Merge origin/main into model-download-links

Co-authored-by: OpenCode <noreply@opencode.ai>

Author: hi-ogawa-agent

packages/app/.fallowrc.json .fallowrc.jsonpackages/app/.fallowrc.json renamed to .fallowrc.json

@@ -62,7 +62,7 @@ jobs:
             --two-stems-mix minus \
             fixtures/sine-10s.wav data/ci-output/native
           test -s data/ci-output/native/bass.wav
-          test -s data/ci-output/native/no_bass.wav
+          test -s data/ci-output/native/backing.wav
 
       - run: pnpm build-wasm
 

.github/workflows/ci.yml

@@ -0,0 +1,31 @@
+name: pkg.pr.new
+
+on:
+  pull_request:
+
+concurrency:
+  group: pkg-pr-new-${{ github.event.pull_request.number }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+
+    steps:
+      - uses: actions/checkout@v6
+
+      - uses: actions/setup-node@v6
+        with:
+          node-version: "lts/*"
+
+      - run: corepack enable
+
+      - run: pnpm install --frozen-lockfile
+
+      - run: pnpm build-wasm
+
+      - run: pnpm exec pkg-pr-new publish --no-compact ./crates/wasm

.github/workflows/pkg-pr-new.yml

@@ -39,7 +39,7 @@ pnpm model-release download models-2026-07-11 htdemucs_ft_bass
 pnpm cli-separate --name htdemucs_ft --two-stems bass --two-stems-mix minus data/input/song.wav data/output/song
 ```
 
-This creates `bass.wav` and `no_bass.wav`.
+This creates `bass.wav` and `backing.wav`.
 
 Run the same separation flow through the Rust/WASM driver and
 `onnxruntime-web`'s Node WASM runtime with:
@@ -81,6 +81,8 @@ pnpm dev
 
 Open `http://localhost:5173`, choose a local audio file and the required model files from `data/onnx-lean/`, then run separation. Audio and models stay in the browser.
 
+When separation finishes, the app automatically downloads all generated stems as a source-named archive such as `song_wav.stems.zip`. Individual stem previews and WAV downloads remain available in the results.
+
 Build the static app with:
 
 ```bash

README.md

@@ -129,7 +129,7 @@ fn separate(args: SeparateArgs) -> Result<()> {
             complement,
         } => vec![
             (source.name().to_string(), target),
-            (format!("no_{}", source.name()), complement),
+            ("backing".to_string(), complement),
         ],
     };
     std::fs::create_dir_all(&args.out_dir)?;

crates/cli/src/main.rs

@@ -83,7 +83,7 @@ impl Source {
 }
 
 /// What a separation yields, exactly; each track is stereo, `[channel][sample]`.
-/// How tracks are spelled (e.g. `no_bass.wav`) is the driver's concern.
+/// How tracks are spelled (e.g. `backing.wav`) is the driver's concern.
 pub enum Outputs {
     /// All four stems, in [`Source::ALL`] order.
     Full([[Vec<f32>; CHANNELS]; NUM_SOURCES]),

crates/core/src/lib.rs

@@ -0,0 +1,15 @@
+{
+  "name": "@hiogawa/demucs-onnx-wasm",
+  "version": "0.0.0",
+  "files": [
+    "pkg"
+  ],
+  "type": "module",
+  "exports": "./pkg/demucs_wasm.js",
+  "scripts": {
+    "build": "wasm-pack build . --target web --no-pack --release && rm -f pkg/.gitignore"
+  },
+  "devDependencies": {
+    "wasm-pack": "0.15.0"
+  }
+}

crates/wasm/package.json

@@ -9,19 +9,23 @@
     "build-model": "uv run python tools/model-export/build_models.py",
     "verify-parity": "uv run python tools/model-export/verify_parity.py",
     "model-release": "uv run --no-sync tools/model_release.py",
-    "build-wasm": "wasm-pack build crates/wasm --target web --release",
+    "build-wasm": "pnpm -C crates/wasm build",
     "wasm-separate": "pnpm -C packages/app wasm-separate",
     "build": "pnpm build-wasm && pnpm -C packages/app build",
     "build-cf": "(command -v cargo >/dev/null || curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --profile minimal) && PATH=\"$HOME/.cargo/bin:$PATH\" pnpm build",
     "cli-separate": "cargo run --release -p demucs-cli -- separate --models data/onnx-lean",
     "dev": "pnpm -C packages/app dev",
-    "lint": "cargo fmt --all && vp check --fix && pnpm -C packages/app lint",
-    "lint-check": "cargo fmt --all -- --check && vp check && pnpm -C packages/app lint",
+    "typecheck": "tsc -b packages/app",
+    "lint-dead-code": "fallow dead-code --unused-exports --unused-types",
+    "lint": "cargo fmt --all && vp check --fix && pnpm lint-dead-code && pnpm typecheck",
+    "lint-check": "cargo fmt --all -- --check && vp check && pnpm lint-dead-code && pnpm typecheck",
     "test-e2e": "pnpm -C packages/app test-e2e"
   },
   "devDependencies": {
+    "fallow": "^3.3.0",
+    "pkg-pr-new": "0.0.75",
+    "typescript": "^7.0.2",
     "vite-plus": "^0.2.4",
-    "wasm-pack": "0.15.0",
     "wrangler": "4.110.0"
   },
   "packageManager": "pnpm@11.11.0+sha512.4463f65fd80ed80d69bc1d4bf163ee94f605c7380fc318bb5b2ebe15f8cd12d49c51a4d59e951b401e764d3b6ca751cbf51bc50ed7001a6bcb4935e684c34882"

package.json

@@ -19,7 +19,7 @@ test("restores and updates configuration preferences", async ({ page }) => {
   await expect(page.locator("#method")).toHaveValue("minus");
   await expect(page.locator("#method")).toBeEnabled();
   await expect(page.locator("#outputSummary")).toContainText(
-    "Creates bass.wav and no_bass.wav.",
+    "Creates bass.wav and backing.wav.",
   );
   await expect(page.locator("#shifts")).toHaveValue("3");
   await expect(page.getByLabel("Select htdemucs_ft_bass.onnx")).toBeAttached();

packages/app/e2e/preferences.spec.ts

@@ -20,6 +20,7 @@ test("separates a clip fully client-side", async ({ page }) => {
   await page.setInputFiles("#file", FIXTURE);
   await expect(page.locator("#audio-status")).toContainText("Decoded: 2.00s");
 
+  const downloadPromise = page.waitForEvent("download");
   await page.click("#run");
   await expect(
     page.getByRole("progressbar", { name: "Overall separation progress" }),
@@ -31,6 +32,8 @@ test("separates a clip fully client-side", async ({ page }) => {
     timeout: 300_000,
   });
   await expect(page.getByTestId("timing-summary")).toContainText("Inference");
+  const download = await downloadPromise;
+  expect(download.suggestedFilename()).toBe("sine-2s_wav.stems.zip");
 
   const stems = page.locator("#stems > div");
   await expect(stems).toHaveCount(4);
@@ -39,4 +42,7 @@ test("separates a clip fully client-side", async ({ page }) => {
   }
   await expect(page.locator("#stems audio")).toHaveCount(4);
   await expect(page.locator("#stems a")).toHaveCount(4);
+  await expect(
+    page.getByRole("link", { name: "Download ZIP" }),
+  ).toHaveAttribute("download", "sine-2s_wav.stems.zip");
 });