-full bg-accent hover:bg-accent/90 hover:scale-105 text-accent-foreground shadow-lg hover:shadow-accent/50 shrink-0 transition-all duration-200"
+                  className="h-10 w-10 rounded-full bg-accent hover:bg-accent/90 hover:scale-105 text-accent-foreground shadow-lg hover:shadow-accent/50 transition-all duration-200"
                   size="icon"
                 >
                   {isPending ? (
@@ -126,6 +175,30 @@ export function FloatingGenerateBox({ isPlayerOpen }: FloatingGenerateBoxProps)
                     <Sparkles className="h-4 w-4" />
                   )}
                 </Button>
+                <AnimatePresence>
+                  {isExpanded && (
+                    <motion.div
+                      initial={{ opacity: 0, scale: 0.8 }}
+                      animate={{ opacity: 1, scale: 1 }}
+                      exit={{ opacity: 0, scale: 0.8 }}
+                      transition={{ duration: 0.2 }}
+                      className="absolute top-0 right-[calc(100%+0.5rem)]"
+                    >
+                      <Button
+                        type="button"
+                        variant="ghost"
+                        size="icon"
+                        onClick={() => setIsInstructMode(!isInstructMode)}
+                        className={`h-10 w-10 rounded-full bg-card border border-border hover:bg-background/50 transition-all duration-200 ${
+                          isInstructMode ? 'text-accent' : ''
+                        }`}
+                      >
+                        <MessageSquare className="h-4 w-4" />
+                      </Button>
+                    </motion.div>
+                  )}
+                </AnimatePresence>
+              </div>
             </div>
 
             <AnimatePresence>
@@ -137,6 +210,24 @@ export function FloatingGenerateBox({ isPlayerOpen }: FloatingGenerateBoxProps)
                 className=" mt-3"
               >
                 <div className="flex items-center gap-2">
+                  {showVoiceSelector && (
+                    <Select
+                      value={selectedProfileId || ''}
+                      onValueChange={(value) => setSelectedProfileId(value || null)}
+                    >
+                      <SelectTrigger className="h-8 text-xs bg-card border-border rounded-full hover:bg-background/50 transition-all flex-1">
+                        <SelectValue placeholder="Select a voice..." />
+                      </SelectTrigger>
+                      <SelectContent>
+                        {profiles?.map((profile) => (
+                          <SelectItem key={profile.id} value={profile.id} className="text-xs">
+                            {profile.name}
+                          </SelectItem>
+                        ))}
+                      </SelectContent>
+                    </Select>
+                  )}
+
                   <FormField
                     control={form.control}
                     name="language"

app/src/components/Sidebar.tsx

@@ -1,5 +1,5 @@
 import { Link, useMatchRoute } from '@tanstack/react-router';
-import { Box, Loader2, Mic, Server, Speaker, Volume2 } from 'lucide-react';
+import { Box, BookOpen, Loader2, Mic, Server, Speaker, Volume2 } from 'lucide-react';
 import voiceboxLogo from '@/assets/voicebox-logo.png';
 import { cn } from '@/lib/utils/cn';
 import { useGenerationStore } from '@/stores/generationStore';
@@ -11,6 +11,7 @@ interface SidebarProps {
 
 const tabs = [
   { id: 'main', path: '/', icon: Volume2, label: 'Generate' },
+  { id: 'stories', path: '/stories', icon: BookOpen, label: 'Stories' },
   { id: 'voices', path: '/voices', icon: Mic, label: 'Voices' },
   { id: 'audio', path: '/audio', icon: Speaker, label: 'Audio' },
   { id: 'models', path: '/models', icon: Box, label: 'Models' },

app/src/components/StoriesTab/StoriesTab.tsx

@@ -0,0 +1,25 @@
+import { FloatingGenerateBox } from '@/components/Generation/FloatingGenerateBox';
+import { StoryContent } from './StoryContent';
+import { StoryList } from './StoryList';
+import { usePlayerStore } from '@/stores/playerStore';
+
+export function StoriesTab() {
+  const audioUrl = usePlayerStore((state) => state.audioUrl);
+
+  return (
+    <div className="grid grid-cols-1 lg:grid-cols-2 gap-6 h-full min-h-0 overflow-hidden relative">
+      {/* Left Column - Story List */}
+      <div className="flex flex-col min-h-0 overflow-hidden">
+        <StoryList />
+      </div>
+
+      {/* Right Column - Story Content */}
+      <div className="flex flex-col min-h-0 overflow-hidden">
+        <StoryContent />
+      </div>
+
+      {/* Floating Generate Box */}
+      <FloatingGenerateBox isPlayerOpen={!!audioUrl} showVoiceSelector />
+    </div>
+  );
+}

app/src/components/StoriesTab/StoryChatItem.tsx

@@ -0,0 +1,160 @@
+import { useSortable } from '@dnd-kit/sortable';
+import { CSS } from '@dnd-kit/utilities';
+import { GripVertical, Mic, MoreHorizontal, Play, Trash2 } from 'lucide-react';
+import { Button } from '@/components/ui/button';
+import {
+  DropdownMenu,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuTrigger,
+} from '@/components/ui/dropdown-menu';
+import { Textarea } from '@/components/ui/textarea';
+import type { StoryItemDetail } from '@/lib/api/types';
+import { cn } from '@/lib/utils/cn';
+import { useStoryStore } from '@/stores/storyStore';
+
+interface StoryChatItemProps {
+  item: StoryItemDetail;
+  storyId: string;
+  index: number;
+  onRemove: () => void;
+  currentTimeMs: number;
+  isPlaying: boolean;
+  dragHandleProps?: React.HTMLAttributes<HTMLButtonElement>;
+  isDragging?: boolean;
+}
+
+export function StoryChatItem({
+  item,
+  onRemove,
+  currentTimeMs,
+  isPlaying,
+  dragHandleProps,
+  isDragging,
+}: StoryChatItemProps) {
+  const seek = useStoryStore((state) => state.seek);
+
+  // Check if this item is currently playing based on timecode
+  const itemStartMs = item.start_time_ms;
+  const itemEndMs = item.start_time_ms + item.duration * 1000;
+  const isCurrentlyPlaying = isPlaying && currentTimeMs >= itemStartMs && currentTimeMs < itemEndMs;
+
+  const handlePlay = () => {
+    // Seek to the start of this item
+    seek(itemStartMs);
+  };
+
+  const formatTime = (ms: number): string => {
+    const totalSeconds = Math.floor(ms / 1000);
+    const minutes = Math.floor(totalSeconds / 60);
+    const seconds = totalSeconds % 60;
+    const milliseconds = Math.floor((ms % 1000) / 100);
+    return `${minutes}:${seconds.toString().padStart(2, '0')}.${milliseconds}`;
+  };
+
+  return (
+    <div
+      className={cn(
+        'flex items-start gap-3 p-4 rounded-lg border transition-colors',
+        isCurrentlyPlaying && 'bg-muted/70 border-primary',
+        !isCurrentlyPlaying && 'hover:bg-muted/50',
+        isDragging && 'opacity-50 shadow-lg',
+      )}
+    >
+      {/* Drag Handle */}
+      {dragHandleProps && (
+        <button
+          type="button"
+          className="shrink-0 cursor-grab active:cursor-grabbing touch-none text-muted-foreground hover:text-foreground transition-colors"
+          {...dragHandleProps}
+        >
+          <GripVertical className="h-5 w-5" />
+        </button>
+      )}
+
+      {/* Voice Icon */}
+      <div className="shrink-0">
+        <div className="h-10 w-10 rounded-full bg-muted flex items-center justify-center">
+          <Mic className="h-5 w-5 text-muted-foreground" />
+        </div>
+      </div>
+
+      {/* Content */}
+      <div className="flex-1 min-w-0">
+        <div className="flex items-center gap-2 mb-2">
+          <span className="font-medium text-sm">{item.profile_name}</span>
+          <span className="text-xs text-muted-foreground">{item.language}</span>
+          <span className="text-xs text-muted-foreground tabular-nums ml-auto">
+            {formatTime(itemStartMs)}
+          </span>
+        </div>
+        <button
+          type="button"
+          className="w-full text-left cursor-pointer"
+          onClick={(e) => {
+            // Don't trigger play if clicking on textarea or if text is selected
+            const target = e.target as HTMLElement;
+            if (target.closest('textarea') || window.getSelection()?.toString()) {
+              return;
+            }
+            handlePlay();
+          }}
+        >
+          <Textarea
+            value={item.text}
+            className="flex-1 resize-none text-sm text-muted-foreground select-text pointer-events-none bg-card"
+            readOnly
+          />
+        </button>
+      </div>
+
+      {/* Actions */}
+      <div className="shrink-0">
+        <DropdownMenu>
+          <DropdownMenuTrigger asChild>
+            <Button variant="ghost" size="icon" className="h-8 w-8" aria-label="Actions">
+              <MoreHorizontal className="h-4 w-4" />
+            </Button>
+          </DropdownMenuTrigger>
+          <DropdownMenuContent align="end">
+            <DropdownMenuItem onClick={handlePlay}>
+              <Play className="mr-2 h-4 w-4" />
+              Play from here
+            </DropdownMenuItem>
+            <DropdownMenuItem onClick={onRemove} className="text-destructive focus:text-destructive">
+              <Trash2 className="mr-2 h-4 w-4" />
+              Remove from Story
+            </DropdownMenuItem>
+          </DropdownMenuContent>
+        </DropdownMenu>
+      </div>
+    </div>
+  );
+}
+
+// Sortable wrapper component
+export function SortableStoryChatItem(props: Omit<StoryChatItemProps, 'dragHandleProps' | 'isDragging'>) {
+  const {
+    attributes,
+    listeners,
+    setNodeRef,
+    transform,
+    transition,
+    isDragging,
+  } = useSortable({ id: props.item.generation_id });
+
+  const style = {
+    transform: CSS.Transform.toString(transform),
+    transition,
+  };
+
+  return (
+    <div ref={setNodeRef} style={style} {...attributes}>
+      <StoryChatItem
+        {...props}
+        dragHandleProps={listeners}
+        isDragging={isDragging}
+      />
+    </div>
+  );
+}

app/src/components/StoriesTab/StoryContent.tsx

@@ -0,0 +1,304 @@
+import {
+  DndContext,
+  closestCenter,
+  KeyboardSensor,
+  PointerSensor,
+  useSensor,
+  useSensors,
+  type DragEndEvent,
+} from '@dnd-kit/core';
+import {
+  arrayMove,
+  SortableContext,
+  sortableKeyboardCoordinates,
+  verticalListSortingStrategy,
+} from '@dnd-kit/sortable';
+import { Download, Pause, Play } from 'lucide-react';
+import { useMemo, useRef } from 'react';
+import { Button } from '@/components/ui/button';
+import { useToast } from '@/components/ui/use-toast';
+import { BOTTOM_SAFE_AREA_PADDING } from '@/lib/constants/ui';
+import { Slider } from '@/components/ui/slider';
+import { useStory, useRemoveStoryItem, useExportStoryAudio, useReorderStoryItems } from '@/lib/hooks/useStories';
+import { useStoryStore } from '@/stores/storyStore';
+import { usePlayerStore } from '@/stores/playerStore';
+import { SortableStoryChatItem } from './StoryChatItem';
+import { cn } from '@/lib/utils/cn';
+import { useStoryPlayback } from '@/lib/hooks/useStoryPlayback';
+
+export function StoryContent() {
+  const selectedStoryId = useStoryStore((state) => state.selectedStoryId);
+  const { data: story, isLoading } = useStory(selectedStoryId);
+  const removeItem = useRemoveStoryItem();
+  const reorderItems = useReorderStoryItems();
+  const exportAudio = useExportStoryAudio();
+  const { toast } = useToast();
+  const scrollRef = useRef<HTMLDivElement>(null);
+  const audioUrl = usePlayerStore((state) => state.audioUrl);
+  const isPlayerVisible = !!audioUrl;
+
+  // Drag and drop sensors
+  const sensors = useSensors(
+    useSensor(PointerSensor, {
+      activationConstraint: {
+        distance: 8,
+      },
+    }),
+    useSensor(KeyboardSensor, {
+      coordinateGetter: sortableKeyboardCoordinates,
+    }),
+  );
+
+  // Playback state
+  const isPlaying = useStoryStore((state) => state.isPlaying);
+  const currentTimeMs = useStoryStore((state) => state.currentTimeMs);
+  const totalDurationMs = useStoryStore((state) => state.totalDurationMs);
+  const playbackStoryId = useStoryStore((state) => state.playbackStoryId);
+  const play = useStoryStore((state) => state.play);
+  const pause = useStoryStore((state) => state.pause);
+  const stop = useStoryStore((state) => state.stop);
+  const seek = useStoryStore((state) => state.seek);
+
+  // Use playback hook
+  useStoryPlayback(story?.items);
+
+  // Sort items by start_time_ms
+  const sortedItems = useMemo(() => {
+    if (!story?.items) return [];
+    return [...story.items].sort((a, b) => a.start_time_ms - b.start_time_ms);
+  }, [story?.items]);
+
+  const handleRemoveItem = (generationId: string) => {
+    if (!story) return;
+
+    removeItem.mutate(
+      {
+        storyId: story.id,
+        generationId,
+      },
+      {
+        onError: (error) => {
+          toast({
+            title: 'Failed to remove item',
+            description: error.message,
+            variant: 'destructive',
+          });
+        },
+      },
+    );
+  };
+
+  const handleDragEnd = (event: DragEndEvent) => {
+    const { active, over } = event;
+
+    if (!story || !over || active.id === over.id) return;
+
+    const oldIndex = sortedItems.findIndex((item) => item.generation_id === active.id);
+    const newIndex = sortedItems.findIndex((item) => item.generation_id === over.id);
+
+    if (oldIndex === -1 || newIndex === -1) return;
+
+    // Calculate the new order
+    const newOrder = arrayMove(sortedItems, oldIndex, newIndex);
+    const generationIds = newOrder.map((item) => item.generation_id);
+
+    // Send reorder request to backend
+    reorderItems.mutate(
+      {
+        storyId: story.id,
+        data: { generation_ids: generationIds },
+      },
+      {
+        onError: (error) => {
+          toast({
+            title: 'Failed to reorder items',
+            description: error.message,
+            variant: 'destructive',
+          });
+        },
+      },
+    );
+  };
+
+  const handlePlayPause = () => {
+    if (!story || story.items.length === 0) return;
+
+    if (isPlaying && playbackStoryId === story.id) {
+      pause();
+    } else {
+      play(story.id, sortedItems);
+    }
+  };
+
+  const handleStop = () => {
+    stop();
+  };
+
+  const handleSeek = (value: number[]) => {
+    seek(value[0]);
+  };
+
+  const formatTime = (ms: number): string => {
+    const totalSeconds = Math.floor(ms / 1000);
+    const minutes = Math.floor(totalSeconds / 60);
+    const seconds = totalSeconds % 60;
+    const milliseconds = Math.floor((ms % 1000) / 100);
+    return `${minutes}:${seconds.toString().padStart(2, '0')}.${milliseconds}`;
+  };
+
+  const handleExportAudio = () => {
+    if (!story) return;
+
+    exportAudio.mutate(
+      {
+        storyId: story.id,
+        storyName: story.name,
+      },
+      {
+        onError: (error) => {
+          toast({
+            title: 'Failed to export audio',
+            description: error.message,
+            variant: 'destructive',
+          });
+        },
+      },
+    );
+  };
+
+  if (!selectedStoryId) {
+    return (
+      <div className="flex items-center justify-center h-full text-muted-foreground">
+        <div className="text-center">
+          <p className="text-lg font-medium mb-2">Select a story</p>
+          <p className="text-sm">Choose a story from the list to view its content</p>
+        </div>
+      </div>
+    );
+  }
+
+  if (isLoading) {
+    return (
+      <div className="flex items-center justify-center h-full">
+        <div className="text-muted-foreground">Loading story...</div>
+      </div>
+    );
+  }
+
+  if (!story) {
+    return (
+      <div className="flex items-center justify-center h-full text-muted-foreground">
+        <div className="text-center">
+          <p className="text-lg font-medium mb-2">Story not found</p>
+          <p className="text-sm">The selected story could not be loaded</p>
+        </div>
+      </div>
+    );
+  }
+
+  return (
+    <div className="flex flex-col h-full min-h-0">
+      {/* Header */}
+      <div className="flex flex-col gap-4 mb-4 px-1">
+        <div className="flex items-center justify-between">
+          <div>
+            <h2 className="text-2xl font-bold">{story.name}</h2>
+            {story.description && (
+              <p className="text-sm text-muted-foreground mt-1">{story.description}</p>
+            )}
+          </div>
+          <div className="flex gap-2">
+            {story.items.length > 0 && (
+              <>
+                <Button variant="outline" size="sm" onClick={handlePlayPause}>
+                  {isPlaying && playbackStoryId === story.id ? (
+                    <>
+                      <Pause className="mr-2 h-4 w-4" />
+                      Pause
+                    </>
+                  ) : (
+                    <>
+                      <Play className="mr-2 h-4 w-4" />
+                      Play
+                    </>
+                  )}
+                </Button>
+                {isPlaying && playbackStoryId === story.id && (
+                  <Button variant="outline" size="sm" onClick={handleStop}>
+                    Stop
+                  </Button>
+                )}
+                <Button variant="outline" size="sm" onClick={handleExportAudio} disabled={exportAudio.isPending}>
+                  <Download className="mr-2 h-4 w-4" />
+                  Export Audio
+                </Button>
+              </>
+            )}
+          </div>
+        </div>
+
+        {/* Playback Controls */}
+        {story.items.length > 0 && (
+          <div className="flex items-center gap-4">
+            <span className="text-xs text-muted-foreground tabular-nums min-w-16">
+              {formatTime(currentTimeMs)}
+            </span>
+            <Slider
+              value={[currentTimeMs]}
+              max={totalDurationMs || 1}
+              step={10}
+              onValueChange={handleSeek}
+              className="flex-1"
+              disabled={!isPlaying && playbackStoryId !== story.id}
+            />
+            <span className="text-xs text-muted-foreground tabular-nums min-w-16">
+              {formatTime(totalDurationMs)}
+            </span>
+          </div>
+        )}
+      </div>
+
+      {/* Content */}
+      <div
+        ref={scrollRef}
+        className={cn(
+          'flex-1 min-h-0 overflow-y-auto space-y-3',
+          isPlayerVisible && BOTTOM_SAFE_AREA_PADDING,
+        )}
+      >
+        {sortedItems.length === 0 ? (
+          <div className="text-center py-12 px-5 border-2 border-dashed border-muted rounded-md text-muted-foreground">
+            <p className="text-sm">No items in this story</p>
+            <p className="text-xs mt-2">Generate speech using the box below to add items</p>
+          </div>
+        ) : (
+          <DndContext
+            sensors={sensors}
+            collisionDetection={closestCenter}
+            onDragEnd={handleDragEnd}
+          >
+            <SortableContext
+              items={sortedItems.map((item) => item.generation_id)}
+              strategy={verticalListSortingStrategy}
+            >
+              <div className="space-y-3">
+                {sortedItems.map((item, index) => (
+                  <SortableStoryChatItem
+                    key={item.id}
+                    item={item}
+                    storyId={story.id}
+                    index={index}
+                    onRemove={() => handleRemoveItem(item.generation_id)}
+                    currentTimeMs={currentTimeMs}
+                    isPlaying={isPlaying && playbackStoryId === story.id}
+                  />
+                ))}
+              </div>
+            </SortableContext>
+          </DndContext>
+        )}
+      </div>
+    </div>
+  );
+}
+

app/src/components/StoriesTab/StoryList.tsx

@@ -0,0 +1,174 @@
+import { Plus, BookOpen } from 'lucide-react';
+import { useState } from 'react';
+import { Button } from '@/components/ui/button';
+import {
+  Dialog,
+  DialogContent,
+  DialogDescription,
+  DialogFooter,
+  DialogHeader,
+  DialogTitle,
+} from '@/components/ui/dialog';
+import { Input } from '@/components/ui/input';
+import { Textarea } from '@/components/ui/textarea';
+import { Label } from '@/components/ui/label';
+import { useToast } from '@/components/ui/use-toast';
+import { useStories, useCreateStory } from '@/lib/hooks/useStories';
+import { useStoryStore } from '@/stores/storyStore';
+import { cn } from '@/lib/utils/cn';
+import { formatDate } from '@/lib/utils/format';
+
+export function StoryList() {
+  const { data: stories, isLoading } = useStories();
+  const selectedStoryId = useStoryStore((state) => state.selectedStoryId);
+  const setSelectedStoryId = useStoryStore((state) => state.setSelectedStoryId);
+  const createStory = useCreateStory();
+  const [createDialogOpen, setCreateDialogOpen] = useState(false);
+  const [newStoryName, setNewStoryName] = useState('');
+  const [newStoryDescription, setNewStoryDescription] = useState('');
+  const { toast } = useToast();
+
+  const handleCreateStory = () => {
+    if (!newStoryName.trim()) {
+      toast({
+        title: 'Name required',
+        description: 'Please enter a story name',
+        variant: 'destructive',
+      });
+      return;
+    }
+
+    createStory.mutate(
+      {
+        name: newStoryName.trim(),
+        description: newStoryDescription.trim() || undefined,
+      },
+      {
+        onSuccess: (story) => {
+          setSelectedStoryId(story.id);
+          setCreateDialogOpen(false);
+          setNewStoryName('');
+          setNewStoryDescription('');
+          toast({
+            title: 'Story created',
+            description: `"${story.name}" has been created`,
+          });
+        },
+        onError: (error) => {
+          toast({
+            title: 'Failed to create story',
+            description: error.message,
+            variant: 'destructive',
+          });
+        },
+      },
+    );
+  };
+
+  if (isLoading) {
+    return (
+      <div className="flex items-center justify-center h-full">
+        <div className="text-muted-foreground">Loading stories...</div>
+      </div>
+    );
+  }
+
+  const storyList = stories || [];
+
+  return (
+    <div className="flex flex-col h-full min-h-0">
+      {/* Header */}
+      <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">
+          <Plus className="mr-2 h-4 w-4" />
+          New Story
+        </Button>
+      </div>
+
+      {/* Story List */}
+      <div className="flex-1 min-h-0 overflow-y-auto space-y-2">
+        {storyList.length === 0 ? (
+          <div className="text-center py-12 px-5 border-2 border-dashed border-muted rounded-md text-muted-foreground">
+            <BookOpen className="h-12 w-12 mx-auto mb-4 opacity-50" />
+            <p className="text-sm">No stories yet</p>
+            <p className="text-xs mt-2">Create your first story to get started</p>
+          </div>
+        ) : (
+          storyList.map((story) => (
+            <div
+              key={story.id}
+              className={cn(
+                'p-4 border rounded-md cursor-pointer hover:bg-muted/50 transition-colors',
+                selectedStoryId === story.id && 'bg-muted border-primary',
+              )}
+              onClick={() => setSelectedStoryId(story.id)}
+            >
+              <div className="flex items-start justify-between">
+                <div className="flex-1 min-w-0">
+                  <h3 className="font-medium truncate">{story.name}</h3>
+                  {story.description && (
+                    <p className="text-sm text-muted-foreground mt-1 line-clamp-2">
+                      {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>{formatDate(story.updated_at)}</span>
+                  </div>
+                </div>
+              </div>
+            </div>
+          ))
+        )}
+      </div>
+
+      {/* Create Story Dialog */}
+      <Dialog open={createDialogOpen} onOpenChange={setCreateDialogOpen}>
+        <DialogContent>
+          <DialogHeader>
+            <DialogTitle>Create New Story</DialogTitle>
+            <DialogDescription>
+              Create a new story to organize your voice generations into conversations.
+            </DialogDescription>
+          </DialogHeader>
+          <div className="space-y-4 py-4">
+            <div className="space-y-2">
+              <Label htmlFor="story-name">Name</Label>
+              <Input
+                id="story-name"
+                placeholder="My Story"
+                value={newStoryName}
+                onChange={(e) => setNewStoryName(e.target.value)}
+                onKeyDown={(e) => {
+                  if (e.key === 'Enter') {
+                    handleCreateStory();
+                  }
+                }}
+              />
+            </div>
+            <div className="space-y-2">
+              <Label htmlFor="story-description">Description (optional)</Label>
+              <Textarea
+                id="story-description"
+                placeholder="A conversation between..."
+                value={newStoryDescription}
+                onChange={(e) => setNewStoryDescription(e.target.value)}
+                rows={3}
+              />
+            </div>
+          </div>
+          <DialogFooter>
+            <Button variant="outline" onClick={() => setCreateDialogOpen(false)}>
+              Cancel
+            </Button>
+            <Button onClick={handleCreateStory} disabled={createStory.isPending}>
+              {createStory.isPending ? 'Creating...' : 'Create'}
+            </Button>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
+    </div>
+  );
+}

app/src/lib/api/client.ts

@@ -13,6 +13,13 @@ import type {
   ModelStatusListResponse,
   ModelDownloadRequest,
   ActiveTasksResponse,
+  StoryCreate,
+  StoryResponse,
+  StoryDetailResponse,
+  StoryItemCreate,
+  StoryItemDetail,
+  StoryItemBatchUpdate,
+  StoryItemReorder,
 } from './types';
 
 class ApiClient {
@@ -361,6 +368,76 @@ class ApiClient {
       body: JSON.stringify({ channel_ids: channelIds }),
     });
   }
+
+  // Stories
+  async listStories(): Promise<StoryResponse[]> {
+    return this.request<StoryResponse[]>('/stories');
+  }
+
+  async createStory(data: StoryCreate): Promise<StoryResponse> {
+    return this.request<StoryResponse>('/stories', {
+      method: 'POST',
+      body: JSON.stringify(data),
+    });
+  }
+
+  async getStory(storyId: string): Promise<StoryDetailResponse> {
+    return this.request<StoryDetailResponse>(`/stories/${storyId}`);
+  }
+
+  async updateStory(storyId: string, data: StoryCreate): Promise<StoryResponse> {
+    return this.request<StoryResponse>(`/stories/${storyId}`, {
+      method: 'PUT',
+      body: JSON.stringify(data),
+    });
+  }
+
+  async deleteStory(storyId: string): Promise<void> {
+    await this.request<void>(`/stories/${storyId}`, {
+      method: 'DELETE',
+    });
+  }
+
+  async addStoryItem(storyId: string, data: StoryItemCreate): Promise<StoryItemDetail> {
+    return this.request<StoryItemDetail>(`/stories/${storyId}/items`, {
+      method: 'POST',
+      body: JSON.stringify(data),
+    });
+  }
+
+  async removeStoryItem(storyId: string, generationId: string): Promise<void> {
+    await this.request<void>(`/stories/${storyId}/items/${generationId}`, {
+      method: 'DELETE',
+    });
+  }
+
+  async updateStoryItemTimes(storyId: string, data: StoryItemBatchUpdate): Promise<void> {
+    await this.request<void>(`/stories/${storyId}/items/times`, {
+      method: 'PUT',
+      body: JSON.stringify(data),
+    });
+  }
+
+  async reorderStoryItems(storyId: string, data: StoryItemReorder): Promise<StoryItemDetail[]> {
+    return this.request<StoryItemDetail[]>(`/stories/${storyId}/items/reorder`, {
+      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);
+
+    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

@@ -123,3 +123,61 @@ export interface ActiveTasksResponse {
   downloads: ActiveDownloadTask[];
   generations: ActiveGenerationTask[];
 }
+
+export interface StoryCreate {
+  name: string;
+  description?: string;
+}
+
+export interface StoryResponse {
+  id: string;
+  name: string;
+  description?: string;
+  created_at: string;
+  updated_at: string;
+  item_count: number;
+}
+
+export interface StoryItemDetail {
+  id: string;
+  story_id: string;
+  generation_id: string;
+  start_time_ms: number;
+  created_at: string;
+  profile_id: string;
+  profile_name: string;
+  text: string;
+  language: string;
+  audio_path: string;
+  duration: number;
+  seed?: number;
+  instruct?: string;
+  generation_created_at: string;
+}
+
+export interface StoryDetailResponse {
+  id: string;
+  name: string;
+  description?: string;
+  created_at: string;
+  updated_at: string;
+  items: StoryItemDetail[];
+}
+
+export interface StoryItemCreate {
+  generation_id: string;
+  start_time_ms?: number;
+}
+
+export interface StoryItemUpdateTime {
+  generation_id: string;
+  start_time_ms: number;
+}
+
+export interface StoryItemBatchUpdate {
+  updates: StoryItemUpdateTime[];
+}
+
+export interface StoryItemReorder {
+  generation_ids: string[];
+}

app/src/lib/hooks/useGenerationForm.ts

@@ -21,7 +21,7 @@ const generationSchema = z.object({
 export type GenerationFormValues = z.infer<typeof generationSchema>;
 
 interface UseGenerationFormOptions {
-  onSuccess?: () => void;
+  onSuccess?: (generationId: string) => void;
   defaultValues?: Partial<GenerationFormValues>;
 }
 
@@ -100,7 +100,7 @@ export function useGenerationForm(options: UseGenerationFormOptions = {}) {
       setAudio(audioUrl, result.id, selectedProfileId, data.text.substring(0, 50));
 
       form.reset();
-      options.onSuccess?.();
+      options.onSuccess?.(result.id);
     } catch (error) {
       toast({
         title: 'Generation failed',

app/src/lib/hooks/useStories.ts

@@ -0,0 +1,164 @@
+import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query';
+import { apiClient } from '@/lib/api/client';
+import type { StoryCreate, StoryItemCreate, StoryItemBatchUpdate, StoryItemReorder } from '@/lib/api/types';
+import { isTauri } from '@/lib/tauri';
+
+export function useStories() {
+  return useQuery({
+    queryKey: ['stories'],
+    queryFn: () => apiClient.listStories(),
+  });
+}
+
+export function useStory(storyId: string | null) {
+  return useQuery({
+    queryKey: ['stories', storyId],
+    queryFn: () => apiClient.getStory(storyId!),
+    enabled: !!storyId,
+  });
+}
+
+export function useCreateStory() {
+  const queryClient = useQueryClient();
+
+  return useMutation({
+    mutationFn: (data: StoryCreate) => apiClient.createStory(data),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ['stories'] });
+    },
+  });
+}
+
+export function useUpdateStory() {
+  const queryClient = useQueryClient();
+
+  return useMutation({
+    mutationFn: ({ storyId, data }: { storyId: string; data: StoryCreate }) =>
+      apiClient.updateStory(storyId, data),
+    onSuccess: (_, variables) => {
+      queryClient.invalidateQueries({ queryKey: ['stories'] });
+      queryClient.invalidateQueries({ queryKey: ['stories', variables.storyId] });
+    },
+  });
+}
+
+export function useDeleteStory() {
+  const queryClient = useQueryClient();
+
+  return useMutation({
+    mutationFn: (storyId: string) => apiClient.deleteStory(storyId),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ['stories'] });
+    },
+  });
+}
+
+export function useAddStoryItem() {
+  const queryClient = useQueryClient();
+
+  return useMutation({
+    mutationFn: ({ storyId, data }: { storyId: string; data: StoryItemCreate }) =>
+      apiClient.addStoryItem(storyId, data),
+    onSuccess: (_, variables) => {
+      queryClient.invalidateQueries({ queryKey: ['stories'] });
+      queryClient.invalidateQueries({ queryKey: ['stories', variables.storyId] });
+    },
+  });
+}
+
+export function useRemoveStoryItem() {
+  const queryClient = useQueryClient();
+
+  return useMutation({
+    mutationFn: ({ storyId, generationId }: { storyId: string; generationId: string }) =>
+      apiClient.removeStoryItem(storyId, generationId),
+    onSuccess: (_, variables) => {
+      queryClient.invalidateQueries({ queryKey: ['stories'] });
+      queryClient.invalidateQueries({ queryKey: ['stories', variables.storyId] });
+    },
+  });
+}
+
+export function useUpdateStoryItemTimes() {
+  const queryClient = useQueryClient();
+
+  return useMutation({
+    mutationFn: ({ storyId, data }: { storyId: string; data: StoryItemBatchUpdate }) =>
+      apiClient.updateStoryItemTimes(storyId, data),
+    onSuccess: (_, variables) => {
+      queryClient.invalidateQueries({ queryKey: ['stories'] });
+      queryClient.invalidateQueries({ queryKey: ['stories', variables.storyId] });
+    },
+  });
+}
+
+export function useReorderStoryItems() {
+  const queryClient = useQueryClient();
+
+  return useMutation({
+    mutationFn: ({ storyId, data }: { storyId: string; data: StoryItemReorder }) =>
+      apiClient.reorderStoryItems(storyId, data),
+    onSuccess: (_, variables) => {
+      queryClient.invalidateQueries({ queryKey: ['stories'] });
+      queryClient.invalidateQueries({ queryKey: ['stories', variables.storyId] });
+    },
+  });
+}
+
+export function useExportStoryAudio() {
+  return useMutation({
+    mutationFn: async ({ storyId, storyName }: { storyId: string; storyName: string }) => {
+      const blob = await apiClient.exportStoryAudio(storyId);
+
+      // Create safe filename
+      const safeName = storyName.substring(0, 50).replace(/[^a-z0-9]/gi, '-').toLowerCase();
+      const filename = `${safeName || 'story'}.wav`;
+
+      if (isTauri()) {
+        // Use Tauri's native save dialog
+        try {
+          const { save } = await import('@tauri-apps/plugin-dialog');
+          const filePath = await save({
+            defaultPath: filename,
+            filters: [
+              {
+                name: 'Audio File',
+                extensions: ['wav'],
+              },
+            ],
+          });
+
+          if (filePath) {
+            // Write file using Tauri's filesystem API
+            const { writeBinaryFile } = await import('@tauri-apps/plugin-fs');
+            const arrayBuffer = await blob.arrayBuffer();
+            await writeBinaryFile(filePath, new Uint8Array(arrayBuffer));
+          }
+        } catch (error) {
+          console.error('Failed to use Tauri dialog, falling back to browser download:', error);
+          // Fall back to browser download if Tauri dialog fails
+          const url = window.URL.createObjectURL(blob);
+          const a = document.createElement('a');
+          a.href = url;
+          a.download = filename;
+          document.body.appendChild(a);
+          a.click();
+          window.URL.revokeObjectURL(url);
+          document.body.removeChild(a);
+        }
+      } else {
+        // Browser: trigger download
+        const url = window.URL.createObjectURL(blob);
+        const a = document.createElement('a');
+        a.href = url;
+        a.download = filename;
+        document.body.appendChild(a);
+        a.click();
+        window.URL.revokeObjectURL(url);
+        document.body.removeChild(a);
+      }
+
+      return blob;
+    },
+  });
+}

app/src/lib/hooks/useStoryPlayback.ts

@@ -0,0 +1,193 @@
+import { useEffect, useRef, useCallback } from 'react';
+import { useStoryStore } from '@/stores/storyStore';
+import { apiClient } from '@/lib/api/client';
+import type { StoryItemDetail } from '@/lib/api/types';
+
+/**
+ * Hook for managing timecode-based story playback.
+ * Uses a single audio element for reliable playback.
+ */
+export function useStoryPlayback(_items: StoryItemDetail[] | undefined) {
+  const isPlaying = useStoryStore((state) => state.isPlaying);
+  const playbackItems = useStoryStore((state) => state.playbackItems);
+  const tick = useStoryStore((state) => state.tick);
+
+  // Single audio element for playback
+  const audioRef = useRef<HTMLAudioElement | null>(null);
+  const currentItemIdRef = useRef<string | null>(null);
+  const animationFrameRef = useRef<number | null>(null);
+  const lastTimeRef = useRef<number>(Date.now());
+
+  // Get or create audio element
+  const getAudio = useCallback(() => {
+    if (!audioRef.current) {
+      audioRef.current = new Audio();
+      audioRef.current.preload = 'auto';
+    }
+    return audioRef.current;
+  }, []);
+
+  // Find the item that should be playing at a given time
+  const findActiveItem = useCallback((timeMs: number, items: StoryItemDetail[]): StoryItemDetail | null => {
+    for (const item of items) {
+      const itemStart = item.start_time_ms;
+      const itemEnd = item.start_time_ms + item.duration * 1000;
+      if (timeMs >= itemStart && timeMs < itemEnd) {
+        return item;
+      }
+    }
+    return null;
+  }, []);
+
+  // Find the next item after a given time
+  const findNextItem = useCallback((timeMs: number, items: StoryItemDetail[]): StoryItemDetail | null => {
+    const sorted = [...items].sort((a, b) => a.start_time_ms - b.start_time_ms);
+    for (const item of sorted) {
+      if (item.start_time_ms > timeMs) {
+        return item;
+      }
+    }
+    return null;
+  }, []);
+
+  // Cleanup
+  useEffect(() => {
+    return () => {
+      if (audioRef.current) {
+        audioRef.current.pause();
+        audioRef.current.src = '';
+      }
+      if (animationFrameRef.current !== null) {
+        cancelAnimationFrame(animationFrameRef.current);
+      }
+    };
+  }, []);
+
+  // Main playback effect
+  useEffect(() => {
+    const audio = getAudio();
+
+    if (!isPlaying || !playbackItems || playbackItems.length === 0) {
+      console.log('[StoryPlayback] Stopping playback');
+      audio.pause();
+      currentItemIdRef.current = null;
+      
+      if (animationFrameRef.current !== null) {
+        cancelAnimationFrame(animationFrameRef.current);
+        animationFrameRef.current = null;
+      }
+      return;
+    }
+
+    const items = playbackItems; // Capture for closure
+    console.log('[StoryPlayback] Starting playback');
+
+    const playItem = (item: StoryItemDetail, offsetMs: number = 0) => {
+      console.log('[StoryPlayback] Playing item:', item.generation_id, 'offset:', offsetMs);
+      currentItemIdRef.current = item.generation_id;
+      
+      const audioUrl = apiClient.getAudioUrl(item.generation_id);
+      audio.src = audioUrl;
+      
+      audio.onloadedmetadata = () => {
+        const offsetSeconds = Math.max(0, offsetMs / 1000);
+        audio.currentTime = offsetSeconds;
+        audio.play().catch(err => {
+          console.error('[StoryPlayback] Play failed:', err);
+        });
+      };
+
+      audio.onerror = (e) => {
+        console.error('[StoryPlayback] Audio error:', e);
+      };
+
+      // When this audio ends, advance the clock and check for next item
+      audio.onended = () => {
+        console.log('[StoryPlayback] Audio ended');
+        const state = useStoryStore.getState();
+        if (!state.isPlaying || !state.playbackItems) return;
+
+        // Find what's next
+        const nextItem = findNextItem(state.currentTimeMs, state.playbackItems);
+        if (nextItem) {
+          // Jump to next item's start
+          useStoryStore.setState({ currentTimeMs: nextItem.start_time_ms });
+          playItem(nextItem, 0);
+        } else {
+          // No more items
+          console.log('[StoryPlayback] Story complete');
+          useStoryStore.getState().stop();
+        }
+      };
+    };
+
+    // Animation frame for updating the clock
+    const updateClock = () => {
+      if (!useStoryStore.getState().isPlaying) return;
+
+      const now = Date.now();
+      const deltaMs = now - lastTimeRef.current;
+      lastTimeRef.current = now;
+
+      // Update master clock
+      tick(deltaMs);
+
+      const currentTime = useStoryStore.getState().currentTimeMs;
+      const totalDuration = useStoryStore.getState().totalDurationMs;
+
+      // Check if we need to start playing a different item
+      const activeItem = findActiveItem(currentTime, items);
+      
+      if (activeItem && currentItemIdRef.current !== activeItem.generation_id) {
+        // Need to switch to a different item
+        const offset = currentTime - activeItem.start_time_ms;
+        playItem(activeItem, offset);
+      } else if (!activeItem && currentItemIdRef.current) {
+        // We're in a gap between items, pause audio
+        audio.pause();
+        currentItemIdRef.current = null;
+        
+        // Check if there's a next item to wait for
+        const nextItem = findNextItem(currentTime, items);
+        if (!nextItem && currentTime >= totalDuration) {
+          console.log('[StoryPlayback] Reached end');
+          useStoryStore.getState().stop();
+          return;
+        }
+      }
+
+      // Continue loop
+      animationFrameRef.current = requestAnimationFrame(updateClock);
+    };
+
+    // Start with the first item
+    const currentTime = useStoryStore.getState().currentTimeMs;
+    const activeItem = findActiveItem(currentTime, items);
+    
+    if (activeItem) {
+      const offset = currentTime - activeItem.start_time_ms;
+      playItem(activeItem, offset);
+    } else {
+      // Maybe we're before all items start, find the first one
+      const firstItem = [...items].sort((a, b) => a.start_time_ms - b.start_time_ms)[0];
+      if (firstItem && currentTime < firstItem.start_time_ms) {
+        // Wait for the first item
+        console.log('[StoryPlayback] Waiting for first item at', firstItem.start_time_ms);
+      }
+    }
+
+    // Start clock
+    lastTimeRef.current = Date.now();
+    animationFrameRef.current = requestAnimationFrame(updateClock);
+
+    return () => {
+      audio.onended = null;
+      audio.onloadedmetadata = null;
+      audio.onerror = null;
+      if (animationFrameRef.current !== null) {
+        cancelAnimationFrame(animationFrameRef.current);
+        animationFrameRef.current = null;
+      }
+    };
+  }, [isPlaying, playbackItems, getAudio, findActiveItem, findNextItem, tick]);
+}

app/src/router.tsx

@@ -5,6 +5,7 @@ import { MainEditor } from '@/components/MainEditor/MainEditor';
 import { ModelsTab } from '@/components/ModelsTab/ModelsTab';
 import { ServerTab } from '@/components/ServerTab/ServerTab';
 import { Sidebar } from '@/components/Sidebar';
+import { StoriesTab } from '@/components/StoriesTab/StoriesTab';
 import { Toaster } from '@/components/ui/toaster';
 import { VoicesTab } from '@/components/VoicesTab/VoicesTab';
 import { useModelDownloadToast } from '@/lib/hooks/useModelDownloadToast';
@@ -77,6 +78,13 @@ const indexRoute = createRoute({
   component: MainEditor,
 });
 
+// Stories route
+const storiesRoute = createRoute({
+  getParentRoute: () => rootRoute,
+  path: '/stories',
+  component: StoriesTab,
+});
+
 // Voices route
 const voicesRoute = createRoute({
   getParentRoute: () => rootRoute,
@@ -108,6 +116,7 @@ const serverRoute = createRoute({
 // Route tree
 const routeTree = rootRoute.addChildren([
   indexRoute,
+  storiesRoute,
   voicesRoute,
   audioRoute,
   modelsRoute,

app/src/stores/playerStore.ts

@@ -11,8 +11,11 @@ interface PlayerState {
   volume: number;
   isLooping: boolean;
   shouldRestart: boolean;
+  shouldAutoPlay: boolean;
+  onFinish: (() => void) | null;
 
   setAudio: (url: string, id: string, profileId: string | null, title?: string) => void;
+  setAudioWithAutoPlay: (url: string, id: string, profileId: string | null, title?: string) => void;
   setIsPlaying: (playing: boolean) => void;
   setCurrentTime: (time: number) => void;
   setDuration: (duration: number) => void;
@@ -20,6 +23,8 @@ interface PlayerState {
   toggleLoop: () => void;
   restartCurrentAudio: () => void;
   clearRestartFlag: () => void;
+  clearAutoPlayFlag: () => void;
+  setOnFinish: (callback: (() => void) | null) => void;
   reset: () => void;
 }
 
@@ -34,6 +39,8 @@ export const usePlayerStore = create<PlayerState>((set) => ({
   volume: 1,
   isLooping: false,
   shouldRestart: false,
+  shouldAutoPlay: false,
+  onFinish: null,
 
   setAudio: (url, id, profileId, title) =>
     set({
@@ -44,6 +51,18 @@ export const usePlayerStore = create<PlayerState>((set) => ({
       currentTime: 0,
       isPlaying: false,
       shouldRestart: false,
+      shouldAutoPlay: false,
+    }),
+  setAudioWithAutoPlay: (url, id, profileId, title) =>
+    set({
+      audioUrl: url,
+      audioId: id,
+      profileId: profileId || null,
+      title: title || null,
+      currentTime: 0,
+      isPlaying: false,
+      shouldRestart: false,
+      shouldAutoPlay: true,
     }),
   setIsPlaying: (playing) => set({ isPlaying: playing }),
   setCurrentTime: (time) => set({ currentTime: time }),
@@ -52,6 +71,8 @@ export const usePlayerStore = create<PlayerState>((set) => ({
   toggleLoop: () => set((state) => ({ isLooping: !state.isLooping })),
   restartCurrentAudio: () => set({ shouldRestart: true }),
   clearRestartFlag: () => set({ shouldRestart: false }),
+  clearAutoPlayFlag: () => set({ shouldAutoPlay: false }),
+  setOnFinish: (callback) => set({ onFinish: callback }),
   reset: () =>
     set({
       audioUrl: null,
@@ -63,5 +84,7 @@ export const usePlayerStore = create<PlayerState>((set) => ({
       duration: 0,
       isLooping: false,
       shouldRestart: false,
+      shouldAutoPlay: false,
+      onFinish: null,
     }),
 }));

app/src/stores/storyStore.ts

@@ -0,0 +1,113 @@
+import { create } from 'zustand';
+import type { StoryItemDetail } from '@/lib/api/types';
+
+interface StoryPlaybackState {
+  // Selection
+  selectedStoryId: string | null;
+  setSelectedStoryId: (id: string | null) => void;
+
+  // Playback state
+  isPlaying: boolean;
+  currentTimeMs: number;
+  totalDurationMs: number;
+  playbackStoryId: string | null;
+  playbackItems: StoryItemDetail[] | null;
+
+  // Actions
+  play: (storyId: string, items: StoryItemDetail[]) => void;
+  pause: () => void;
+  stop: () => void;
+  seek: (timeMs: number) => void;
+  tick: (deltaMs: number) => void; // Called by animation frame
+}
+
+export const useStoryStore = create<StoryPlaybackState>((set, get) => ({
+  // Selection
+  selectedStoryId: null,
+  setSelectedStoryId: (id) => set({ selectedStoryId: id }),
+
+  // Playback state
+  isPlaying: false,
+  currentTimeMs: 0,
+  totalDurationMs: 0,
+  playbackStoryId: null,
+  playbackItems: null,
+
+  // Actions
+  play: (storyId, items) => {
+    // Calculate total duration from items
+    const maxEndTimeMs = Math.max(
+      ...items.map((item) => item.start_time_ms + item.duration * 1000),
+      0
+    );
+
+    // Find the minimum start time (first item)
+    const minStartTimeMs = Math.min(
+      ...items.map((item) => item.start_time_ms),
+      0
+    );
+
+    // If resuming the same story, keep position; otherwise start at first item
+    const currentState = get();
+    const shouldResume = currentState.playbackStoryId === storyId && currentState.currentTimeMs > 0;
+    const startTimeMs = shouldResume ? currentState.currentTimeMs : minStartTimeMs;
+
+    console.log('[StoryStore] Play called:', {
+      storyId,
+      itemCount: items.length,
+      items: items.map(i => ({ id: i.generation_id, start: i.start_time_ms, duration: i.duration })),
+      maxEndTimeMs,
+      minStartTimeMs,
+      startTimeMs,
+      shouldResume,
+    });
+
+    set({
+      isPlaying: true,
+      playbackStoryId: storyId,
+      playbackItems: items,
+      totalDurationMs: maxEndTimeMs,
+      currentTimeMs: startTimeMs,
+    });
+  },
+
+  pause: () => {
+    set({ isPlaying: false });
+  },
+
+  stop: () => {
+    set({
+      isPlaying: false,
+      currentTimeMs: 0,
+      playbackStoryId: null,
+      playbackItems: null,
+      totalDurationMs: 0,
+    });
+  },
+
+  seek: (timeMs) => {
+    const state = get();
+    const clampedTime = Math.max(0, Math.min(timeMs, state.totalDurationMs));
+    set({ currentTimeMs: clampedTime });
+  },
+
+  tick: (deltaMs) => {
+    const state = get();
+    if (!state.isPlaying || !state.playbackItems) {
+      return;
+    }
+
+    const newTime = state.currentTimeMs + deltaMs;
+    const clampedTime = Math.min(newTime, state.totalDurationMs);
+
+    // Auto-stop when reaching the end
+    if (clampedTime >= state.totalDurationMs) {
+      set({
+        currentTimeMs: state.totalDurationMs,
+        isPlaying: false,
+      });
+    } else {
+      set({ currentTimeMs: clampedTime });
+    }
+  },
+}));

backend/database.py

@@ -51,6 +51,28 @@ class Generation(Base):
     created_at = Column(DateTime, default=datetime.utcnow)
 
 
+class Story(Base):
+    """Story database model."""
+    __tablename__ = "stories"
+    
+    id = Column(String, primary_key=True, default=lambda: str(uuid.uuid4()))
+    name = Column(String, nullable=False)
+    description = Column(Text)
+    created_at = Column(DateTime, default=datetime.utcnow)
+    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+
+
+class StoryItem(Base):
+    """Story item database model (links generations to stories)."""
+    __tablename__ = "story_items"
+    
+    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)
+    start_time_ms = Column(Integer, nullable=False, default=0)  # Milliseconds from story start
+    created_at = Column(DateTime, default=datetime.utcnow)
+
+
 class Project(Base):
     """Audio studio project database model."""
     __tablename__ = "projects"
@@ -108,6 +130,10 @@ def init_db():
     )
 
     SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+    
+    # Run migrations before creating tables
+    _run_migrations(engine)
+    
     Base.metadata.create_all(bind=engine)
     
     # Create default channel if it doesn't exist
@@ -136,6 +162,91 @@ def init_db():
         db.close()
 
 
+def _run_migrations(engine):
+    """Run database migrations."""
+    from sqlalchemy import inspect, text
+    
+    inspector = inspect(engine)
+    
+    # Check if story_items table exists
+    if 'story_items' not in inspector.get_table_names():
+        return  # Table doesn't exist yet, will be created fresh
+    
+    # Get columns in story_items table
+    columns = {col['name'] for col in inspector.get_columns('story_items')}
+    
+    # Migration: Remove position column and ensure start_time_ms exists
+    # SQLite doesn't support DROP COLUMN easily, so we recreate the table
+    if 'position' in columns:
+        print("Migrating story_items: removing position column, using start_time_ms")
+        
+        with engine.connect() as conn:
+            # Check if start_time_ms already exists
+            has_start_time = 'start_time_ms' in columns
+            
+            if not has_start_time:
+                # First, add the new column temporarily
+                conn.execute(text("ALTER TABLE story_items ADD COLUMN start_time_ms INTEGER DEFAULT 0"))
+                
+                # Calculate timecodes from position ordering
+                result = conn.execute(text("""
+                    SELECT si.id, si.story_id, si.position, g.duration
+                    FROM story_items si
+                    JOIN generations g ON si.generation_id = g.id
+                    ORDER BY si.story_id, si.position
+                """))
+                
+                rows = result.fetchall()
+                
+                current_story_id = None
+                current_time_ms = 0
+                
+                for row in rows:
+                    item_id, story_id, position, duration = row
+                    
+                    if story_id != current_story_id:
+                        current_story_id = story_id
+                        current_time_ms = 0
+                    
+                    conn.execute(
+                        text("UPDATE story_items SET start_time_ms = :time WHERE id = :id"),
+                        {"time": current_time_ms, "id": item_id}
+                    )
+                    
+                    current_time_ms += int(duration * 1000) + 200
+                
+                conn.commit()
+            
+            # Now recreate the table without the position column
+            # 1. Create new table
+            conn.execute(text("""
+                CREATE TABLE story_items_new (
+                    id VARCHAR PRIMARY KEY,
+                    story_id VARCHAR NOT NULL,
+                    generation_id VARCHAR NOT NULL,
+                    start_time_ms INTEGER NOT NULL DEFAULT 0,
+                    created_at DATETIME,
+                    FOREIGN KEY (story_id) REFERENCES stories(id),
+                    FOREIGN KEY (generation_id) REFERENCES generations(id)
+                )
+            """))
+            
+            # 2. Copy data
+            conn.execute(text("""
+                INSERT INTO story_items_new (id, story_id, generation_id, start_time_ms, created_at)
+                SELECT id, story_id, generation_id, start_time_ms, created_at FROM story_items
+            """))
+            
+            # 3. Drop old table
+            conn.execute(text("DROP TABLE story_items"))
+            
+            # 4. Rename new table
+            conn.execute(text("ALTER TABLE story_items_new RENAME TO story_items"))
+            
+            conn.commit()
+            print("Migrated story_items table to use start_time_ms (removed position column)")
+
+
 def get_db():
     """Get database session (generator for dependency injection)."""
     db = SessionLocal()

backend/main.py

@@ -19,7 +19,7 @@ import io
 from pathlib import Path
 import uuid
 
-from . import database, models, profiles, history, tts, transcribe, config, export_import, channels
+from . import database, models, profiles, history, tts, transcribe, config, export_import, channels, stories
 from .database import get_db, Generation as DBGeneration, VoiceProfile as DBVoiceProfile
 from .utils.progress import get_progress_manager
 from .utils.tasks import get_task_manager
@@ -698,6 +698,154 @@ async def transcribe_audio(
         Path(tmp_path).unlink(missing_ok=True)
 
 
+# ============================================
+# STORY ENDPOINTS
+# ============================================
+
+@app.get("/stories", response_model=List[models.StoryResponse])
+async def list_stories(db: Session = Depends(get_db)):
+    """List all stories."""
+    return await stories.list_stories(db)
+
+
+@app.post("/stories", response_model=models.StoryResponse)
+async def create_story(
+    data: models.StoryCreate,
+    db: Session = Depends(get_db),
+):
+    """Create a new story."""
+    try:
+        return await stories.create_story(data, db)
+    except Exception as e:
+        raise HTTPException(status_code=400, detail=str(e))
+
+
+@app.get("/stories/{story_id}", response_model=models.StoryDetailResponse)
+async def get_story(
+    story_id: str,
+    db: Session = Depends(get_db),
+):
+    """Get a story with all its items."""
+    story = await stories.get_story(story_id, db)
+    if not story:
+        raise HTTPException(status_code=404, detail="Story not found")
+    return story
+
+
+@app.put("/stories/{story_id}", response_model=models.StoryResponse)
+async def update_story(
+    story_id: str,
+    data: models.StoryCreate,
+    db: Session = Depends(get_db),
+):
+    """Update a story."""
+    story = await stories.update_story(story_id, data, db)
+    if not story:
+        raise HTTPException(status_code=404, detail="Story not found")
+    return story
+
+
+@app.delete("/stories/{story_id}")
+async def delete_story(
+    story_id: str,
+    db: Session = Depends(get_db),
+):
+    """Delete a story."""
+    success = await stories.delete_story(story_id, db)
+    if not success:
+        raise HTTPException(status_code=404, detail="Story not found")
+    return {"message": "Story deleted successfully"}
+
+
+@app.post("/stories/{story_id}/items", response_model=models.StoryItemDetail)
+async def add_story_item(
+    story_id: str,
+    data: models.StoryItemCreate,
+    db: Session = Depends(get_db),
+):
+    """Add a generation to a story."""
+    item = await stories.add_item_to_story(story_id, data, db)
+    if not item:
+        raise HTTPException(status_code=404, detail="Story or generation not found")
+    return item
+
+
+@app.delete("/stories/{story_id}/items/{generation_id}")
+async def remove_story_item(
+    story_id: str,
+    generation_id: str,
+    db: Session = Depends(get_db),
+):
+    """Remove a generation from a story."""
+    success = await stories.remove_item_from_story(story_id, generation_id, db)
+    if not success:
+        raise HTTPException(status_code=404, detail="Story item not found")
+    return {"message": "Item removed successfully"}
+
+
+@app.put("/stories/{story_id}/items/times")
+async def update_story_item_times(
+    story_id: str,
+    data: models.StoryItemBatchUpdate,
+    db: Session = Depends(get_db),
+):
+    """Update story item timecodes."""
+    success = await stories.update_story_item_times(story_id, data, db)
+    if not success:
+        raise HTTPException(status_code=400, detail="Invalid timecode update request")
+    return {"message": "Item timecodes updated successfully"}
+
+
+@app.put("/stories/{story_id}/items/reorder", response_model=List[models.StoryItemDetail])
+async def reorder_story_items(
+    story_id: str,
+    data: models.StoryItemReorder,
+    db: Session = Depends(get_db),
+):
+    """Reorder story items and recalculate timecodes."""
+    items = await stories.reorder_story_items(story_id, data.generation_ids, db)
+    if items is None:
+        raise HTTPException(status_code=400, detail="Invalid reorder request - ensure all generation IDs belong to this story")
+    return items
+
+
+@app.get("/stories/{story_id}/export-audio")
+async def export_story_audio(
+    story_id: str,
+    db: Session = Depends(get_db),
+):
+    """Export story as single mixed audio file with timecode-based mixing."""
+    try:
+        # Get story to create filename
+        story = db.query(database.Story).filter_by(id=story_id).first()
+        if not story:
+            raise HTTPException(status_code=404, detail="Story not found")
+        
+        # Export audio
+        audio_bytes = await stories.export_story_audio(story_id, db)
+        if not audio_bytes:
+            raise HTTPException(status_code=400, detail="Story has no audio items")
+        
+        # Create safe filename
+        safe_name = "".join(c for c in story.name if c.isalnum() or c in (' ', '-', '_')).strip()
+        if not safe_name:
+            safe_name = "story"
+        filename = f"{safe_name}.wav"
+        
+        # Return as streaming response
+        return StreamingResponse(
+            io.BytesIO(audio_bytes),
+            media_type="audio/wav",
+            headers={
+                "Content-Disposition": f'attachment; filename="{filename}"'
+            }
+        )
+    except HTTPException:
+        raise
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=str(e))
+
+
 # ============================================
 # FILE SERVING
 # ============================================

backend/models.py

@@ -193,3 +193,79 @@ class ChannelVoiceAssignment(BaseModel):
 class ProfileChannelAssignment(BaseModel):
     """Request model for assigning channels to a profile."""
     channel_ids: List[str]
+
+
+class StoryCreate(BaseModel):
+    """Request model for creating a story."""
+    name: str = Field(..., min_length=1, max_length=100)
+    description: Optional[str] = Field(None, max_length=500)
+
+
+class StoryResponse(BaseModel):
+    """Response model for story (list view)."""
+    id: str
+    name: str
+    description: Optional[str]
+    created_at: datetime
+    updated_at: datetime
+    item_count: int = 0
+
+    class Config:
+        from_attributes = True
+
+
+class StoryItemDetail(BaseModel):
+    """Detail model for story item with generation info."""
+    id: str
+    story_id: str
+    generation_id: str
+    start_time_ms: int
+    created_at: datetime
+    # Generation details
+    profile_id: str
+    profile_name: str
+    text: str
+    language: str
+    audio_path: str
+    duration: float
+    seed: Optional[int]
+    instruct: Optional[str]
+    generation_created_at: datetime
+
+    class Config:
+        from_attributes = True
+
+
+class StoryDetailResponse(BaseModel):
+    """Response model for story with items."""
+    id: str
+    name: str
+    description: Optional[str]
+    created_at: datetime
+    updated_at: datetime
+    items: List[StoryItemDetail] = []
+
+    class Config:
+        from_attributes = True
+
+
+class StoryItemCreate(BaseModel):
+    """Request model for adding a generation to a story."""
+    generation_id: str
+    start_time_ms: Optional[int] = None  # If not provided, will be calculated automatically
+
+
+class StoryItemUpdateTime(BaseModel):
+    """Request model for updating a story item's timecode."""
+    generation_id: str
+    start_time_ms: int = Field(..., ge=0)
+
+
+class StoryItemBatchUpdate(BaseModel):
+    """Request model for batch updating story item timecodes."""
+    updates: List[StoryItemUpdateTime]
+
+
+class StoryItemReorder(BaseModel):
+    """Request model for reordering story items."""
+    generation_ids: List[str] = Field(..., min_length=1)

backend/stories.py

@@ -0,0 +1,598 @@
+"""
+Story management module.
+"""
+
+from typing import List, Optional
+from datetime import datetime
+import uuid
+import tempfile
+from pathlib import Path
+from sqlalchemy.orm import Session
+from sqlalchemy import func
+
+from .models import (
+    StoryCreate,
+    StoryResponse,
+    StoryDetailResponse,
+    StoryItemDetail,
+    StoryItemCreate,
+    StoryItemBatchUpdate,
+)
+from .database import Story as DBStory, StoryItem as DBStoryItem, Generation as DBGeneration, VoiceProfile as DBVoiceProfile
+from .utils.audio import load_audio, save_audio
+import numpy as np
+
+
+async def create_story(
+    data: StoryCreate,
+    db: Session,
+) -> StoryResponse:
+    """
+    Create a new story.
+
+    Args:
+        data: Story creation data
+        db: Database session
+
+    Returns:
+        Created story
+    """
+    db_story = DBStory(
+        id=str(uuid.uuid4()),
+        name=data.name,
+        description=data.description,
+        created_at=datetime.utcnow(),
+        updated_at=datetime.utcnow(),
+    )
+
+    db.add(db_story)
+    db.commit()
+    db.refresh(db_story)
+
+    # Get item count
+    item_count = db.query(func.count(DBStoryItem.id)).filter(
+        DBStoryItem.story_id == db_story.id
+    ).scalar()
+
+    response = StoryResponse.model_validate(db_story)
+    response.item_count = item_count
+    return response
+
+
+async def list_stories(
+    db: Session,
+) -> List[StoryResponse]:
+    """
+    List all stories.
+
+    Args:
+        db: Database session
+
+    Returns:
+        List of stories with item counts
+    """
+    stories = db.query(DBStory).order_by(DBStory.updated_at.desc()).all()
+    
+    result = []
+    for story in stories:
+        item_count = db.query(func.count(DBStoryItem.id)).filter(
+            DBStoryItem.story_id == story.id
+        ).scalar()
+        
+        response = StoryResponse.model_validate(story)
+        response.item_count = item_count
+        result.append(response)
+    
+    return result
+
+
+async def get_story(
+    story_id: str,
+    db: Session,
+) -> Optional[StoryDetailResponse]:
+    """
+    Get a story with all its items.
+
+    Args:
+        story_id: Story ID
+        db: Database session
+
+    Returns:
+        Story with items or None if not found
+    """
+    story = db.query(DBStory).filter_by(id=story_id).first()
+    if not story:
+        return None
+
+    # Get all items ordered by start_time_ms
+    items = db.query(
+        DBStoryItem,
+        DBGeneration,
+        DBVoiceProfile.name.label('profile_name')
+    ).join(
+        DBGeneration,
+        DBStoryItem.generation_id == DBGeneration.id
+    ).join(
+        DBVoiceProfile,
+        DBGeneration.profile_id == DBVoiceProfile.id
+    ).filter(
+        DBStoryItem.story_id == story_id
+    ).order_by(DBStoryItem.start_time_ms).all()
+
+    # Build item details
+    item_details = []
+    for item, generation, profile_name in items:
+        item_detail = StoryItemDetail(
+            id=item.id,
+            story_id=item.story_id,
+            generation_id=item.generation_id,
+            start_time_ms=item.start_time_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,
+        )
+        item_details.append(item_detail)
+
+    response = StoryDetailResponse.model_validate(story)
+    response.items = item_details
+    return response
+
+
+async def update_story(
+    story_id: str,
+    data: StoryCreate,
+    db: Session,
+) -> Optional[StoryResponse]:
+    """
+    Update a story.
+
+    Args:
+        story_id: Story ID
+        data: Update data
+        db: Database session
+
+    Returns:
+        Updated story or None if not found
+    """
+    story = db.query(DBStory).filter_by(id=story_id).first()
+    if not story:
+        return None
+
+    story.name = data.name
+    story.description = data.description
+    story.updated_at = datetime.utcnow()
+
+    db.commit()
+    db.refresh(story)
+
+    # Get item count
+    item_count = db.query(func.count(DBStoryItem.id)).filter(
+        DBStoryItem.story_id == story.id
+    ).scalar()
+
+    response = StoryResponse.model_validate(story)
+    response.item_count = item_count
+    return response
+
+
+async def delete_story(
+    story_id: str,
+    db: Session,
+) -> bool:
+    """
+    Delete a story and all its items.
+
+    Args:
+        story_id: Story ID
+        db: Database session
+
+    Returns:
+        True if deleted, False if not found
+    """
+    story = db.query(DBStory).filter_by(id=story_id).first()
+    if not story:
+        return False
+
+    # Delete all items
+    db.query(DBStoryItem).filter_by(story_id=story_id).delete()
+
+    # Delete story
+    db.delete(story)
+    db.commit()
+
+    return True
+
+
+async def add_item_to_story(
+    story_id: str,
+    data: StoryItemCreate,
+    db: Session,
+) -> Optional[StoryItemDetail]:
+    """
+    Add a generation to a story.
+
+    Args:
+        story_id: Story ID
+        data: Item creation data
+        db: Database session
+
+    Returns:
+        Created item detail or None if story/generation not found
+    """
+    # Verify story exists
+    story = db.query(DBStory).filter_by(id=story_id).first()
+    if not story:
+        return None
+
+    # Verify generation exists
+    generation = db.query(DBGeneration).filter_by(id=data.generation_id).first()
+    if not generation:
+        return None
+
+    # Check if generation is already in story
+    existing = db.query(DBStoryItem).filter_by(
+        story_id=story_id,
+        generation_id=data.generation_id
+    ).first()
+    if existing:
+        # Return existing item
+        profile = db.query(DBVoiceProfile).filter_by(id=generation.profile_id).first()
+        return StoryItemDetail(
+            id=existing.id,
+            story_id=existing.story_id,
+            generation_id=existing.generation_id,
+            start_time_ms=existing.start_time_ms,
+            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,
+        )
+
+    # Calculate start_time_ms if not provided
+    if data.start_time_ms is not None:
+        start_time_ms = data.start_time_ms
+    else:
+        # Find the maximum end time (start_time_ms + duration_ms) of existing items
+        existing_items = db.query(
+            DBStoryItem,
+            DBGeneration
+        ).join(
+            DBGeneration,
+            DBStoryItem.generation_id == DBGeneration.id
+        ).filter(
+            DBStoryItem.story_id == story_id
+        ).all()
+        
+        if not existing_items:
+            # First item starts at 0
+            start_time_ms = 0
+        else:
+            max_end_time_ms = 0
+            for item, gen in existing_items:
+                item_end_ms = item.start_time_ms + int(gen.duration * 1000)
+                max_end_time_ms = max(max_end_time_ms, item_end_ms)
+            
+            # Add 200ms gap after the last item
+            start_time_ms = max_end_time_ms + 200
+
+    # Create item
+    item = DBStoryItem(
+        id=str(uuid.uuid4()),
+        story_id=story_id,
+        generation_id=data.generation_id,
+        start_time_ms=start_time_ms,
+        created_at=datetime.utcnow(),
+    )
+
+    db.add(item)
+    
+    # Update story updated_at
+    story.updated_at = datetime.utcnow()
+    
+    db.commit()
+    db.refresh(item)
+
+    # Get profile name
+    profile = db.query(DBVoiceProfile).filter_by(id=generation.profile_id).first()
+
+    return StoryItemDetail(
+        id=item.id,
+        story_id=item.story_id,
+        generation_id=item.generation_id,
+        start_time_ms=item.start_time_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 remove_item_from_story(
+    story_id: str,
+    generation_id: str,
+    db: Session,
+) -> bool:
+    """
+    Remove a generation from a story.
+
+    Args:
+        story_id: Story ID
+        generation_id: Generation ID to remove
+        db: Database session
+
+    Returns:
+        True if removed, False if not found
+    """
+    item = db.query(DBStoryItem).filter_by(
+        story_id=story_id,
+        generation_id=generation_id
+    ).first()
+    if not item:
+        return False
+
+    # Delete item
+    db.delete(item)
+
+    # Update story updated_at
+    story = db.query(DBStory).filter_by(id=story_id).first()
+    if story:
+        story.updated_at = datetime.utcnow()
+
+    db.commit()
+    return True
+
+
+async def update_story_item_times(
+    story_id: str,
+    data: StoryItemBatchUpdate,
+    db: Session,
+) -> bool:
+    """
+    Update story item timecodes.
+
+    Args:
+        story_id: Story ID
+        data: Batch update data with timecodes
+        db: Database session
+
+    Returns:
+        True if updated, False if story not found or invalid
+    """
+    story = db.query(DBStory).filter_by(id=story_id).first()
+    if not story:
+        return False
+
+    # Get all items for this story
+    items = db.query(DBStoryItem).filter_by(story_id=story_id).all()
+    item_map = {item.generation_id: item for item in items}
+
+    # Verify all generation IDs belong to this story and update timecodes
+    for update in data.updates:
+        if update.generation_id not in item_map:
+            return False
+        item_map[update.generation_id].start_time_ms = update.start_time_ms
+
+    # Update story updated_at
+    story.updated_at = datetime.utcnow()
+
+    db.commit()
+    return True
+
+
+async def reorder_story_items(
+    story_id: str,
+    generation_ids: List[str],
+    db: Session,
+    gap_ms: int = 200,
+) -> Optional[List[StoryItemDetail]]:
+    """
+    Reorder story items and recalculate timecodes.
+
+    Args:
+        story_id: Story ID
+        generation_ids: List of generation IDs in the desired order
+        db: Database session
+        gap_ms: Gap in milliseconds between items (default 200ms)
+
+    Returns:
+        Updated list of story items with new timecodes, or None if invalid
+    """
+    story = db.query(DBStory).filter_by(id=story_id).first()
+    if not story:
+        return None
+
+    # Get all items for this story with their generation data
+    items_with_gen = db.query(
+        DBStoryItem,
+        DBGeneration,
+        DBVoiceProfile.name.label('profile_name')
+    ).join(
+        DBGeneration,
+        DBStoryItem.generation_id == DBGeneration.id
+    ).join(
+        DBVoiceProfile,
+        DBGeneration.profile_id == DBVoiceProfile.id
+    ).filter(
+        DBStoryItem.story_id == story_id
+    ).all()
+
+    # Create maps for quick lookup
+    item_map = {item.generation_id: (item, gen, profile_name) for item, gen, profile_name in items_with_gen}
+
+    # Verify all generation IDs belong to this story
+    if set(generation_ids) != set(item_map.keys()):
+        return None
+
+    # Recalculate timecodes based on new order
+    current_time_ms = 0
+    updated_items = []
+
+    for gen_id in generation_ids:
+        item, generation, profile_name = item_map[gen_id]
+        
+        # Update the item's start time
+        item.start_time_ms = current_time_ms
+        
+        # Calculate the duration in ms
+        duration_ms = int(generation.duration * 1000)
+        
+        # Move to next position (current end + gap)
+        current_time_ms += duration_ms + gap_ms
+
+        # Build the response item
+        updated_items.append(StoryItemDetail(
+            id=item.id,
+            story_id=item.story_id,
+            generation_id=item.generation_id,
+            start_time_ms=item.start_time_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,
+        ))
+
+    # Update story updated_at
+    story.updated_at = datetime.utcnow()
+
+    db.commit()
+    return updated_items
+
+
+async def export_story_audio(
+    story_id: str,
+    db: Session,
+) -> Optional[bytes]:
+    """
+    Export story as single mixed audio file with timecode-based mixing.
+
+    Args:
+        story_id: Story ID
+        db: Database session
+
+    Returns:
+        Audio file bytes or None if story not found
+    """
+    story = db.query(DBStory).filter_by(id=story_id).first()
+    if not story:
+        return None
+
+    # Get all items ordered by start_time_ms
+    items = db.query(
+        DBStoryItem,
+        DBGeneration
+    ).join(
+        DBGeneration,
+        DBStoryItem.generation_id == DBGeneration.id
+    ).filter(
+        DBStoryItem.story_id == story_id
+    ).order_by(DBStoryItem.start_time_ms).all()
+
+    if not items:
+        return None
+
+    # Load all audio files and calculate total duration
+    audio_data = []
+    sample_rate = 24000  # Default sample rate
+
+    for item, generation in items:
+        audio_path = Path(generation.audio_path)
+        if not audio_path.exists():
+            continue
+
+        try:
+            audio, sr = load_audio(str(audio_path), sample_rate=sample_rate)
+            sample_rate = sr  # Use actual sample rate from first file
+            
+            # Store audio with its timecode info
+            start_time_ms = item.start_time_ms
+            duration_ms = int(generation.duration * 1000)
+            
+            audio_data.append({
+                'audio': audio,
+                'start_time_ms': start_time_ms,
+                'duration_ms': duration_ms,
+            })
+        except Exception:
+            # Skip files that can't be loaded
+            continue
+
+    if not audio_data:
+        return None
+
+    # Calculate total duration: max(start_time_ms + duration_ms)
+    max_end_time_ms = max(
+        (data['start_time_ms'] + data['duration_ms'] for data in audio_data),
+        default=0
+    )
+    
+    # Convert to samples
+    total_samples = int((max_end_time_ms / 1000.0) * sample_rate)
+    
+    # Create output buffer initialized to zeros
+    final_audio = np.zeros(total_samples, dtype=np.float32)
+
+    # Mix each audio segment at its timecode position
+    for data in audio_data:
+        audio = data['audio']
+        start_time_ms = data['start_time_ms']
+        
+        # Calculate start sample index
+        start_sample = int((start_time_ms / 1000.0) * sample_rate)
+        
+        # Ensure we don't exceed buffer bounds
+        audio_length = len(audio)
+        end_sample = min(start_sample + audio_length, total_samples)
+        
+        if start_sample < total_samples:
+            # Trim audio if it extends beyond buffer
+            audio_to_mix = audio[:end_sample - start_sample]
+            
+            # Mix: add audio to existing buffer (overlapping audio will sum)
+            # Normalize to prevent clipping (simple approach: divide by max)
+            final_audio[start_sample:end_sample] += audio_to_mix
+
+    # Normalize to prevent clipping
+    max_val = np.abs(final_audio).max()
+    if max_val > 1.0:
+        final_audio = final_audio / max_val
+
+    # Save to temporary file
+    with tempfile.NamedTemporaryFile(suffix='.wav', delete=False) as tmp:
+        tmp_path = tmp.name
+
+    try:
+        save_audio(final_audio, tmp_path, sample_rate)
+
+        # Read file bytes
+        with open(tmp_path, 'rb') as f:
+            audio_bytes = f.read()
+
+        return audio_bytes
+    finally:
+        # Clean up temp file
+        Path(tmp_path).unlink(missing_ok=True)

bun.lock

@@ -13,8 +13,11 @@
     },
     "app": {
       "name": "@voicebox/app",
-      "version": "0.1.4",
+      "version": "0.1.5",
       "dependencies": {
+        "@dnd-kit/core": "^6.3.1",
+        "@dnd-kit/sortable": "^10.0.0",
+        "@dnd-kit/utilities": "^3.2.2",
         "@hookform/resolvers": "^3.9.0",
         "@radix-ui/react-alert-dialog": "^1.1.1",
         "@radix-ui/react-avatar": "^1.1.0",
@@ -64,7 +67,7 @@
     },
     "landing": {
       "name": "@voicebox/landing",
-      "version": "0.1.4",
+      "version": "0.1.5",
       "dependencies": {
         "@radix-ui/react-separator": "^1.1.8",
         "@radix-ui/react-slot": "^1.2.4",
@@ -89,7 +92,7 @@
     },
     "tauri": {
       "name": "@voicebox/tauri",
-      "version": "0.1.4",
+      "version": "0.1.5",
       "dependencies": {
         "@tauri-apps/api": "^2.0.0",
         "@tauri-apps/plugin-shell": "^2.0.0",
@@ -108,7 +111,7 @@
     },
     "web": {
       "name": "@voicebox/web",
-      "version": "0.1.4",
+      "version": "0.1.5",
       "dependencies": {
         "@tanstack/react-query": "^5.0.0",
         "react": "^18.3.0",
@@ -189,6 +192,14 @@
 
     "@biomejs/cli-win32-x64": ["@biomejs/[email protected]", "", { "os": "win32", "cpu": "x64" }, "sha512-qqGVWqNNek0KikwPZlOIoxtXgsNGsX+rgdEzgw82Re8nF02W+E2WokaQhpF5TdBh/D/RQ3TLppH+otp6ztN0lw=="],
 
+    "@dnd-kit/accessibility": ["@dnd-kit/[email protected]", "", { "dependencies": { "tslib": "^2.0.0" }, "peerDependencies": { "react": ">=16.8.0" } }, "sha512-2P+YgaXF+gRsIihwwY1gCsQSYnu9Zyj2py8kY5fFvUM1qm2WA2u639R6YNVfU4GWr+ZM5mqEsfHZZLoRONbemw=="],
+
+    "@dnd-kit/core": ["@dnd-kit/[email protected]", "", { "dependencies": { "@dnd-kit/accessibility": "^3.1.1", "@dnd-kit/utilities": "^3.2.2", "tslib": "^2.0.0" }, "peerDependencies": { "react": ">=16.8.0", "react-dom": ">=16.8.0" } }, "sha512-xkGBRQQab4RLwgXxoqETICr6S5JlogafbhNsidmrkVv2YRs5MLwpjoF2qpiGjQt8S9AoxtIV603s0GIUpY5eYQ=="],
+
+    "@dnd-kit/sortable": ["@dnd-kit/[email protected]", "", { "dependencies": { "@dnd-kit/utilities": "^3.2.2", "tslib": "^2.0.0" }, "peerDependencies": { "@dnd-kit/core": "^6.3.0", "react": ">=16.8.0" } }, "sha512-+xqhmIIzvAYMGfBYYnbKuNicfSsk4RksY2XdmJhT+HAC01nix6fHCztU68jooFiMUB01Ky3F0FyOvhG/BZrWkg=="],
+
+    "@dnd-kit/utilities": ["@dnd-kit/[email protected]", "", { "dependencies": { "tslib": "^2.0.0" }, "peerDependencies": { "react": ">=16.8.0" } }, "sha512-+MKAJEOfaBe5SmV6t34p80MMKhjvUz0vRrvVJbPT0WElzaOJ/1xs+D+KDv+tD/NE5ujfrChEcshd4fLn0wpiqg=="],
+
     "@emnapi/runtime": ["@emnapi/[email protected]", "", { "dependencies": { "tslib": "^2.4.0" } }, "sha512-mehfKSMWjjNol8659Z8KxEMrdSJDDot5SXMq00dM8BN4o+CLNXQ0xH2V7EchNHV4RmbZLmmPdEaXZc5H2FXmDg=="],
 
     "@esbuild/aix-ppc64": ["@esbuild/[email protected]", "", { "os": "aix", "cpu": "ppc64" }, "sha512-1SDgH6ZSPTlggy1yI6+Dbkiz8xzpHJEVAlF/AM1tHPLsf5STom9rwtjE4hKAF20FfXXNTFqEYXyJNWh1GiZedQ=="],