diff --git a/VERSION b/VERSION
index 6c6aa7c..17e51c3 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.1.0
\ No newline at end of file
+0.1.1
diff --git a/chat-summaries/2026-09-22_13-39-build-cleanup-release-packaging-summary.md b/chat-summaries/2026-09-22_13-39-build-cleanup-release-packaging-summary.md
new file mode 100644
index 0000000..92f004c
--- /dev/null
+++ b/chat-summaries/2026-09-22_13-39-build-cleanup-release-packaging-summary.md
@@ -0,0 +1,62 @@
+# Build Cleanup & Release Packaging
+
+**Date:** 2026-09-22 13:39
+**Commits:** 4bf6545..1ea7f19 (5 commits)
+
+## Task Description
+
+Resolved all build warnings/errors across the frontend (svelte-check, Vite) and backend (cargo), fixed a failing test, and implemented a release build script that produces a distributable `GUI Video Clipper.app` bundle.
+
+## Changes Made
+
+### Task 1: TypeScript Error Fixes (`3eebe01`)
+- Installed `@types/node` as dev dependency
+- Added `"types": ["node"]` to `tsconfig.json`
+- Changed `defineConfig` import in `vite.config.ts` from `vite` to `vitest/config` (extends config type with `test` property)
+- Result: 4 TS errors → 0
+
+### Task 2: Svelte A11y Warning Fixes (`9d1f1cf`)
+- **CaptionSettingsPanel.svelte**: 9 label/control association fixes (id/for pairs and wrapping)
+- **ClipList.svelte**: Added `tabindex="0"` and keyboard handler to listbox container
+- **PreferencesPanel.svelte, ExportDialog.svelte, AboutDialog.svelte**: Added `tabindex="-1"` to dialog divs, keyboard handlers on overlays
+- **VideoPlayer.svelte**: Added `<track kind="captions" />` to `<video>` element
+- **App.svelte**: Added keyboard support to resize handle (`role="slider"`, arrow keys, aria-value attrs)
+- Result: 19 a11y warnings → 0
+
+### Task 3: Rust Dead Code Annotations (`d85fbda`)
+- Added `#[allow(dead_code)]` with comments on 6 items across 4 files:
+  - `ExportEvent::Error`, `DownloadEvent::Error` (reserved for future use)
+  - `sanitize_vtt_for_ffmpeg`, `opacity_to_ass_back_colour`, `caption_style_to_force_style` (caption burn-in pipeline)
+  - `SubtitleFormat.ext`/`.url` (serde deserialization fields)
+- Result: 6 warnings → 0
+
+### Task 4: Test Fix (`30b04b4`)
+- Changed `markInPoint(5)` to `markInPoint(12)` in clips.test.ts
+- Time 5 was outside `EDIT_TOLERANCE` (0.5s) of clip boundary (10-20), so `isTimeInsideClip` returned false and the edit path didn't execute
+- Result: 1 failing test → 31/31 pass
+
+### Task 5: Release Build Script (`1ea7f19`)
+- Created `scripts/build-release.sh`: builds, ad-hoc signs, copies to `dist/release/`
+- Changed `tauri.conf.json` bundle targets from `"all"` to `["app", "dmg"]`
+- Added `dist/` to `.gitignore`
+- Added `"release"` npm script
+- Updated README with Release Build section
+- Script parses tauri build output for .app/.dmg paths (handles custom CARGO_TARGET_DIR)
+- Result: `npm run release` → `GUI Video Clipper.app` (6.2M) + `.dmg` (2.8M)
+
+## Verification Results
+- `npm run check`: 0 errors, 0 warnings
+- `npm test`: 31/31 pass
+- `cargo build`: 0 warnings
+- `npm run release`: produces signed .app + .dmg
+
+## Lessons Learned
+- **Cursor sandbox CARGO_TARGET_DIR**: The Tauri build outputs to a sandboxed cache directory, not `src-tauri/target/`. The build script must parse the actual output paths from `npx tauri build` output rather than hardcoding the expected location.
+- **Svelte a11y linter strictness**: `role="separator"` with keyboard support still triggers `a11y_no_noninteractive_element_interactions`. Using `role="slider"` satisfies the linter for resize handles.
+- **Dialog overlay keyboard patterns**: Adding `onkeydown` + `tabindex="-1"` to overlays and `e.stopPropagation()` to inner dialogs satisfies the click-needs-keyboard-equivalent rule, but the stopPropagation means Escape from inside the dialog won't bubble to the overlay handler. Not a regression since dialogs previously had no keyboard close.
+- **Test EDIT_TOLERANCE awareness**: When testing functions that use proximity checks (`isTimeInsideClip`), test values must account for tolerance thresholds. Values outside tolerance trigger different code paths.
+
+## Follow-up Items
+- Push new commits to remote: `git push origin master`
+- Consider re-tagging `v0.1.0` to include these cleanup commits, or tag as `v0.1.1`
+- Dialog Escape-from-inside behavior could be improved in a future pass (add Escape handler on the dialog div itself, not just the overlay)
diff --git a/docs/superpowers/plans/2026-09-22-build-cleanup-release-packaging.md b/docs/superpowers/plans/2026-09-22-build-cleanup-release-packaging.md
new file mode 100644
index 0000000..0e8cad0
--- /dev/null
+++ b/docs/superpowers/plans/2026-09-22-build-cleanup-release-packaging.md
@@ -0,0 +1,733 @@
+# Build Cleanup & Release Packaging Implementation Plan
+
+> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
+
+**Goal:** Eliminate all build warnings/errors across frontend and backend, fix the failing test, and implement a release build script that produces a distributable `GUI Video Clipper.app`.
+
+**Architecture:** Direct fixes to existing files — no new components or modules except `scripts/build-release.sh`. TypeScript config fixes, Svelte a11y attribute additions, Rust `#[allow]` annotations, one test assertion update, and a new shell script.
+
+**Tech Stack:** Svelte 5, TypeScript, Vite/Vitest, Rust/Cargo, Tauri v2, Bash
+
+## Global Constraints
+
+- macOS is the only target platform
+- All changes must result in zero warnings from `npm run check`, `cargo build`, and `npm test`
+- Preserve existing runtime behavior — these are lint/warning fixes, not behavioral changes
+- Follow existing code patterns and styles in each file
+
+---
+
+### Task 1: TypeScript Error Fixes
+
+**Files:**
+- Modify: `tsconfig.json`
+- Modify: `vite.config.ts:1` (import line only)
+- Test: `npm run check` (svelte-check)
+
+**Interfaces:**
+- Consumes: nothing
+- Produces: Clean `npm run check` (0 errors for T1–T4; a11y warnings will still be present until Task 2)
+
+- [ ] **Step 1: Install `@types/node`**
+
+Run:
+```bash
+npm install -D @types/node
+```
+
+Expected: Package added to `devDependencies` in `package.json`.
+
+- [ ] **Step 2: Add `"types": ["node"]` to `tsconfig.json`**
+
+Edit `tsconfig.json` — add `"types": ["node"]` inside `compilerOptions`:
+
+```json
+{
+  "compilerOptions": {
+    "allowJs": true,
+    "checkJs": true,
+    "esModuleInterop": true,
+    "forceConsistentCasingInFileNames": true,
+    "resolveJsonModule": true,
+    "skipLibCheck": true,
+    "sourceMap": true,
+    "strict": true,
+    "moduleResolution": "bundler",
+    "module": "ESNext",
+    "target": "ESNext",
+    "isolatedModules": true,
+    "types": ["node"],
+    "paths": {
+      "$lib/*": ["./src/lib/*"]
+    }
+  },
+  "include": ["src/**/*.ts", "src/**/*.svelte", "tests/**/*.ts", "vite.config.ts"]
+}
+```
+
+- [ ] **Step 3: Change `defineConfig` import in `vite.config.ts`**
+
+Change line 4 from:
+```typescript
+import { defineConfig } from 'vite';
+```
+to:
+```typescript
+import { defineConfig } from 'vitest/config';
+```
+
+This re-export extends `UserConfigExport` with vitest's `test` property.
+
+- [ ] **Step 4: Verify TS errors are resolved**
+
+Run:
+```bash
+npm run check 2>&1 | grep -E "^(Error|.*Error:)"
+```
+
+Expected: No lines matching "Error" — only a11y warnings remain.
+
+- [ ] **Step 5: Commit**
+
+```bash
+git add tsconfig.json vite.config.ts package.json package-lock.json
+git commit -m "fix: resolve TypeScript errors in vite.config.ts
+
+- Install @types/node for node:path, node:process, node:url
+- Import defineConfig from vitest/config for test config type
+- Add types: [\"node\"] to tsconfig.json"
+```
+
+---
+
+### Task 2: Svelte A11y Warning Fixes
+
+**Files:**
+- Modify: `src/lib/components/CaptionSettingsPanel.svelte:48-209` (label associations)
+- Modify: `src/lib/components/ClipList.svelte:46` (tabindex + keydown)
+- Modify: `src/lib/components/PreferencesPanel.svelte:60-61` (tabindex + keydown)
+- Modify: `src/lib/components/ExportDialog.svelte:139-140` (tabindex + keydown)
+- Modify: `src/lib/components/AboutDialog.svelte:15-16` (tabindex + keydown)
+- Modify: `src/lib/components/VideoPlayer.svelte:187-197` (track element)
+- Modify: `src/App.svelte:188-193` (resize handle keyboard support)
+- Test: `npm run check` (svelte-check)
+
+**Interfaces:**
+- Consumes: Task 1 completed (TS errors resolved)
+- Produces: Zero a11y warnings from `npm run check` and `npm run build`
+
+- [ ] **Step 1: Fix CaptionSettingsPanel labels (9 warnings)**
+
+The labels at lines 48, 61, 74, 90, 108, 120, 165, 195, and 209 are not associated with their controls. Fix each by adding `id` attributes to controls and `for` attributes to labels. Use unique IDs prefixed with `caption-`.
+
+**Line 48 — Font label + select:** Change:
+```svelte
+<label>Font</label>
+<select
+  value={settings.fontFamily}
+```
+to:
+```svelte
+<label for="caption-font">Font</label>
+<select
+  id="caption-font"
+  value={settings.fontFamily}
+```
+
+**Line 61 — Font Size label + range input:** The label wraps the text but not the input. Wrap the input inside the label:
+```svelte
+<label>
+  Font Size
+  <span class="value">{settings.fontSize}px</span>
+  <input
+    type="range" min="12" max="36" step="1"
+    value={settings.fontSize}
+    oninput={(e) => update({ fontSize: parseInt((e.target as HTMLInputElement).value, 10) })}
+  />
+</label>
+```
+
+Remove the standalone `<input>` that was a sibling below the closing `</label>`.
+
+**Line 74 — Text Color label:** Change:
+```svelte
+<label>Text Color</label>
+<div class="row-controls">
+  <input
+    type="color" value={settings.textColor}
+```
+to:
+```svelte
+<label for="caption-text-color">Text Color</label>
+<div class="row-controls">
+  <input
+    id="caption-text-color"
+    type="color" value={settings.textColor}
+```
+
+**Line 90 — Dimmed Text label:** This is a heading-style label for a radio group. Use `id`/`for` pointing to the first radio:
+```svelte
+<label for="caption-dimmed-auto">Dimmed Text</label>
+<div class="radio-row">
+  <label>
+    <input id="caption-dimmed-auto" type="radio" name="dimmed-mode" value="auto"
+```
+
+**Line 108 — Dim Opacity label + range:** Wrap the input inside the label (same pattern as Font Size):
+```svelte
+<label>
+  Dim Opacity
+  <span class="value">{Math.round(settings.dimmedOpacity * 100)}%</span>
+  <input
+    type="range" min="10" max="90" step="5"
+    value={Math.round(settings.dimmedOpacity * 100)}
+    oninput={(e) => update({ dimmedOpacity: parseInt((e.target as HTMLInputElement).value, 10) / 100 })}
+  />
+</label>
+```
+
+Remove the standalone `<input>` below.
+
+**Line 120 — Dimmed Color label:** Change:
+```svelte
+<label>Dimmed Color</label>
+<div class="row-controls">
+  <input
+    type="color" value={settings.dimmedColor}
+```
+to:
+```svelte
+<label for="caption-dimmed-color">Dimmed Color</label>
+<div class="row-controls">
+  <input
+    id="caption-dimmed-color"
+    type="color" value={settings.dimmedColor}
+```
+
+**Line 165 — BG Opacity label + range:** Wrap input inside label (same as Font Size/Dim Opacity):
+```svelte
+<label>
+  BG Opacity
+  <span class="value">{Math.round(settings.backgroundOpacity * 100)}%</span>
+  <input
+    type="range" min="0" max="100" step="5"
+    value={Math.round(settings.backgroundOpacity * 100)}
+    oninput={(e) => update({ backgroundOpacity: parseInt((e.target as HTMLInputElement).value, 10) / 100 })}
+  />
+</label>
+```
+
+Remove the standalone `<input>` below.
+
+**Line 195 — Shadow Depth label + range:** Wrap input inside label:
+```svelte
+<label>
+  Shadow Depth
+  <span class="value">{settings.shadowDepth}px</span>
+  <input
+    type="range" min="1" max="5" step="1"
+    value={settings.shadowDepth}
+    oninput={(e) => update({ shadowDepth: parseInt((e.target as HTMLInputElement).value, 10) })}
+  />
+</label>
+```
+
+Remove the standalone `<input>` below.
+
+**Line 209 — Position label:** Same as Dimmed Text — heading for radio group:
+```svelte
+<label for="caption-pos-bottom">Position</label>
+<div class="radio-row">
+  <label>
+    <input id="caption-pos-bottom" type="radio" name="caption-position" value="bottom"
+```
+
+- [ ] **Step 2: Fix ClipList (2 warnings: tabindex + key handler)**
+
+In `ClipList.svelte` line 46, the `<div class="clip-list" role="listbox">` needs `tabindex="0"` and a `onkeydown` handler. Change:
+
+```svelte
+<div class="clip-list" role="listbox" onclick={handleContainerClick}>
+```
+to:
+```svelte
+<div
+  class="clip-list"
+  role="listbox"
+  tabindex="0"
+  onclick={handleContainerClick}
+  onkeydown={(e) => {
+    if (e.key === 'Escape') {
+      selectClip(null);
+    }
+  }}
+>
+```
+
+- [ ] **Step 3: Fix PreferencesPanel (2 warnings: tabindex + key handler)**
+
+In `PreferencesPanel.svelte`, change lines 60-61:
+
+```svelte
+<div class="overlay" role="presentation" onclick={onClose}>
+  <div class="panel" role="dialog" onclick={(e) => e.stopPropagation()}>
+```
+to:
+```svelte
+<div class="overlay" role="presentation" onclick={onClose} onkeydown={(e) => { if (e.key === 'Escape') onClose(); }}>
+  <div class="panel" role="dialog" tabindex="-1" onclick={(e) => e.stopPropagation()}>
+```
+
+- [ ] **Step 4: Fix ExportDialog (2 warnings: tabindex + key handler)**
+
+In `ExportDialog.svelte`, change lines 139-140:
+
+```svelte
+<div class="overlay" role="presentation" onclick={onClose}>
+  <div class="dialog" role="dialog" onclick={(e) => e.stopPropagation()}>
+```
+to:
+```svelte
+<div class="overlay" role="presentation" onclick={onClose} onkeydown={(e) => { if (e.key === 'Escape') onClose(); }}>
+  <div class="dialog" role="dialog" tabindex="-1" onclick={(e) => e.stopPropagation()}>
+```
+
+- [ ] **Step 5: Fix AboutDialog (2 warnings: tabindex + key handler)**
+
+In `AboutDialog.svelte`, change lines 15-16:
+
+```svelte
+<div class="overlay" role="presentation" onclick={onClose}>
+  <div class="dialog" role="dialog" onclick={(e) => e.stopPropagation()}>
+```
+to:
+```svelte
+<div class="overlay" role="presentation" onclick={onClose} onkeydown={(e) => { if (e.key === 'Escape') onClose(); }}>
+  <div class="dialog" role="dialog" tabindex="-1" onclick={(e) => e.stopPropagation()}>
+```
+
+- [ ] **Step 6: Fix VideoPlayer (1 warning: video without track)**
+
+In `VideoPlayer.svelte`, add a `<track>` inside the `<video>` element after the `playsinline` attribute (around line 197):
+
+```svelte
+    <video
+      bind:this={videoElement}
+      src={videoSrc}
+      ontimeupdate={handleTimeUpdate}
+      onplay={handlePlay}
+      onpause={handlePause}
+      onerror={handleError}
+      onloadeddata={handleLoadedData}
+      preload="metadata"
+      playsinline
+    >
+      <track kind="captions" />
+    </video>
+```
+
+Note: change the self-closing `></video>` to wrap the `<track>` element.
+
+- [ ] **Step 7: Fix App.svelte resize handle (1 warning: non-interactive element with mouse handler)**
+
+In `App.svelte`, update the resize handle div (lines 188-193) to add keyboard support:
+
+```svelte
+      <div
+        class="resize-handle"
+        class:active={isResizing}
+        role="separator"
+        aria-orientation="horizontal"
+        aria-valuenow={timelineHeight}
+        aria-valuemin={40}
+        aria-valuemax={500}
+        tabindex="0"
+        onmousedown={handleResizeStart}
+        onkeydown={(e) => {
+          if (e.key === 'ArrowDown') {
+            e.preventDefault();
+            timelineHeight = Math.min(500, timelineHeight + 10);
+          } else if (e.key === 'ArrowUp') {
+            e.preventDefault();
+            timelineHeight = Math.max(40, timelineHeight - 10);
+          }
+        }}
+      ></div>
+```
+
+- [ ] **Step 8: Verify all a11y warnings are resolved**
+
+Run:
+```bash
+npm run check 2>&1
+```
+
+Expected: `svelte-check found 0 errors and 0 warnings`
+
+Also verify the production build:
+```bash
+npm run build 2>&1 | grep -c "svelte"
+```
+
+Expected: No a11y warnings in the Vite build output (only the normal build success lines).
+
+- [ ] **Step 9: Commit**
+
+```bash
+git add src/lib/components/CaptionSettingsPanel.svelte \
+        src/lib/components/ClipList.svelte \
+        src/lib/components/PreferencesPanel.svelte \
+        src/lib/components/ExportDialog.svelte \
+        src/lib/components/AboutDialog.svelte \
+        src/lib/components/VideoPlayer.svelte \
+        src/App.svelte
+git commit -m "fix: resolve all Svelte a11y warnings
+
+- Associate labels with controls in CaptionSettingsPanel (9 warnings)
+- Add tabindex and keyboard handlers to dialog overlays (8 warnings)
+- Add <track> to video element for caption accessibility
+- Add keyboard support to resize handle separator"
+```
+
+---
+
+### Task 3: Rust Dead Code Annotations
+
+**Files:**
+- Modify: `src-tauri/src/commands/export.rs:23`
+- Modify: `src-tauri/src/commands/video.rs:23`
+- Modify: `src-tauri/src/services/clip_exporter.rs:10,204,210`
+- Modify: `src-tauri/src/services/video_resolver.rs:7`
+- Test: `cargo build`
+
+**Interfaces:**
+- Consumes: nothing
+- Produces: Zero warnings from `cargo build`
+
+- [ ] **Step 1: Annotate `ExportEvent::Error` in `commands/export.rs`**
+
+Add `#[allow(dead_code)]` on the `Error` variant (line 23):
+
+```rust
+    Finished {
+        paths: Vec<String>,
+    },
+    #[allow(dead_code)] // Reserved for future error-channel reporting
+    Error {
+        message: String,
+    },
+```
+
+- [ ] **Step 2: Annotate `DownloadEvent::Error` in `commands/video.rs`**
+
+Add `#[allow(dead_code)]` on the `Error` variant (line 23):
+
+```rust
+    Finished { success: bool, path: String },
+    #[allow(dead_code)] // Reserved for future error-channel reporting
+    Error { message: String },
+```
+
+- [ ] **Step 3: Annotate unused functions in `services/clip_exporter.rs`**
+
+Add `#[allow(dead_code)]` on each unused function:
+
+Line 10:
+```rust
+/// Strip YouTube auto-generated VTT karaoke tags and positioning metadata
+/// that confuse ffmpeg's VTT parser / mov_text conversion.
+/// Returns the path to a cleaned temp VTT file.
+#[allow(dead_code)] // Scaffolded for caption burn-in pipeline
+pub fn sanitize_vtt_for_ffmpeg(caption_path: &str, temp_dir: &str) -> Result<String, String> {
+```
+
+Line 204:
+```rust
+#[allow(dead_code)] // Scaffolded for caption burn-in pipeline
+fn opacity_to_ass_back_colour(opacity: f64) -> String {
+```
+
+Line 210:
+```rust
+#[allow(dead_code)] // Scaffolded for caption burn-in pipeline
+fn caption_style_to_force_style(style: &CaptionStyle) -> String {
+```
+
+- [ ] **Step 4: Annotate `SubtitleFormat` in `services/video_resolver.rs`**
+
+Add `#[allow(dead_code)]` on the struct (line 7):
+
+```rust
+#[derive(Debug, Deserialize)]
+#[allow(dead_code)] // Fields used for serde deserialization
+pub struct SubtitleFormat {
+    pub ext: Option<String>,
+    pub url: Option<String>,
+}
+```
+
+- [ ] **Step 5: Verify zero Rust warnings**
+
+Run:
+```bash
+cd src-tauri && cargo build 2>&1 | grep "warning:"
+```
+
+Expected: No output (zero warnings).
+
+- [ ] **Step 6: Commit**
+
+```bash
+git add src-tauri/src/commands/export.rs \
+        src-tauri/src/commands/video.rs \
+        src-tauri/src/services/clip_exporter.rs \
+        src-tauri/src/services/video_resolver.rs
+git commit -m "fix: suppress Rust dead code warnings with annotations
+
+- ExportEvent::Error and DownloadEvent::Error reserved for future use
+- clip_exporter functions scaffolded for caption burn-in pipeline
+- SubtitleFormat fields required for serde deserialization"
+```
+
+---
+
+### Task 4: Test Fix
+
+**Files:**
+- Modify: `tests/lib/stores/clips.test.ts:60-68`
+- Test: `npm test`
+
+**Interfaces:**
+- Consumes: nothing (test-only change)
+- Produces: 31/31 tests passing
+
+- [ ] **Step 1: Update the failing test assertion**
+
+In `tests/lib/stores/clips.test.ts`, change the test "updates selected clip start when I is pressed" (lines 60-68):
+
+```typescript
+  it('updates selected clip start when I is pressed', () => {
+    addClip(10, 20);
+    const id = getClips()[0].id;
+    selectClip(id);
+
+    markInPoint(12);
+    expect(getClips()[0].startTime).toBe(12);
+    expect(getPendingInPoint()).toBeNull();
+  });
+```
+
+The change: `markInPoint(5)` → `markInPoint(12)` and `toBe(5)` → `toBe(12)`.
+
+Time 12 is inside the clip (10–20) so `isTimeInsideClip` returns true and the edit path runs. Time 5 was outside the 0.5s tolerance (needed ≥ 9.5).
+
+- [ ] **Step 2: Verify all tests pass**
+
+Run:
+```bash
+npm test
+```
+
+Expected:
+```
+ Test Files  5 passed (5)
+      Tests  31 passed (31)
+```
+
+- [ ] **Step 3: Commit**
+
+```bash
+git add tests/lib/stores/clips.test.ts
+git commit -m "fix: correct clip in-point edit test for EDIT_TOLERANCE
+
+markInPoint(5) is outside the clip (10-20) with 0.5s tolerance.
+Use markInPoint(12) which is inside the clip and triggers the edit path."
+```
+
+---
+
+### Task 5: Release Build Script & Packaging
+
+**Files:**
+- Create: `scripts/build-release.sh`
+- Modify: `src-tauri/tauri.conf.json:38` (bundle targets)
+- Modify: `.gitignore` (add `dist/`)
+- Modify: `package.json` (add `release` script)
+- Modify: `README.md` (add Release Build section)
+- Test: `npm run release`
+
+**Interfaces:**
+- Consumes: Tasks 1–4 completed (clean builds)
+- Produces: `dist/release/GUI Video Clipper.app` — a runnable, ad-hoc signed macOS app bundle
+
+- [ ] **Step 1: Change bundle targets in `tauri.conf.json`**
+
+In `src-tauri/tauri.conf.json`, change line 38 from:
+
+```json
+    "targets": "all",
+```
+to:
+```json
+    "targets": ["app", "dmg"],
+```
+
+- [ ] **Step 2: Add `dist/` to `.gitignore`**
+
+Append to `.gitignore`:
+
+```
+dist/
+```
+
+- [ ] **Step 3: Add `release` script to `package.json`**
+
+Add to the `"scripts"` section of `package.json`:
+
+```json
+    "release": "bash scripts/build-release.sh"
+```
+
+Place it after the existing `"tauri"` script.
+
+- [ ] **Step 4: Create `scripts/build-release.sh`**
+
+```bash
+#!/usr/bin/env bash
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
+VERSION_FILE="$PROJECT_ROOT/VERSION"
+
+# ── Read and validate version ──────────────────────────────────────
+if [ ! -f "$VERSION_FILE" ]; then
+  echo "ERROR: VERSION file not found" >&2
+  exit 1
+fi
+
+VERSION=$(cat "$VERSION_FILE" | sed 's/^[vV]//' | tr -d '[:space:]')
+
+if ! echo "$VERSION" | grep -qE '^[0-9]+\.[0-9]+\.[0-9]+$'; then
+  echo "ERROR: '$VERSION' is not valid semver (expected X.Y.Z)" >&2
+  exit 1
+fi
+
+echo "=== Building GUI Video Clipper v$VERSION ==="
+echo ""
+
+# ── Install frontend dependencies ──────────────────────────────────
+echo "→ Installing dependencies…"
+cd "$PROJECT_ROOT"
+npm install --silent
+
+# ── Run tauri build ────────────────────────────────────────────────
+echo "→ Building release (this may take a few minutes)…"
+npx tauri build 2>&1 | tail -5
+
+# ── Locate built artifacts ─────────────────────────────────────────
+# Tauri outputs to src-tauri/target/release/bundle/
+BUNDLE_DIR="$PROJECT_ROOT/src-tauri/target/release/bundle"
+APP_SRC="$BUNDLE_DIR/macos/GUI Video Clipper.app"
+DMG_GLOB="$BUNDLE_DIR/dmg/GUI Video Clipper_*.dmg"
+
+if [ ! -d "$APP_SRC" ]; then
+  echo "ERROR: .app bundle not found at '$APP_SRC'" >&2
+  echo "Check the build output above for errors." >&2
+  exit 1
+fi
+
+# ── Ad-hoc code sign ──────────────────────────────────────────────
+echo "→ Ad-hoc signing .app…"
+codesign --force --deep -s - "$APP_SRC"
+
+# ── Copy to dist/release/ ─────────────────────────────────────────
+DIST_DIR="$PROJECT_ROOT/dist/release"
+mkdir -p "$DIST_DIR"
+
+echo "→ Copying to dist/release/…"
+rm -rf "$DIST_DIR/GUI Video Clipper.app"
+cp -R "$APP_SRC" "$DIST_DIR/"
+
+# Copy DMG if it was built
+DMG_FILE=$(ls $DMG_GLOB 2>/dev/null | head -1 || true)
+if [ -n "$DMG_FILE" ]; then
+  cp "$DMG_FILE" "$DIST_DIR/"
+  echo "  ✓ DMG: $(basename "$DMG_FILE")"
+fi
+
+# ── Summary ────────────────────────────────────────────────────────
+APP_SIZE=$(du -sh "$DIST_DIR/GUI Video Clipper.app" | cut -f1)
+echo ""
+echo "=== Build Complete ==="
+echo "  Version:  v$VERSION"
+echo "  App:      dist/release/GUI Video Clipper.app ($APP_SIZE)"
+if [ -n "$DMG_FILE" ]; then
+  DMG_SIZE=$(du -sh "$DIST_DIR/$(basename "$DMG_FILE")" | cut -f1)
+  echo "  DMG:      dist/release/$(basename "$DMG_FILE") ($DMG_SIZE)"
+fi
+echo ""
+echo "To run: open \"dist/release/GUI Video Clipper.app\""
+```
+
+Make it executable:
+```bash
+chmod +x scripts/build-release.sh
+```
+
+- [ ] **Step 5: Update README with Release Build section**
+
+Add a new section after "## Build & Run" in `README.md`:
+
+```markdown
+## Release Build
+
+```bash
+npm run release
+```
+
+This runs the full Tauri production build, ad-hoc code signs the `.app` bundle, and copies the output to `dist/release/`.
+
+The resulting `GUI Video Clipper.app` can be launched directly or dragged to `/Applications`.
+```
+
+- [ ] **Step 6: Verify the release build**
+
+Run:
+```bash
+npm run release
+```
+
+Expected:
+- Script prints version, build progress, and summary
+- `dist/release/GUI Video Clipper.app` exists
+- App launches: `open "dist/release/GUI Video Clipper.app"`
+
+- [ ] **Step 7: Commit**
+
+```bash
+git add scripts/build-release.sh \
+        src-tauri/tauri.conf.json \
+        .gitignore \
+        package.json \
+        README.md
+git commit -m "feat: add release build script
+
+- scripts/build-release.sh: builds, signs, and copies .app to dist/release/
+- Bundle targets narrowed to app + dmg
+- npm run release convenience script
+- README documents the release build workflow"
+```
+
+---
+
+## Final Verification
+
+After all tasks, run the full check suite:
+
+```bash
+npm run check       # 0 errors, 0 warnings
+npm test            # 31/31 pass
+cd src-tauri && cargo build 2>&1 | grep "warning:"  # no output
+npm run release     # produces dist/release/GUI Video Clipper.app
+```
diff --git a/docs/superpowers/specs/2026-09-22-build-cleanup-release-packaging-design.md b/docs/superpowers/specs/2026-09-22-build-cleanup-release-packaging-design.md
new file mode 100644
index 0000000..2f5583c
--- /dev/null
+++ b/docs/superpowers/specs/2026-09-22-build-cleanup-release-packaging-design.md
@@ -0,0 +1,112 @@
+# Build Cleanup & Release Packaging
+
+**Date:** 2026-09-22
+**Status:** Approved
+
+## Overview
+
+Resolve all build warnings and errors across the frontend (svelte-check, Vite) and backend (cargo), fix the failing test, and implement a release build script that produces a distributable `GUI Video Clipper.app` bundle.
+
+## Scope
+
+Two workstreams:
+
+1. **Warning/Error Cleanup** — zero warnings from `npm run check`, `cargo build`, and `npm test`
+2. **Release Build Packaging** — `scripts/build-release.sh` that produces a signed `.app` in `dist/release/`
+
+## 1. TypeScript Errors (4)
+
+All in `vite.config.ts`:
+
+| Error | Root Cause | Fix |
+|-------|-----------|-----|
+| Cannot find `node:path` | Missing `@types/node` | `npm install -D @types/node`, add `"types": ["node"]` to `tsconfig.json` |
+| Cannot find `node:process` | Same | Same |
+| Cannot find `node:url` | Same | Same |
+| `test` not in `UserConfigExport` | `defineConfig` from `vite` doesn't know vitest's `test` field | Import `defineConfig` from `vitest/config` instead |
+
+## 2. Svelte A11y Warnings (19)
+
+### 2a. Labels not associated with controls (9 in CaptionSettingsPanel.svelte)
+
+Labels are siblings of their controls rather than wrapping them. Fix by either:
+- Wrapping the `<input>`/`<select>` inside the `<label>` element, or
+- Adding `id` to the control and `for` to the label
+
+Prefer the wrapping approach where layout allows.
+
+### 2b. Dialog divs missing tabindex (4 files)
+
+Add `tabindex="-1"` to `<div role="dialog">` in `PreferencesPanel`, `ExportDialog`, `AboutDialog`, and `<div role="listbox">` in `ClipList`. Makes them programmatically focusable without entering the tab order.
+
+### 2c. Click handlers without key handlers (4 files)
+
+Dialog overlay `onclick={onClose}` divs need corresponding `onkeydown` handlers. Add Escape key handling on the overlay. For `ClipList`'s listbox container, add an `onkeydown` handler mirroring the container click logic.
+
+### 2d. `<video>` without `<track>` (1 in VideoPlayer.svelte)
+
+Add an empty `<track kind="captions" default />` to the `<video>` element. Our custom caption overlay handles actual rendering.
+
+### 2e. Resize handle (1 in App.svelte)
+
+The resize handle `<div>` with `role="separator"` and `onmousedown` needs:
+- `tabindex="0"` for keyboard focusability
+- `onkeydown` handler for arrow key resizing
+- `aria-valuenow`, `aria-valuemin`, `aria-valuemax` attributes
+
+## 3. Rust Dead Code Warnings (6)
+
+Add `#[allow(dead_code)]` with explanatory comments:
+
+| Warning | Location | Annotation Rationale |
+|---------|----------|---------------------|
+| `ExportEvent::Error` unused | `commands/export.rs:23` | Reserved for future error-channel reporting |
+| `DownloadEvent::Error` unused | `commands/video.rs:23` | Reserved for future error-channel reporting |
+| `sanitize_vtt_for_ffmpeg` unused | `clip_exporter.rs:10` | Scaffolded for caption burn-in pipeline |
+| `opacity_to_ass_back_colour` unused | `clip_exporter.rs:204` | Scaffolded for caption burn-in pipeline |
+| `caption_style_to_force_style` unused | `clip_exporter.rs:210` | Scaffolded for caption burn-in pipeline |
+| `SubtitleFormat.ext`/`.url` unread | `video_resolver.rs:8-9` | Fields required for serde deserialization |
+
+## 4. Test Fix
+
+**File:** `tests/lib/stores/clips.test.ts`
+**Test:** "updates selected clip start when I is pressed"
+
+The test calls `markInPoint(5)` on a clip spanning 10–20. With `EDIT_TOLERANCE` of 0.5s, time 5 is outside the clip boundary (needs ≥ 9.5). The test was written before the tolerance check existed.
+
+**Fix:** Change `markInPoint(5)` to `markInPoint(12)` (inside the clip, within tolerance). Update the assertion to `expect(getClips()[0].startTime).toBe(12)`. This verifies the edit actually changes the start time (unlike `markInPoint(10)` which would pass trivially since start is already 10).
+
+After fix: 31/31 tests pass.
+
+## 5. Release Build Script
+
+### 5a. `scripts/build-release.sh`
+
+A shell script that:
+
+1. Reads `VERSION` from the project root
+2. Runs `npm install`
+3. Runs `npx tauri build` (builds frontend + Rust + bundles .app and .dmg)
+4. Ad-hoc code signs the `.app`: `codesign --force --deep -s - <path>`
+5. Copies `.app` (and `.dmg` if built) to `dist/release/`
+6. Prints summary: version, output path, bundle size
+
+### 5b. Configuration changes
+
+- `tauri.conf.json`: Change `"targets": "all"` to `"targets": ["app", "dmg"]`
+- `.gitignore`: Add `dist/`
+- `package.json`: Add `"release": "bash scripts/build-release.sh"`
+
+### 5c. README update
+
+Add a "Release Build" section documenting `npm run release` and its outputs.
+
+## Verification
+
+After all changes:
+
+- `npm run check` exits 0 with 0 errors, 0 warnings
+- `cargo build 2>&1 | grep warning` returns nothing
+- `npm test` shows 31/31 pass
+- `npm run release` produces `dist/release/GUI Video Clipper.app`
+- The `.app` launches without the Gatekeeper right-click workaround
diff --git a/package.json b/package.json
index e02b6cd..738b1cf 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "gui-video-clipper",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "description": "macOS GUI video clipper (Tauri + Svelte)",
   "type": "module",
   "scripts": {
diff --git a/src-tauri/Cargo.lock b/src-tauri/Cargo.lock
index 0d36db7..d7f3546 100644
--- a/src-tauri/Cargo.lock
+++ b/src-tauri/Cargo.lock
@@ -1281,7 +1281,7 @@ dependencies = [
 
 [[package]]
 name = "gui-video-clipper"
-version = "0.1.0"
+version = "0.1.1"
 dependencies = [
  "axum",
  "dirs",
diff --git a/src-tauri/Cargo.toml b/src-tauri/Cargo.toml
index b3856f1..b33a028 100644
--- a/src-tauri/Cargo.toml
+++ b/src-tauri/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "gui-video-clipper"
-version = "0.1.0"
+version = "0.1.1"
 description = "A macOS GUI app for clipping online videos"
 authors = ["cottongin"]
 edition = "2021"
diff --git a/src-tauri/src/lib.rs b/src-tauri/src/lib.rs
index 2c9e6ec..135813e 100644
--- a/src-tauri/src/lib.rs
+++ b/src-tauri/src/lib.rs
@@ -2,11 +2,89 @@ mod commands;
 mod models;
 mod services;
 
+use std::collections::HashSet;
+use std::path::PathBuf;
+
 use commands::{dependencies, export, media_analysis, video};
 use tauri::Manager;
 
 struct MediaServerPort(u16);
 
+/// Prepend well-known macOS tool directories to PATH so that Homebrew-installed
+/// binaries (ffmpeg, yt-dlp, etc.) are discoverable when the app is launched as
+/// a standalone .app bundle (which inherits only a minimal system PATH).
+///
+/// Also sets PYENV_ROOT when pyenv is present so that pyenv shims can resolve
+/// to the correct Python (and its pip-installed yt-dlp plugins).
+fn fix_path_env() {
+    let home = std::env::var("HOME").unwrap_or_default();
+
+    let mut extra_dirs: Vec<PathBuf> = Vec::new();
+
+    if !home.is_empty() {
+        let home_path = PathBuf::from(&home);
+
+        // pyenv shims — must come before /opt/homebrew/bin so the pyenv-managed
+        // yt-dlp (which knows about pip-installed plugins) wins over Homebrew's.
+        let pyenv_root = home_path.join(".pyenv");
+        if pyenv_root.is_dir() {
+            extra_dirs.push(pyenv_root.join("shims"));
+            if std::env::var("PYENV_ROOT").is_err() {
+                std::env::set_var("PYENV_ROOT", &pyenv_root);
+            }
+        }
+
+        // nvm — node/deno installed via nvm live under a versioned directory
+        let nvm_dir = home_path.join(".nvm/versions/node");
+        if nvm_dir.is_dir() {
+            if let Ok(entries) = std::fs::read_dir(&nvm_dir) {
+                // Pick the lexicographically last (highest) version
+                let mut versions: Vec<PathBuf> = entries
+                    .filter_map(|e| e.ok())
+                    .map(|e| e.path().join("bin"))
+                    .filter(|p| p.is_dir())
+                    .collect();
+                versions.sort();
+                if let Some(latest) = versions.pop() {
+                    extra_dirs.push(latest);
+                }
+            }
+        }
+
+        // User-local installs
+        for rel in [".local/bin", ".cargo/bin", ".deno/bin"] {
+            extra_dirs.push(home_path.join(rel));
+        }
+    }
+
+    // System-wide Homebrew / MacPorts paths
+    for dir in [
+        "/opt/homebrew/bin",
+        "/opt/homebrew/sbin",
+        "/usr/local/bin",
+        "/usr/local/sbin",
+    ] {
+        extra_dirs.push(PathBuf::from(dir));
+    }
+
+    // Filter to directories that actually exist
+    let extra_dirs: Vec<PathBuf> = extra_dirs.into_iter().filter(|p| p.is_dir()).collect();
+
+    let current = std::env::var("PATH").unwrap_or_default();
+    let current_dirs: HashSet<&str> = current.split(':').collect();
+
+    let mut new_path = String::new();
+    for dir in &extra_dirs {
+        let s = dir.to_string_lossy();
+        if !current_dirs.contains(s.as_ref()) {
+            new_path.push_str(&s);
+            new_path.push(':');
+        }
+    }
+    new_path.push_str(&current);
+    std::env::set_var("PATH", &new_path);
+}
+
 #[tauri::command]
 fn get_media_server_port(state: tauri::State<'_, MediaServerPort>) -> u16 {
     state.0
@@ -20,6 +98,8 @@ pub fn run() {
         .plugin(tauri_plugin_store::Builder::new().build())
         .plugin(tauri_plugin_process::init())
         .setup(|app| {
+            fix_path_env();
+
             // Bind synchronously (no async needed), then spawn on Tauri's runtime
             let (port, listener) = services::media_server::bind_media_server()
                 .expect("Failed to bind media server");
diff --git a/src-tauri/src/services/dependency_manager.rs b/src-tauri/src/services/dependency_manager.rs
index 1061ca1..b05be51 100644
--- a/src-tauri/src/services/dependency_manager.rs
+++ b/src-tauri/src/services/dependency_manager.rs
@@ -54,17 +54,11 @@ pub fn check_js_runtime() -> Option<String> {
     check_tool_exists("deno").or_else(|| check_tool_exists("node"))
 }
 
-pub fn check_pot_plugin(cookie_source: &CookieSource) -> bool {
-    let mut command = Command::new("yt-dlp");
-    command
-        .arg("-v")
-        .arg("--simulate")
-        .arg("--remote-components")
-        .arg("ejs:github")
-        .args(cookie_source.to_ytdlp_args())
-        .arg("https://www.youtube.com/watch?v=dQw4w9WgXcQ");
-    let output = command.output();
-
+pub fn check_pot_plugin(_cookie_source: &CookieSource) -> bool {
+    // Use `yt-dlp -v` (no URL) which lists loaded plugins without network access.
+    // The old approach ran a full YouTube simulation (~9s, network-dependent) which
+    // failed silently in the .app bundle context.
+    let output = Command::new("yt-dlp").arg("-v").output();
     match output {
         Ok(out) => {
             let stderr = String::from_utf8_lossy(&out.stderr);
diff --git a/src-tauri/tauri.conf.json b/src-tauri/tauri.conf.json
index 0ec2f62..13408c4 100644
--- a/src-tauri/tauri.conf.json
+++ b/src-tauri/tauri.conf.json
@@ -1,7 +1,7 @@
 {
   "$schema": "https://schema.tauri.app/config/2",
   "productName": "GUI Video Clipper",
-  "version": "0.1.0",
+  "version": "0.1.1",
   "identifier": "xyz.cottongin.gui-video-clipper",
   "build": {
     "beforeDevCommand": "npm run dev",
@@ -34,7 +34,10 @@
   },
   "bundle": {
     "active": true,
-    "targets": ["app", "dmg"],
+    "targets": [
+      "app",
+      "dmg"
+    ],
     "icon": [
       "icons/32x32.png",
       "icons/128x128.png",