rebrand: rename VoiceBox to TalkBox throughout codebase

- All 'voicebox'/'Voicebox'/'VOICEBOX' strings replaced with 'talkbox'/'TalkBox'/'TALKBOX'
- Port changed from 17493 to 17494 (avoids conflict with upstream VoiceBox)
- MCP tool namespace: voicebox.* -> talkbox.*
- App bundle ID: sh.voicebox.app -> com.talkbox.app
- Binary names: voicebox-server -> talkbox-server, voicebox-mcp -> talkbox-mcp
- Docker user/group: voicebox -> talkbox
- Database: voicebox.db -> talkbox.db
- Env vars: VOICEBOX_* -> TALKBOX_*
- Asset files renamed: voicebox-logo.* -> talkbox-logo.*, etc.
- External binaries in tauri.conf.json updated to talkbox-server/talkbox-mcp

backend/tests/E2E_MODEL_TEST_DESIGN.md

@@ -48,10 +48,10 @@ Search order — **first hit wins**:
 
 | Platform | Path | Build type |
 |----------|------|------------|
-| macOS    | `backend/dist/voicebox-server-cuda/voicebox-server-cuda` | onedir (CUDA, rarely on Mac) |
-| macOS    | `backend/dist/voicebox-server`                          | onefile (CPU) |
-| Windows  | `backend\dist\voicebox-server-cuda\voicebox-server-cuda.exe` | onedir (CUDA) |
-| Windows  | `backend\dist\voicebox-server.exe`                      | onefile (CPU) |
+| macOS    | `backend/dist/talkbox-server-cuda/talkbox-server-cuda` | onedir (CUDA, rarely on Mac) |
+| macOS    | `backend/dist/talkbox-server`                          | onefile (CPU) |
+| Windows  | `backend\dist\talkbox-server-cuda\talkbox-server-cuda.exe` | onedir (CUDA) |
+| Windows  | `backend\dist\talkbox-server.exe`                      | onefile (CPU) |
 
 If none exist, run `python backend/build_binary.py` and wait for it to finish (can take 5-20 min). Fail with a clear error if the build itself fails. `--skip-build` flag forces "error out if no binary" instead of building.
 
@@ -64,7 +64,7 @@ Mirrors Tauri's launch in `tauri/src-tauri/src/main.rs:369-388`:
 ```
 
 - **Port**: bind to `0` first in Python to grab a free port, then pass that number.
-- **Data dir**: `tempfile.mkdtemp(prefix="voicebox-e2e-")`. Deleted after the run unless `--keep-data-dir`. Profiles and generated WAVs land here.
+- **Data dir**: `tempfile.mkdtemp(prefix="talkbox-e2e-")`. Deleted after the run unless `--keep-data-dir`. Profiles and generated WAVs land here.
 - **Parent PID**: current Python PID — ensures the backend dies if the test crashes (watchdog in `server.py:102-224`).
 - **stdout/stderr**: tee to both a log file in `./results/server-<timestamp>.log` and a rolling in-memory buffer. On model failure, last 100 lines of the buffer are attached to that model's error record.
 
@@ -136,7 +136,7 @@ On timeout: cancel the SSE stream, mark the row `timeout`, and continue to the n
 ```json
 {
   "platform": "darwin-arm64",
-  "binary": "/abs/path/voicebox-server",
+  "binary": "/abs/path/talkbox-server",
   "binary_size_mb": 612,
   "started_at": "2026-04-16T12:34:56Z",
   "finished_at": "...",
@@ -160,7 +160,7 @@ On timeout: cancel the SSE stream, mark the row `timeout`, and continue to the n
 Companion `./results/e2e-<...>.md`:
 
 ```
-# Voicebox E2E — darwin-arm64 — 2026-04-16 12:34
+# TalkBox E2E — darwin-arm64 — 2026-04-16 12:34
 
 | Engine              | Size | Status | Elapsed | Error |
 |---------------------|------|--------|---------|-------|
@@ -208,7 +208,7 @@ The script uses only stdlib + `httpx` (or `requests`) + `sseclient-py` — all a
 
 - Always kill the spawned binary in a `try/finally`. On Windows, `taskkill /F /T` the whole tree (Tauri does the same).
 - Verify the port is free on shutdown (Tauri port-reuse check in `main.rs:114-186` could otherwise pick up a ghost).
-- Don't touch the user's HF cache by default — let the server use `HF_HUB_CACHE` / `VOICEBOX_MODELS_DIR`. Passing `--isolated-cache` would point both env vars at the tempdir for a true cold-start run (opt-in only; would re-download every time).
+- Don't touch the user's HF cache by default — let the server use `HF_HUB_CACHE` / `TALKBOX_MODELS_DIR`. Passing `--isolated-cache` would point both env vars at the tempdir for a true cold-start run (opt-in only; would re-download every time).
 
 ## Non-goals
 

backend/tests/__init__.py

@@ -1,5 +1,5 @@
 """
-Test suite for Voicebox backend.
+Test suite for TalkBox backend.
 
 This directory contains manual test scripts for debugging and validating
 progress tracking, model downloads, and generation functionality.

backend/tests/test_all_models_e2e.py

@@ -96,8 +96,8 @@ def find_binary() -> Optional[Path]:
     is_win = platform.system() == "Windows"
     exe = ".exe" if is_win else ""
     candidates = [
-        DIST_DIR / "voicebox-server-cuda" / f"voicebox-server-cuda{exe}",
-        DIST_DIR / f"voicebox-server{exe}",
+        DIST_DIR / "talkbox-server-cuda" / f"talkbox-server-cuda{exe}",
+        DIST_DIR / f"talkbox-server{exe}",
     ]
     for c in candidates:
         if c.exists() and c.is_file():
@@ -381,7 +381,7 @@ def write_reports(
     json_path.write_text(json.dumps(doc, indent=2))
 
     lines = [
-        f"# Voicebox E2E — {plat} — {started_at.strftime('%Y-%m-%d %H:%M UTC')}",
+        f"# TalkBox E2E — {plat} — {started_at.strftime('%Y-%m-%d %H:%M UTC')}",
         "",
         f"Binary: `{binary}`  ",
         f"Elapsed: {doc['elapsed_seconds']:.1f}s",
@@ -424,8 +424,8 @@ def write_reports(
 # ── Main ─────────────────────────────────────────────────────────────
 
 def parse_args() -> argparse.Namespace:
-    p = argparse.ArgumentParser(description="Voicebox E2E model generation test")
-    p.add_argument("--binary", type=Path, help="Path to voicebox-server binary (overrides auto-detect)")
+    p = argparse.ArgumentParser(description="TalkBox E2E model generation test")
+    p.add_argument("--binary", type=Path, help="Path to talkbox-server binary (overrides auto-detect)")
     p.add_argument("--skip-build", action="store_true", help="Error if binary missing instead of building")
     p.add_argument(
         "--reference-wav",
@@ -516,7 +516,7 @@ def main() -> int:
         print(f"[fixture] reference text: {ref_text!r}", flush=True)
 
     # Tempdir + log path
-    data_dir = Path(tempfile.mkdtemp(prefix="voicebox-e2e-"))
+    data_dir = Path(tempfile.mkdtemp(prefix="talkbox-e2e-"))
     args.output_dir.mkdir(parents=True, exist_ok=True)
     ts = datetime.now(timezone.utc).strftime("%Y%m%d-%H%M%S")
     log_path = args.output_dir / f"server-{ts}.log"

backend/tests/test_cors.py

@@ -2,7 +2,7 @@
 Tests for CORS origin restrictions.
 
 Validates that the CORS middleware only allows known local origins
-and respects the VOICEBOX_CORS_ORIGINS environment variable.
+and respects the TALKBOX_CORS_ORIGINS environment variable.
 
 Uses a minimal FastAPI app that mirrors the exact CORS configuration
 from backend/main.py, so tests run without heavy ML dependencies.
@@ -32,8 +32,8 @@ def _build_app(env_origins: str = "") -> FastAPI:
     _default_origins = [
         "http://localhost:5173",
         "http://127.0.0.1:5173",
-        "http://localhost:17493",
-        "http://127.0.0.1:17493",
+        "http://localhost:17494",
+        "http://127.0.0.1:17494",
         "tauri://localhost",
         "https://tauri.localhost",
     ]
@@ -88,8 +88,8 @@ class TestCORSDefaultOrigins:
     @pytest.mark.parametrize("origin", [
         "http://localhost:5173",
         "http://127.0.0.1:5173",
-        "http://localhost:17493",
-        "http://127.0.0.1:17493",
+        "http://localhost:17494",
+        "http://127.0.0.1:17494",
         "tauri://localhost",
         "https://tauri.localhost",
     ])
@@ -121,7 +121,7 @@ class TestCORSDefaultOrigins:
 
 
 class TestCORSCustomOrigins:
-    """VOICEBOX_CORS_ORIGINS env var should extend the allowlist."""
+    """TALKBOX_CORS_ORIGINS env var should extend the allowlist."""
 
     def test_custom_origin_allowed(self, client_with_custom_origins):
         headers = _get_with_origin(client_with_custom_origins, "https://custom.example.com")
@@ -141,7 +141,7 @@ class TestCORSCustomOrigins:
 
 
 class TestCORSEnvVarParsing:
-    """Edge cases for VOICEBOX_CORS_ORIGINS parsing."""
+    """Edge cases for TALKBOX_CORS_ORIGINS parsing."""
 
     def test_empty_env_var(self):
         app = _build_app("")

backend/tests/test_mcp_speak.py

@@ -1,4 +1,4 @@
-"""Tests for the voicebox.speak MCP tool's ``model_size`` plumbing (issue #884).
+"""Tests for the talkbox.speak MCP tool's ``model_size`` plumbing (issue #884).
 
 The MCP speak path used to build its ``GenerationRequest`` without a
 ``model_size``, so every agent-triggered generation silently fell back to the

backend/tests/test_package_rocm.py

@@ -45,7 +45,7 @@ class TestIsRocmFile:
     @pytest.mark.parametrize(
         "rel_path",
         [
-            "voicebox-server-rocm.exe",
+            "talkbox-server-rocm.exe",
             "_internal/python312.dll",
             "_internal/torch/lib/torch_cpu.dll",
             "_internal/torch/lib/c10.dll",
@@ -68,8 +68,8 @@ class TestPackage:
     """End-to-end split of a synthetic onedir into the two archives."""
 
     def test_split_and_manifest(self, tmp_path):
-        onedir = tmp_path / "voicebox-server-rocm"
-        _write(onedir / "voicebox-server-rocm.exe")
+        onedir = tmp_path / "talkbox-server-rocm"
+        _write(onedir / "talkbox-server-rocm.exe")
         _write(onedir / "_internal" / "python312.dll")
         _write(onedir / "_internal" / "rocm_sdk" / "__init__.py")
         _write(onedir / "_internal" / "torch" / "lib" / "torch_cpu.dll")
@@ -88,11 +88,11 @@ class TestPackage:
         out = tmp_path / "release-assets"
         package_rocm.package(onedir, out, "rocm7.2-v1", ">=2.9.0,<2.10.0")
 
-        server = out / "voicebox-server-rocm.tar.gz"
+        server = out / "talkbox-server-rocm.tar.gz"
         libs = out / "rocm-libs-rocm7.2-v1.tar.gz"
         assert server.exists()
         assert libs.exists()
-        assert (out / "voicebox-server-rocm.tar.gz.sha256").exists()
+        assert (out / "talkbox-server-rocm.tar.gz.sha256").exists()
         assert (out / "rocm-libs-rocm7.2-v1.tar.gz.sha256").exists()
 
         with tarfile.open(libs) as tar:
@@ -106,15 +106,15 @@ class TestPackage:
             "_internal/_rocm_sdk_libraries_custom/lib/rocblas/library/TensileLibrary.dat"
             in lib_names
         )
-        assert "voicebox-server-rocm.exe" in core_names
+        assert "talkbox-server-rocm.exe" in core_names
         assert "_internal/torch/lib/torch_cpu.dll" in core_names
         assert "_internal/rocm_sdk/__init__.py" in core_names
         # Archives must be disjoint.
         assert lib_names.isdisjoint(core_names)
 
     def test_empty_rocm_set_exits(self, tmp_path):
-        onedir = tmp_path / "voicebox-server-rocm"
-        _write(onedir / "voicebox-server-rocm.exe")
+        onedir = tmp_path / "talkbox-server-rocm"
+        _write(onedir / "talkbox-server-rocm.exe")
         _write(onedir / "_internal" / "torch" / "lib" / "torch_cpu.dll")
 
         with pytest.raises(SystemExit):

backend/tests/test_personality_samples.py

@@ -177,7 +177,7 @@ def score(
 # ── Runner ────────────────────────────────────────────────────────────
 
 
-DEFAULT_PORTS = (8000, 8765, 8899, 17493)
+DEFAULT_PORTS = (8000, 8765, 8899, 17494)
 THROWAWAY_PROFILE_PREFIX = "personality-harness-"
 KOKORO_PROBE_VOICE = "af_heart"
 """Any valid kokoro voice id works — compose never calls into TTS, it
@@ -204,7 +204,7 @@ def detect_backend_port(hint: Optional[int]) -> int:
         except Exception:
             continue
     raise SystemExit(
-        "No running Voicebox backend found. Start it (`python backend/main.py`) "
+        "No running TalkBox backend found. Start it (`python backend/main.py`) "
         f"or pass --port. Tried: {candidates}"
     )
 

backend/tests/test_progress.py

@@ -252,7 +252,7 @@ async def test_full_integration():
 async def main():
     """Run all tests."""
     print("\n" + "=" * 60)
-    print("Voicebox Progress Tracking Test Suite")
+    print("TalkBox Progress Tracking Test Suite")
     print("=" * 60)
 
     results = []

backend/tests/test_refinement_samples.py

@@ -15,7 +15,7 @@ Usage:
     python backend/tests/test_refinement_samples.py
 
     # Hit a non-default port (auto-detected via /health probe when omitted):
-    python backend/tests/test_refinement_samples.py --port 17493
+    python backend/tests/test_refinement_samples.py --port 17494
 
     # Only test one model size:
     python backend/tests/test_refinement_samples.py --model 4B
@@ -316,7 +316,7 @@ def score(sample: Sample, model: str, refined: str, latency_ms: int) -> Scorecar
 # ── Runner ────────────────────────────────────────────────────────────
 
 
-DEFAULT_PORTS = (8000, 8765, 8899, 17493)
+DEFAULT_PORTS = (8000, 8765, 8899, 17494)
 
 
 def detect_backend_port(hint: Optional[int]) -> int:
@@ -339,7 +339,7 @@ def detect_backend_port(hint: Optional[int]) -> int:
         except Exception:
             continue
     raise SystemExit(
-        "No running Voicebox backend found. Start it (`python backend/main.py`) "
+        "No running TalkBox backend found. Start it (`python backend/main.py`) "
         f"or pass --port. Tried: {candidates}"
     )
 
@@ -407,7 +407,7 @@ def format_report(cards: list[Scorecard]) -> str:
 def main() -> int:
     ap = argparse.ArgumentParser(description=__doc__)
     ap.add_argument("--port", type=int, default=None,
-                    help="Voicebox backend port (auto-detected if omitted)")
+                    help="TalkBox backend port (auto-detected if omitted)")
     ap.add_argument("--model", choices=("0.6B", "1.7B", "4B"), action="append",
                     help="Refinement model size(s) to test (repeat to run several)")
     ap.add_argument("--json", type=Path, default=None,

backend/tests/test_rocm_build.py

@@ -35,7 +35,7 @@ class TestRocmBuildArgs:
 
     def test_binary_name(self, captured_args):
         idx = captured_args.index("--name")
-        assert captured_args[idx + 1] == "voicebox-server-rocm"
+        assert captured_args[idx + 1] == "talkbox-server-rocm"
 
     def test_pack_mode_is_onedir(self, captured_args):
         assert "--onedir" in captured_args
@@ -91,8 +91,8 @@ class TestRocmBuildE2E:
         backend_dir = Path(__file__).parent.parent
         build_script = backend_dir / "build_binary.py"
         dist_dir = backend_dir / "dist"
-        binary_dir = dist_dir / "voicebox-server-rocm"
-        binary_exe = binary_dir / "voicebox-server-rocm.exe"
+        binary_dir = dist_dir / "talkbox-server-rocm"
+        binary_exe = binary_dir / "talkbox-server-rocm.exe"
 
         # Clean previous dist if it exists to ensure a fresh build
         if binary_dir.exists():

backend/tests/test_rocm_download.py

@@ -40,7 +40,7 @@ def fake_tar_gz():
     buf = BytesIO()
     with tarfile.open(fileobj=buf, mode="w:gz") as tar:
         data = b"fake binary content"
-        info = tarfile.TarInfo(name="voicebox-server-rocm.exe")
+        info = tarfile.TarInfo(name="talkbox-server-rocm.exe")
         info.size = len(data)
         tar.addfile(info, BytesIO(data))
     buf.seek(0)
@@ -137,18 +137,18 @@ async def test_download_rocm_binary_progress_reporting(mock_backends_dir, fake_t
     libs_sha = hashlib.sha256(fake_tar_gz).hexdigest()
 
     responses = {
-        "https://github.com/jamiepine/voicebox/releases/download/v0.2.3/voicebox-server-rocm.tar.gz": FakeResponse(
+        "https://github.com/jamiepine/talkbox/releases/download/v0.2.3/talkbox-server-rocm.tar.gz": FakeResponse(
             content=fake_tar_gz,
             headers={"content-length": str(len(fake_tar_gz))},
         ),
-        "https://github.com/jamiepine/voicebox/releases/download/v0.2.3/voicebox-server-rocm.tar.gz.sha256": FakeResponse(
-            content=f"{server_sha}  voicebox-server-rocm.tar.gz\n".encode(),
+        "https://github.com/jamiepine/talkbox/releases/download/v0.2.3/talkbox-server-rocm.tar.gz.sha256": FakeResponse(
+            content=f"{server_sha}  talkbox-server-rocm.tar.gz\n".encode(),
         ),
-        f"https://github.com/jamiepine/voicebox/releases/download/v0.2.3/rocm-libs-{rocm.ROCM_LIBS_VERSION}.tar.gz": FakeResponse(
+        f"https://github.com/jamiepine/talkbox/releases/download/v0.2.3/rocm-libs-{rocm.ROCM_LIBS_VERSION}.tar.gz": FakeResponse(
             content=fake_tar_gz,
             headers={"content-length": str(len(fake_tar_gz))},
         ),
-        f"https://github.com/jamiepine/voicebox/releases/download/v0.2.3/rocm-libs-{rocm.ROCM_LIBS_VERSION}.tar.gz.sha256": FakeResponse(
+        f"https://github.com/jamiepine/talkbox/releases/download/v0.2.3/rocm-libs-{rocm.ROCM_LIBS_VERSION}.tar.gz.sha256": FakeResponse(
             content=f"{libs_sha}  rocm-libs.tar.gz\n".encode(),
         ),
     }
@@ -160,7 +160,7 @@ async def test_download_rocm_binary_progress_reporting(mock_backends_dir, fake_t
 
     # Verify extraction
     rocm_dir = rocm.get_rocm_dir()
-    assert (rocm_dir / "voicebox-server-rocm.exe").exists()
+    assert (rocm_dir / "talkbox-server-rocm.exe").exists()
 
     # Verify manifest written
     manifest_path = rocm.get_rocm_libs_manifest_path()
@@ -177,13 +177,13 @@ async def test_download_rocm_binary_progress_reporting(mock_backends_dir, fake_t
 
 @pytest.mark.asyncio
 async def test_is_rocm_active(mock_backends_dir, monkeypatch):
-    monkeypatch.setenv("VOICEBOX_BACKEND_VARIANT", "rocm")
+    monkeypatch.setenv("TALKBOX_BACKEND_VARIANT", "rocm")
     assert rocm.is_rocm_active() is True
 
-    monkeypatch.setenv("VOICEBOX_BACKEND_VARIANT", "cpu")
+    monkeypatch.setenv("TALKBOX_BACKEND_VARIANT", "cpu")
     assert rocm.is_rocm_active() is False
 
-    monkeypatch.delenv("VOICEBOX_BACKEND_VARIANT", raising=False)
+    monkeypatch.delenv("TALKBOX_BACKEND_VARIANT", raising=False)
     assert rocm.is_rocm_active() is False
 
 

backend/tests/test_rocm_requirements.py

@@ -65,8 +65,8 @@ class TestRocmRequirements:
 
     @pytest.mark.timeout(900)
     @pytest.mark.skipif(
-        not os.environ.get("VOICEBOX_TEST_ROCM_INSTALL"),
-        reason="Set VOICEBOX_TEST_ROCM_INSTALL=1 to run the heavy install test",
+        not os.environ.get("TALKBOX_TEST_ROCM_INSTALL"),
+        reason="Set TALKBOX_TEST_ROCM_INSTALL=1 to run the heavy install test",
     )
     def test_rocm_torch_installs_and_detects_amd(self, backend_dir):
         """