Release pipeline: signed macOS/Windows, Linux packages, FreeBSD, Web; app icon

- .github/workflows/release.yml: every push to `release` builds a draft GitHub Release: macOS universal DMG (Developer ID + notarization), Windows x64/x86/arm64 MSI + zips (Azure Trusted Signing), Linux x86_64/aarch64 AppImage/deb/rpm/tar.gz + Flatpak manifest, FreeBSD, Web/WASM zip; SHA256SUMS; secrets only via the release environment - packaging/ for every platform; .scraft + audio file associations - cargo xtask version [set X.Y.Z] and xtask ico - apps/soundcraft-web (trunk, WebGPU/WebGL2, WebAudio) - placeholder app icon (original nightingale), window icon, Windows resources - ROADMAP.md Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-14 14:26:46 -04:00 · 2026-10-05 23:17:59 -04:00
1 parent a28e15210c
commit 04d222069d
@@ -0,0 +1,50 @@
+# Builds and tests the workspace on FreeBSD, inside a FreeBSD VM on a Linux runner
+# (GitHub has no FreeBSD runners). GPU tests skip themselves when the VM has no adapter, and the
+# player falls back to its silent clock when the VM has no sound device.
+name: FreeBSD
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    paths:
+      - Cargo.toml
+      - Cargo.lock
+      - "**/Cargo.toml"
+      - "crates/playback/**"
+      - .github/workflows/freebsd.yml
+  workflow_dispatch:
+
+concurrency:
+  group: freebsd-${{ github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+
+jobs:
+  freebsd:
+    name: FreeBSD 14 (build + test)
+    runs-on: ubuntu-latest
+    timeout-minutes: 300
+    steps:
+      - uses: actions/checkout@v4
+      - name: Build and test in a FreeBSD VM
+        uses: vmactions/freebsd-vm@c46abacb49f09938ca4e1702d15d836285d694cc # v1
+        with:
+          release: "14.3"
+          usesh: true
+          cpu: 4
+          mem: 12288
+          # Nothing to bring back; copying the target dir out of the VM fails on large builds.
+          copyback: false
+          prepare: |
+            pkg install -y git curl pkgconf cmake python3 libxkbcommon wayland libX11 libXcursor libXrandr libXi libxcb mesa-libs vulkan-loader gtk3 fontconfig freetype2 alsa-lib
+            curl -fsSL https://sh.rustup.rs | sh -s -- -y --profile minimal
+          run: |
+            . "$HOME/.cargo/env"
+            # The checkout is synced in under another owner; let tests that call git read it.
+            git config --global --add safe.directory "*"
+            rustc --version
+            CARGO_PROFILE_DEV_DEBUG=0 cargo build --workspace --all-targets --locked
+            CARGO_PROFILE_DEV_DEBUG=0 cargo test --workspace --locked
@@ -0,0 +1,57 @@
+# Quick static checks for the release pipeline (seconds, no Rust build): workflow syntax,
+# packaging shell/PowerShell scripts, and the Linux desktop/AppStream/Flatpak metadata.
+name: Packaging lint
+
+on:
+  push:
+    branches: [main, release]
+    paths: [".github/workflows/**", "packaging/**", "assets/app-icon/**"]
+  pull_request:
+    paths: [".github/workflows/**", "packaging/**", "assets/app-icon/**"]
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+concurrency:
+  group: packaging-lint-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    env:
+      ACTIONLINT_VERSION: 1.7.12
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install tools
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y --no-install-recommends shellcheck desktop-file-utils appstream libxml2-utils python3-yaml
+          curl -fsSL "https://github.com/rhysd/actionlint/releases/download/v${ACTIONLINT_VERSION}/actionlint_${ACTIONLINT_VERSION}_linux_amd64.tar.gz" \
+            | tar -xz -C "$RUNNER_TEMP" actionlint
+      - name: actionlint
+        run: |
+          "$RUNNER_TEMP/actionlint" -color
+      - name: shellcheck
+        run: shellcheck packaging/*.sh packaging/*/*.sh
+      - name: PowerShell
+        shell: pwsh
+        run: |
+          foreach ($f in Get-ChildItem packaging/windows/*.ps1) {
+            $errors = $null
+            [System.Management.Automation.Language.Parser]::ParseFile($f.FullName, [ref]$null, [ref]$errors) | Out-Null
+            if ($errors) { $errors | ForEach-Object { Write-Output "::error file=$($f.Name)::$_" }; exit 1 }
+            Write-Output "ok $($f.Name)"
+          }
+      - name: XML, desktop entry, AppStream, Flatpak manifest
+        run: |
+          xmllint --noout packaging/windows/soundcraft.wxs packaging/macos/*.plist* packaging/linux/*.xml*
+          # Windows Installer needs Icon ids ending in .ico or .exe, or shortcuts show a blank icon.
+          if grep -oE '<Icon Id="[^"]*"' packaging/windows/soundcraft.wxs | grep -vE '\.(ico|exe)"$'; then
+            echo "::error::Icon Id must end in .ico or .exe"; exit 1
+          fi
+          desktop-file-validate packaging/linux/ai.storyteller.soundcraft.desktop
+          sed -e 's/@VERSION@/0.0.0/' -e 's/@DATE@/2026-01-01/' packaging/linux/ai.storyteller.soundcraft.metainfo.xml.in >"$RUNNER_TEMP/ai.storyteller.soundcraft.metainfo.xml"
+          appstreamcli validate --no-net --explain "$RUNNER_TEMP/ai.storyteller.soundcraft.metainfo.xml"
+          python3 -c "import yaml; m = yaml.safe_load(open('packaging/linux/flatpak/ai.storyteller.soundcraft.yml')); assert m['id'] == 'ai.storyteller.soundcraft' and m['command'] == 'soundcraft'"
@@ -0,0 +1,333 @@
+# Release pipeline: every push to `release` builds signed installers for every platform and
+# creates or updates the draft GitHub Release "SoundCraft v<version>". See docs/releasing.md.
+#
+# All jobs run in the `release` environment (restricted to the `release` branch), which holds
+# the signing secrets. Every secret is optional: missing ones produce unsigned artifacts and a
+# warning, never a failed build.
+name: Release
+
+on:
+  push:
+    branches: [release]
+  workflow_dispatch:
+    inputs:
+      version:
+        description: "Version override for a test run, e.g. 0.2.0-rc.1 (empty: Cargo.toml)"
+        type: string
+        default: ""
+
+permissions:
+  contents: read
+
+concurrency:
+  group: release-${{ github.ref }}
+  # Never cancel a run mid-notarization or mid-upload; a newer push waits its turn.
+  cancel-in-progress: false
+
+env:
+  CARGO_TERM_COLOR: always
+  CARGO_INCREMENTAL: 0
+  RUST_BACKTRACE: 1
+  SOUNDCRAFT_BUILD_SHA: ${{ github.sha }}
+  INPUT_VERSION: ${{ inputs.version }}
+
+jobs:
+  version:
+    name: version
+    runs-on: ubuntu-latest
+    environment: release
+    outputs:
+      version: ${{ steps.v.outputs.version }}
+      date: ${{ steps.v.outputs.date }}
+      prerelease: ${{ steps.v.outputs.prerelease }}
+    steps:
+      - uses: actions/checkout@v4
+      - id: v
+        name: Resolve version
+        run: |
+          . packaging/env.sh
+          v="${INPUT_VERSION#v}"
+          v="${v:-$VERSION}"
+          if ! printf '%s' "$v" | grep -Eq '^(0|[1-9][0-9]*)\.(0|[1-9][0-9]*)\.(0|[1-9][0-9]*)(-[0-9A-Za-z-]+(\.[0-9A-Za-z-]+)*)?$'; then
+            echo "::error::'$v' is not a version like 1.2.3 or 1.2.3-rc.1"
+            exit 1
+          fi
+          case "$v" in *-*) pre=true ;; *) pre=false ;; esac
+          {
+            echo "version=$v"
+            echo "date=$(date -u +%Y-%m-%d)"
+            echo "prerelease=$pre"
+          } >>"$GITHUB_OUTPUT"
+          echo "### SoundCraft v$v (\`${GITHUB_SHA::9}\`)" >>"$GITHUB_STEP_SUMMARY"
+
+  macos:
+    name: macOS universal
+    needs: version
+    runs-on: macos-15
+    environment: release
+    env:
+      SOUNDCRAFT_VERSION: ${{ needs.version.outputs.version }}
+      SOUNDCRAFT_BUILD_DATE: ${{ needs.version.outputs.date }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: aarch64-apple-darwin, x86_64-apple-darwin
+      - uses: Swatinem/rust-cache@v2
+        with:
+          key: release-macos-universal
+      - name: Apply version override
+        if: inputs.version != ''
+        run: cargo xtask version set "$SOUNDCRAFT_VERSION"
+      - name: Import signing certificate
+        env:
+          APPLE_CERTIFICATE: ${{ secrets.APPLE_CERTIFICATE }}
+          APPLE_CERTIFICATE_PASSWORD: ${{ secrets.APPLE_CERTIFICATE_PASSWORD }}
+          KEYCHAIN_PASSWORD: ${{ secrets.KEYCHAIN_PASSWORD }}
+        run: packaging/macos/import-cert.sh
+      - name: Build, sign, notarize
+        env:
+          APPLE_ID: ${{ secrets.APPLE_ID }}
+          APPLE_PASSWORD: ${{ secrets.APPLE_PASSWORD }}
+          APPLE_TEAM_ID: ${{ secrets.APPLE_TEAM_ID }}
+        run: packaging/macos/package.sh --arch universal
+      - uses: actions/upload-artifact@v4
+        with:
+          name: release-macos
+          path: dist/release/*
+          if-no-files-found: error
+      - name: Remove temporary keychain
+        if: always()
+        run: |
+          if [ -n "${MACOS_KEYCHAIN:-}" ]; then security delete-keychain "$MACOS_KEYCHAIN" || true; fi
+
+  windows:
+    name: Windows ${{ matrix.arch }}
+    needs: version
+    runs-on: windows-latest
+    environment: release
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - { arch: x64, target: x86_64-pc-windows-msvc }
+          - { arch: x86, target: i686-pc-windows-msvc }
+          # Windows on ARM: cross-compiled on the x64 runner, so signing and WiX run as above.
+          # .github/workflows/windows-arm64.yml installs and runs it on ARM64 hardware.
+          - { arch: arm64, target: aarch64-pc-windows-msvc }
+    env:
+      SOUNDCRAFT_VERSION: ${{ needs.version.outputs.version }}
+      SOUNDCRAFT_BUILD_DATE: ${{ needs.version.outputs.date }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: ${{ matrix.target }}
+      - uses: Swatinem/rust-cache@v2
+        with:
+          key: release-windows-${{ matrix.arch }}
+      - name: Apply version override
+        if: inputs.version != ''
+        shell: bash
+        run: cargo xtask version set "$SOUNDCRAFT_VERSION"
+      - name: Install WiX
+        shell: pwsh
+        run: dotnet tool install --global wix --version 5.0.2
+      - name: Build, sign, package
+        shell: pwsh
+        env:
+          WINDOWS_CERTIFICATE: ${{ secrets.WINDOWS_CERTIFICATE }}
+          WINDOWS_CERTIFICATE_PASSWORD: ${{ secrets.WINDOWS_CERTIFICATE_PASSWORD }}
+          AZURE_TENANT_ID: ${{ secrets.AZURE_TENANT_ID }}
+          AZURE_CLIENT_ID: ${{ secrets.AZURE_CLIENT_ID }}
+          AZURE_CLIENT_SECRET: ${{ secrets.AZURE_CLIENT_SECRET }}
+          AZURE_SIGNING_ENDPOINT: ${{ secrets.AZURE_SIGNING_ENDPOINT }}
+          AZURE_SIGNING_ACCOUNT: ${{ secrets.AZURE_SIGNING_ACCOUNT }}
+          AZURE_CERT_PROFILE: ${{ secrets.AZURE_CERT_PROFILE }}
+        run: ./packaging/windows/package.ps1 -Arch ${{ matrix.arch }}
+      - uses: actions/upload-artifact@v4
+        with:
+          name: release-windows-${{ matrix.arch }}
+          path: dist/release/*
+          if-no-files-found: error
+
+  linux:
+    name: Linux ${{ matrix.arch }}
+    needs: version
+    # The oldest GitHub-hosted image, so the binaries only need glibc >= 2.35 (Ubuntu 22.04+,
+    # Debian 12+, Fedora 36+, RHEL 10). See docs/releasing.md.
+    runs-on: ${{ matrix.runner }}
+    environment: release
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - { arch: x86_64, runner: ubuntu-22.04, deb: amd64 }
+          - { arch: aarch64, runner: ubuntu-22.04-arm, deb: arm64 }
+    env:
+      SOUNDCRAFT_VERSION: ${{ needs.version.outputs.version }}
+      SOUNDCRAFT_BUILD_DATE: ${{ needs.version.outputs.date }}
+      NFPM_VERSION: 2.47.0
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install build and packaging tools
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y --no-install-recommends \
+            libxkbcommon-dev libwayland-dev libx11-dev libxrandr-dev libxi-dev libgl1-mesa-dev \
+            libasound2-dev pkg-config \
+            desktop-file-utils appstream python3-yaml
+          curl -fsSL -o "$RUNNER_TEMP/nfpm.deb" \
+            "https://github.com/goreleaser/nfpm/releases/download/v${NFPM_VERSION}/nfpm_${NFPM_VERSION}_${{ matrix.deb }}.deb"
+          sudo dpkg -i "$RUNNER_TEMP/nfpm.deb"
+      - uses: dtolnay/rust-toolchain@stable
+      - uses: Swatinem/rust-cache@v2
+        with:
+          key: release-linux-${{ matrix.arch }}
+      - name: Apply version override
+        if: inputs.version != ''
+        run: cargo xtask version set "$SOUNDCRAFT_VERSION"
+      - name: Build and package (AppImage, deb, rpm, tar.gz)
+        run: packaging/linux/package.sh
+      - name: Check the packages
+        run: |
+          dpkg-deb --info dist/release/*.deb
+          dpkg-deb --contents dist/release/*.deb | grep -E 'usr/bin/soundcraft$|metainfo|applications'
+          ldd target/release/soundcraft
+          # cpal's ALSA backend: the one audio library linked at build time (see nfpm.yaml).
+          ldd target/release/soundcraft | grep -q libasound
+          python3 -c "import yaml; m = yaml.safe_load(open('packaging/linux/flatpak/ai.storyteller.soundcraft.yml')); assert m['id'] == 'ai.storyteller.soundcraft'"
+          for appimage in dist/release/*.AppImage; do
+            chmod +x "$appimage"
+            APPIMAGE_EXTRACT_AND_RUN=1 "$appimage" --version
+          done
+      - uses: actions/upload-artifact@v4
+        with:
+          name: release-linux-${{ matrix.arch }}
+          path: dist/release/*
+          if-no-files-found: error
+
+  freebsd:
+    name: FreeBSD x86_64
+    needs: version
+    # GitHub has no FreeBSD runners: build in a FreeBSD 14.3 VM (same image as freebsd.yml).
+    runs-on: ubuntu-latest
+    timeout-minutes: 150
+    environment: release
+    env:
+      SOUNDCRAFT_VERSION: ${{ needs.version.outputs.version }}
+      SOUNDCRAFT_BUILD_DATE: ${{ needs.version.outputs.date }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+        if: inputs.version != ''
+      - name: Apply version override
+        if: inputs.version != ''
+        run: cargo xtask version set "$SOUNDCRAFT_VERSION"
+      - name: Build and package in a FreeBSD VM
+        # v1.5.9, pinned by commit.
+        uses: vmactions/freebsd-vm@c46abacb49f09938ca4e1702d15d836285d694cc
+        with:
+          release: "14.3"
+          usesh: true
+          mem: 12288
+          # Passed through by name; never templated into the script.
+          envs: "SOUNDCRAFT_VERSION SOUNDCRAFT_BUILD_DATE SOUNDCRAFT_BUILD_SHA"
+          # alsa-lib: cpal's audio backend on FreeBSD (ALSA over OSS via alsa-plugins-oss at runtime).
+          prepare: |
+            pkg install -y bash curl git pkgconf cmake python3 libxkbcommon wayland libX11 libXcursor libXrandr libXi libxcb mesa-libs vulkan-loader gtk3 fontconfig freetype2 alsa-lib
+            curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --profile minimal --default-toolchain stable
+          run: |
+            . "$HOME/.cargo/env"
+            git config --global --add safe.directory "$PWD"
+            # Build outside the checkout so only dist/ is copied back out of the VM.
+            export CARGO_TARGET_DIR=/var/tmp/soundcraft-target CARGO_BUILD_JOBS=4
+            bash packaging/freebsd/package.sh
+      - uses: actions/upload-artifact@v4
+        with:
+          name: release-freebsd
+          path: dist/release/*
+          if-no-files-found: error
+
+  web:
+    name: Web (wasm)
+    needs: version
+    runs-on: ubuntu-latest
+    environment: release
+    env:
+      SOUNDCRAFT_VERSION: ${{ needs.version.outputs.version }}
+      SOUNDCRAFT_BUILD_DATE: ${{ needs.version.outputs.date }}
+      TRUNK_VERSION: 0.21.14
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: wasm32-unknown-unknown
+      - uses: Swatinem/rust-cache@v2
+        with:
+          key: release-web
+      - name: Install trunk
+        run: |
+          curl -fsSL "https://github.com/trunk-rs/trunk/releases/download/v${TRUNK_VERSION}/trunk-x86_64-unknown-linux-gnu.tar.gz" \
+            | tar -xz -C "$HOME/.cargo/bin" trunk
+          trunk --version
+      - name: Apply version override
+        if: inputs.version != ''
+        run: cargo xtask version set "$SOUNDCRAFT_VERSION"
+      - name: Build and zip
+        run: packaging/web/package.sh
+      - uses: actions/upload-artifact@v4
+        with:
+          name: release-web
+          path: dist/release/*
+          if-no-files-found: error
+
+  release:
+    name: Draft GitHub Release
+    needs: [version, macos, windows, linux, freebsd, web]
+    runs-on: ubuntu-latest
+    environment: release
+    permissions:
+      contents: write
+    env:
+      VERSION: ${{ needs.version.outputs.version }}
+      PRERELEASE: ${{ needs.version.outputs.prerelease }}
+      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      GH_REPO: ${{ github.repository }}
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          pattern: release-*
+          path: artifacts
+          merge-multiple: true
+      - name: Checksums
+        working-directory: artifacts
+        run: |
+          sha256sum -- * | tee SHA256SUMS.txt
+      - name: Create or update the draft release
+        working-directory: artifacts
+        run: |
+          tag="v$VERSION"
+          title="SoundCraft v$VERSION"
+          pre=()
+          if [ "$PRERELEASE" = true ]; then pre=(--prerelease); fi
+          if draft="$(gh release view "$tag" --json isDraft --jq .isDraft 2>/dev/null)"; then
+            if [ "$draft" != "true" ]; then
+              echo "::error::Release $tag is already published. Bump the version (cargo xtask version set) before pushing to release."
+              exit 1
+            fi
+            echo "Updating draft $tag: replacing its assets"
+            gh release view "$tag" --json assets --jq '.assets[].name' | while read -r asset; do
+              gh release delete-asset "$tag" "$asset" --yes
+            done
+            gh release edit "$tag" --draft --title "$title" --target "$GITHUB_SHA" --prerelease="$PRERELEASE"
+            gh release upload "$tag" --clobber -- *
+          else
+            echo "Creating draft $tag"
+            gh release create "$tag" --draft --title "$title" --target "$GITHUB_SHA" --generate-notes "${pre[@]}" -- *
+          fi
+          {
+            echo "Draft release **$title** at \`${GITHUB_SHA::9}\`:"
+            echo
+            sed 's/^/    /' SHA256SUMS.txt
+          } >>"$GITHUB_STEP_SUMMARY"
@@ -0,0 +1,95 @@
+# Windows on ARM: package the ARM64 release the way release.yml does (cross-compiled on an x64
+# runner, unsigned here), then install that MSI on a Windows 11 ARM64 runner, check the installed
+# binaries are ARM64, run the CLI natively, and uninstall. (A native ARM64 `cargo test` job is left
+# out for now: PrintCraft saw an intermittent access violation in egui UI tests there.)
+name: Windows ARM64
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    paths:
+      - Cargo.toml
+      - Cargo.lock
+      - "**/Cargo.toml"
+      - "**/build.rs"
+      - .github/workflows/windows-arm64.yml
+      - packaging/windows/**
+  schedule:
+    - cron: "41 4 * * 1" # weekly, so drift in the runner images shows up
+  workflow_dispatch:
+
+concurrency:
+  group: windows-arm64-${{ github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+
+env:
+  CARGO_TERM_COLOR: always
+  CARGO_INCREMENTAL: 0
+
+jobs:
+  package:
+    name: package (cross-compiled on x64)
+    runs-on: windows-latest
+    timeout-minutes: 90
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@89b12181fb390509a0842a86cc55eeb8eb928c1d # stable
+        with:
+          targets: aarch64-pc-windows-msvc
+      - uses: Swatinem/rust-cache@6323deb102c322ba6fcbdcafc7e3dddab59af2b6 # v2
+        with:
+          key: windows-arm64-package
+      - name: Install WiX
+        shell: pwsh
+        run: dotnet tool install --global wix --version 5.0.2
+      - name: Build and package (unsigned)
+        shell: pwsh
+        env:
+          DIST: ${{ github.workspace }}\dist\arm64
+        run: ./packaging/windows/package.ps1 -Arch arm64
+      - uses: actions/upload-artifact@v4
+        with:
+          name: soundcraft-windows-arm64
+          path: dist/arm64/*
+          if-no-files-found: error
+          retention-days: 7
+
+  install:
+    name: install and run on ARM64
+    needs: package
+    runs-on: windows-11-arm
+    timeout-minutes: 30
+    steps:
+      - uses: actions/download-artifact@v4
+        with:
+          name: soundcraft-windows-arm64
+          path: dist
+      - name: Install the MSI, check it, run it, uninstall it
+        shell: pwsh
+        run: |
+          $ErrorActionPreference = 'Stop'
+          $msi = (Get-ChildItem dist/*.msi | Select-Object -First 1).FullName
+          $p = Start-Process msiexec.exe -ArgumentList '/i', "`"$msi`"", '/qn', '/l*v', 'install.log' -Wait -PassThru
+          if ($p.ExitCode -ne 0) { Get-Content install.log -Tail 60; throw "msiexec /i exited $($p.ExitCode)" }
+          $dir = Join-Path $env:ProgramFiles 'SoundCraft'
+          foreach ($exe in 'soundcraft.exe', 'soundcraft-cli.exe') {
+            $path = Join-Path $dir $exe
+            if (-not (Test-Path $path)) { throw "$exe not installed in $dir" }
+            $bytes = [System.IO.File]::ReadAllBytes($path)
+            $machine = [BitConverter]::ToUInt16($bytes, [BitConverter]::ToInt32($bytes, 0x3C) + 4)
+            if ($machine -ne 0xAA64) { throw "$exe is for machine 0x$('{0:X}' -f $machine), not ARM64" }
+            Write-Output "ok $path (ARM64)"
+          }
+          # The installed CLI runs natively on ARM64.
+          $cli = Join-Path $dir 'soundcraft-cli.exe'
+          $out = & $cli --version 2>&1 | Out-String
+          if ($LASTEXITCODE -ne 0) { Write-Output $out; throw "soundcraft-cli --version exited $LASTEXITCODE" }
+          Write-Output "ok soundcraft-cli --version: $($out.Trim())"
+          $p = Start-Process msiexec.exe -ArgumentList '/x', "`"$msi`"", '/qn' -Wait -PassThru
+          if ($p.ExitCode -ne 0) { throw "msiexec /x exited $($p.ExitCode)" }
+          if (Test-Path (Join-Path $dir 'soundcraft.exe')) { throw 'uninstall left soundcraft.exe behind' }
+          Write-Output 'ok uninstalled'
@@ -9,8 +9,9 @@ Assets must be original, public domain (CC0) or permissively licensed. See `AGEN
 ## Icons

 All UI icons (tools, transport, track buttons) are drawn procedurally in
-`crates/ui-egui/src/icons.rs` by the SoundCraft contributors (MIT OR Apache-2.0). No icon image
-files are used.
+`crates/ui-egui/src/icons.rs` by the SoundCraft contributors (MIT OR Apache-2.0). No UI icon image
+files are used. The app icon (`assets/app-icon/`, a singing nightingale drawn as original SVG by
+the SoundCraft contributors) is listed under Files below.

 ## Audio

@@ -36,3 +37,9 @@ and, at runtime, the operating system's own UI fonts when available (never redis
 | `docs/brand/artcraft-mark.png` | ArtCraft Team | craftrules `assets/brand/` | ArtCraft brand terms |
 | `docs/brand/artcraft-mark-black.svg` | ArtCraft Team | craftrules `assets/brand/` | ArtCraft brand terms |
 | `docs/brand/artcraft-mark-black.png` | ArtCraft Team | craftrules `assets/brand/` | ArtCraft brand terms |
+| `assets/app-icon/icon.svg` | SoundCraft contributors | original (hand-placed SVG paths; placeholder app icon) | MIT OR Apache-2.0 |
+| `assets/app-icon/soundcraft-1024.png` | SoundCraft contributors | original, rendered from `icon.svg` | MIT OR Apache-2.0 |
+| `assets/app-icon/soundcraft-macos-512.png` | SoundCraft contributors | original, rendered from `icon.svg` | MIT OR Apache-2.0 |
+| `assets/app-icon/soundcraft.icns` | SoundCraft contributors | original, rendered from `icon.svg` | MIT OR Apache-2.0 |
+| `assets/app-icon/soundcraft.ico` | SoundCraft contributors | original, rendered from `icon.svg` | MIT OR Apache-2.0 |
+| `assets/app-icon/hicolor/` | SoundCraft contributors | original, rendered from `icon.svg` (16–512 px PNGs and the scalable SVG) | MIT OR Apache-2.0 |
@@ -3357,6 +3357,7 @@ dependencies = [
 "soundcraft-engine",
 "soundcraft-playback",
 "soundcraft-ui-egui",
+ "winresource",
 ]

 [[package]]
@@ -3435,6 +3436,7 @@ name = "soundcraft-mix"
 version = "0.1.0"
 dependencies = [
 "log",
+ "rayon",
 "soundcraft-audio-io",
 "soundcraft-dsp",
 "soundcraft-midi",
@@ -3868,10 +3870,12 @@ version = "1.1.6+spec-1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "920602543f0911ab71da12c50d59701da54c196d1a2bf5cb4b75667f137a406a"
 dependencies = [
+ "indexmap",
 "serde_core",
 "serde_spanned",
 "toml_datetime",
 "toml_parser",
+ "toml_writer",
 "winnow",
 ]

@@ -3905,6 +3909,12 @@ dependencies = [
 "winnow",
 ]

+[[package]]
+name = "toml_writer"
+version = "1.1.2+spec-1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7d56353a2a665ad0f41a421187180aab746c8c325620617ad883a99a1cbe66d2"
+
 [[package]]
 name = "tracing"
 version = "0.1.44"
@@ -4942,6 +4952,16 @@ dependencies = [
 "memchr",
 ]

+[[package]]
+name = "winresource"
+version = "0.1.31"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0986a8b1d586b7d3e4fe3d9ea39fb451ae22869dcea4aa109d287a374d866087"
+dependencies = [
+ "toml",
+ "version_check",
+]
+
 [[package]]
 name = "wit-bindgen"
 version = "0.57.1"
@@ -0,0 +1,53 @@
+# SoundCraft roadmap
+
+SoundCraft is a clean-room, pure-Rust digital audio workstation that aims at full parity with
+Avid Pro Tools, and then beyond it: faster, open, scriptable and agent-controllable. This file is
+the honest status: what works today, what is missing, and how far we are.
+
+## Where we are (2026-10-07)
+
+| Measure | Value | How |
+|---|---|---|
+| Menu-catalog parity (engine + UI) | see [`docs/parity.md`](docs/parity.md) | `cargo xtask parity` compares the incumbent's 512 menu leaves (names observed black-box) with our command registry |
+| Estimated overall feature parity | **~40 %** | judgement across the areas below, weighted by how much professional users rely on them |
+| Estimated remaining effort | **~220–300 wall-clock hours** of Claude Opus 5.5 work (single agent; roughly 70–100 hours with 3–4 agents in parallel) | sum of the per-area estimates below |
+
+### Area by area
+
+| Area | Status | Parity | Remaining (h) |
+|---|---|---:|---:|
+| Session model, save/load, undo | Done: tracks, playlists, clips, fades, clip gain, automation, markers, groups, busses; JSON `.scraft` + Audio Files folder; COW undo with gesture coalescing | 80 % | 10 |
+| Audio file I/O | WAV/BWF/RF64, AIFF/AIFC, FLAC (read/write); MP3, OGG, AAC, ALAC, CAF (read); peaks | 75 % | 10 |
+| Editing | Slip/Shuffle/Spot/Grid, cut/copy/paste/clear/duplicate/repeat/shift, separate/heal/trim/consolidate/strip silence, fades & crossfades, nudge, playlists, grabber/trim/selector/smart/pencil/zoom/scrubber gestures, edit groups | 60 % | 35 |
+| Mixer & routing | Faders, pan, mute/solo (SIP, implicit solo), sends pre/post, busses, aux inputs, master faders, VCAs, routing folders, 10 inserts, automation read | 60 % | 30 |
+| Automation | Breakpoint lanes for volume/pan/mute/sends/plugin params; modes stored; write/thin/glide/convert commands | 45 % | 25 |
+| Plugins (built-in) | 26 original processors + 2 instruments, AudioSuite offline processing | 45 % | 30 |
+| Third-party plugins (CLAP/VST3/AU) | Not started | 0 % | 40 |
+| MIDI | MIDI/instrument tracks, SMF import/export, MIDI editor (piano roll + velocity), event list, step input, quantize/transpose/velocity/duration ops | 40 % | 30 |
+| Recording | Audio input capture, punch into selection; loop record, QuickPunch, input monitoring with latency compensation missing | 30 % | 20 |
+| Elastic Audio / TCE / Beat Detective | Clip stretch ratio, offline time-stretch and pitch-shift, transient detection | 20 % | 25 |
+| Video, surround panning, Atmos | Formats modelled; no video track, no surround panner | 5 % | 40 |
+| UI fidelity | Edit + Mix windows, toolbar, rulers, track headers, menus for the whole catalog, floating windows, dialogs | 65 % | 25 |
+| Agent control | CLI, JSON control channel, MCP server (headless + bridged), offscreen UI renders | 90 % (ahead of the incumbent) | 5 |
+| Release engineering | Signed macOS universal, Windows x64/x86, Linux AppImage/deb/rpm/tar/Flatpak, FreeBSD, Web/WASM on every push to `release` | 80 % | 5 |
+
+## Current focus
+
+1. Land the engine parity batch (Edit/View/Track/Clip/Event/Options/Setup menu items).
+2. Automation write modes during playback (touch/latch/write from fader moves).
+3. Loop record and QuickPunch; input monitoring.
+4. Plugin hosting (CLAP first, it is MIT-licensed and Rust-friendly).
+5. Elastic Audio in realtime; Beat Detective workflow window.
+6. README screenshots and the first alpha release.
+
+## Milestones
+
+- **M0–M3 (done):** workspace, gates, model, IO, DSP, mix engine, command engine, Edit/Mix UI.
+- **M4 (done):** realtime playback, metering, plugins, bounce.
+- **M5 (in progress):** editing depth (tools, modes, playlists, fades) — most items landed.
+- **M6 (in progress):** recording.
+- **M7 (in progress):** MIDI editing.
+- **M8 (done for the first cut):** CLI, control channel, MCP, agent acceptance test.
+- **M9:** AudioSuite breadth, Elastic Audio, Beat Detective.
+- **M10:** alpha release on all platforms.
+- **M11:** third-party plugin hosting, video, surround.
@@ -21,3 +21,7 @@ log.workspace = true

 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
 rfd.workspace = true
+
+[build-dependencies]
+# Icon + VERSIONINFO for soundcraft.exe; build.rs only uses it when the target is Windows.
+winresource = "0.1"
@@ -0,0 +1,30 @@
+//! Windows only: embed the app icon and version info (VERSIONINFO) into `soundcraft.exe`, so it
+//! shows in Explorer, the taskbar, the Start menu and Alt-Tab.
+//!
+//! On every other target this does nothing. A missing resource compiler is a warning, so a
+//! cross-compile from macOS or Linux still links, unless `SOUNDCRAFT_REQUIRE_WINRES=1` turns it
+//! into an error (for release builds).
+
+fn main() {
+    println!("cargo:rerun-if-changed=build.rs");
+    println!("cargo:rerun-if-changed=../../assets/app-icon/soundcraft.ico");
+    println!("cargo:rerun-if-env-changed=SOUNDCRAFT_REQUIRE_WINRES");
+    if std::env::var("CARGO_CFG_TARGET_OS").as_deref() != Ok("windows") {
+        return;
+    }
+    let mut res = winresource::WindowsResource::new();
+    res.set_icon("../../assets/app-icon/soundcraft.ico")
+        .set("ProductName", "SoundCraft")
+        .set("FileDescription", "SoundCraft digital audio workstation")
+        .set("CompanyName", "Learning Machines LLC")
+        .set("LegalCopyright", "Copyright (c) the SoundCraft authors. MIT OR Apache-2.0.")
+        .set("OriginalFilename", "soundcraft.exe")
+        .set("InternalName", "soundcraft");
+    if let Err(e) = res.compile() {
+        if std::env::var_os("SOUNDCRAFT_REQUIRE_WINRES").is_some() {
+            eprintln!("embedding Windows resources failed: {e}");
+            std::process::exit(1);
+        }
+        println!("cargo:warning=soundcraft.exe built without icon/version resources: {e}");
+    }
+}
@@ -121,6 +121,16 @@ fn services() -> Services {
    }
 }

+/// The window, Dock, taskbar and Alt-Tab icon. macOS gets Apple's icon grid (transparent margin);
+/// elsewhere the full tile. Regenerate with `packaging/icons.sh`.
+fn app_icon() -> Option<egui::IconData> {
+    #[cfg(target_os = "macos")]
+    let png: &[u8] = include_bytes!("../../../assets/app-icon/soundcraft-macos-512.png");
+    #[cfg(not(target_os = "macos"))]
+    let png: &[u8] = include_bytes!("../../../assets/app-icon/hicolor/256x256/apps/ai.storyteller.soundcraft.png");
+    eframe::icon_data::from_png_bytes(png).map_err(|e| log::warn!("app icon: {e}")).ok()
+}
+
 fn main() -> eframe::Result {
    let args: Vec<String> = std::env::args().skip(1).collect();
    if args.iter().any(|a| a == "--version" || a == "-V") {
@@ -146,7 +156,7 @@ fn main() -> eframe::Result {
        .collect();

    let engine = if demo { soundcraft_engine::demo::demo_engine() } else { Engine::default() };
-    let options = eframe::NativeOptions {
+    let mut options = eframe::NativeOptions {
        viewport: egui::ViewportBuilder::default()
            .with_title("SoundCraft")
            .with_inner_size([1600.0, 1000.0])
@@ -155,6 +165,9 @@ fn main() -> eframe::Result {
            .with_app_id("ai.storyteller.soundcraft"),
        ..Default::default()
    };
+    if let Some(icon) = app_icon() {
+        options.viewport = options.viewport.with_icon(icon);
+    }
    eframe::run_native(
        "SoundCraft",
        options,
@@ -0,0 +1,44 @@
+# SoundCraft app icon (placeholder)
+
+**A nightingale singing**, as an engraving-style head-and-shoulders portrait in the Crafting Apps'
+owl-template framing (craftrules `standards/icon-design.md`): a full-bleed colour field, the bird
+in three-quarter view with its bill open and its eye on the viewer, its breast and wing running off
+the bottom and right edges, three song arcs leaving the bill.
+
+This is a **placeholder** until the owner draws SoundCraft's icon in ArtCraft like the other apps'
+icons. Replace `icon.svg` and run `packaging/icons.sh`; nothing else needs to change.
+
+## Palette
+
+Exactly three colours:
+
+| Colour | Hex | Used for |
+|---|---|---|
+| Ink | `#0b0b0c` | Line work and contour |
+| Paper | `#efe9dc` | The bird and the song arcs |
+| SoundCraft teal (app colour) | `#14a9c4` | The full-bleed background field |
+
+## Geometry
+
+A 512 × 512 viewBox, clipped to a rounded square with `rx=112`. Windows and Linux use the full
+tile. The macOS icons (`soundcraft.icns`, `soundcraft-macos-512.png`) sit on Apple's grid: an
+824/1024 body with a transparent margin.
+
+## Provenance and licence
+
+Drawn from scratch as hand-placed SVG paths by the SoundCraft contributors; no source image was
+traced or copied. MIT OR Apache-2.0, like the code (see `ATTRIBUTION.md`).
+
+## Files
+
+| File | What it is |
+|---|---|
+| `icon.svg` | The canonical vector |
+| `soundcraft-1024.png` | 1024 px render |
+| `soundcraft-macos-512.png` | Runtime window/Dock icon on macOS (Apple grid margin) |
+| `soundcraft.icns` | macOS bundle icon |
+| `soundcraft.ico` | Windows icon (16–256 px), embedded in `soundcraft.exe` and used by the MSI |
+| `hicolor/<size>x<size>/apps/ai.storyteller.soundcraft.png` | Linux/FreeBSD icon theme, 16–512 px, plus `scalable/` |
+
+Regenerate everything with `packaging/icons.sh` (needs `resvg`, and `iconutil` on macOS for the
+`.icns`).
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><title>SoundCraft</title><defs><clipPath id="t"><rect width="512" height="512" rx="112"/></clipPath></defs><g clip-path="url(#t)"><rect width="512" height="512" fill="#14a9c4"/><path fill="#efe9dc" d="M79.8 175.5L80.3 172.9L80.5 170.6L80.7 168.3L80.9 166.1L81.1 164.0L81.3 162.0L81.4 160.0L81.5 158.0L81.5 156.0L81.5 154.0L81.4 152.0L81.3 150.0L81.1 148.0L80.9 145.9L80.7 143.7L80.5 141.4L80.3 139.1L79.8 136.5L79.8 136.5L77.7 138.2L76.1 140.1L74.6 142.1L73.4 144.2L72.4 146.5L71.6 148.8L71.0 151.2L70.6 153.6L70.5 156.0L70.6 158.4L71.0 160.8L71.6 163.2L72.4 165.5L73.4 167.8L74.6 169.9L76.1 171.9L77.7 173.8L79.8 175.5Z"/><path fill="#efe9dc" d="M55.7 185.2L55.9 181.6L55.9 178.1L55.9 174.8L55.9 171.6L55.9 168.4L55.9 165.2L56.0 162.1L56.0 159.1L56.0 156.0L56.0 152.9L56.0 149.9L55.9 146.8L55.9 143.6L55.9 140.4L55.9 137.2L55.9 133.9L55.9 130.4L55.7 126.8L55.7 126.8L53.1 129.4L51.0 132.4L49.2 135.4L47.6 138.7L46.3 142.0L45.3 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@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><title>SoundCraft</title><defs><clipPath id="t"><rect width="512" height="512" rx="112"/></clipPath></defs><g clip-path="url(#t)"><rect width="512" height="512" fill="#14a9c4"/><path fill="#efe9dc" d="M79.8 175.5L80.3 172.9L80.5 170.6L80.7 168.3L80.9 166.1L81.1 164.0L81.3 162.0L81.4 160.0L81.5 158.0L81.5 156.0L81.5 154.0L81.4 152.0L81.3 150.0L81.1 148.0L80.9 145.9L80.7 143.7L80.5 141.4L80.3 139.1L79.8 136.5L79.8 136.5L77.7 138.2L76.1 140.1L74.6 142.1L73.4 144.2L72.4 146.5L71.6 148.8L71.0 151.2L70.6 153.6L70.5 156.0L70.6 158.4L71.0 160.8L71.6 163.2L72.4 165.5L73.4 167.8L74.6 169.9L76.1 171.9L77.7 173.8L79.8 175.5Z"/><path fill="#efe9dc" d="M55.7 185.2L55.9 181.6L55.9 178.1L55.9 174.8L55.9 171.6L55.9 168.4L55.9 165.2L56.0 162.1L56.0 159.1L56.0 156.0L56.0 152.9L56.0 149.9L55.9 146.8L55.9 143.6L55.9 140.4L55.9 137.2L55.9 133.9L55.9 130.4L55.7 126.8L55.7 126.8L53.1 129.4L51.0 132.4L49.2 135.4L47.6 138.7L46.3 142.0L45.3 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@@ -28,8 +28,9 @@ pub struct Recorder {
    pub channels: usize,
 }

-/// Cap: one hour of 8-channel 192 kHz audio.
-const MAX_SAMPLES: usize = 3600 * 192_000 * 8;
+/// Cap: one hour of 8-channel 192 kHz audio; 64 Mi samples (256 MB of f32) on 32-bit targets
+/// (wasm32, i686), where the 64-bit product doesn't fit in `usize`.
+const MAX_SAMPLES: usize = if usize::BITS >= 64 { (3600u64 * 192_000 * 8) as usize } else { 64 << 20 };

 impl Recorder {
    /// Open the default input device. Errors when there is none (the caller shows a message).
@@ -0,0 +1,9 @@
+# Release playbook
+
+The release playbook shared by every crafting app lives in craftrules:
+[`../craftrules/release/playbook.md`](../../craftrules/release/playbook.md)
+(`storytold/craftrules`). It is the canonical copy; don't duplicate it here.
+
+SoundCraft's implementation (`.github/workflows/release.yml`, `packaging/`,
+`cargo xtask version`) was copied from DesignCraft/PhotoCraft and renamed. SoundCraft-specific
+details are in [releasing.md](releasing.md).
@@ -0,0 +1,201 @@
+# Releasing SoundCraft
+
+Every push to the `release` branch runs `.github/workflows/release.yml`. The workflow builds
+signed installers for macOS, Windows, Linux, FreeBSD and the web, then creates or updates a
+**draft** GitHub Release named `SoundCraft v<version>`. Nobody sees a draft until a maintainer
+publishes it.
+
+This is SoundCraft's implementation of the shared [release playbook](release-playbook.md).
+User-facing names say **SoundCraft**. Files, binaries and ids stay lowercase
+(`soundcraft-<version>-<platform>-<arch>.<ext>`, `ai.storyteller.soundcraft`).
+
+## Cutting a release
+
+1. **Bump the version** on `main`. The only place it lives is `[workspace.package] version` in
+   the root `Cargo.toml`; the app reads it from `CARGO_PKG_VERSION` (*About SoundCraft*,
+   `soundcraft --version`, `soundcraft-cli --version`).
+
+   ```sh
+   cargo xtask version                 # prints the current version, e.g. 0.1.0
+   cargo xtask version set 0.2.0       # or 0.2.0-rc.1; updates Cargo.toml and Cargo.lock
+   ```
+
+   Commit the change (`Cargo.toml` + `Cargo.lock`) through the normal review flow.
+2. **Merge `main` into `release`** (or fast-forward it) and push. The workflow starts by itself.
+3. **Wait for the draft.** After about 30 to 60 minutes (notarization and the FreeBSD VM are the
+   slow parts), the Releases page has a draft `SoundCraft v0.2.0`, tagged `v0.2.0` on the pushed
+   commit, with every artifact and `SHA256SUMS.txt`. The notes are generated from the merged PRs.
+4. **Check it.** Download an installer or two and look at the job summaries. Any `::warning::`
+   there means a signing secret was missing and that artifact is unsigned.
+5. **Publish** the draft in the GitHub UI. Publishing creates the `v0.2.0` tag. Versions with a
+   pre-release suffix (`-rc.1`) are marked as pre-releases.
+
+Pushing to `release` again before you publish rebuilds the same draft and replaces its assets.
+After the draft is published, the workflow refuses to touch that version again, so bump it first.
+
+**Test runs:** *Actions → Release → Run workflow* runs the whole pipeline by hand. The optional
+`version` input (such as `0.2.0-rc.1`) overrides `Cargo.toml` for that run only. The jobs apply it
+with `cargo xtask version set` before building, so the binaries report it too. The run still needs
+the `release` environment, which only the `release` branch can use, so pick that branch in the
+dialog.
+
+## What gets built
+
+| Platform | Artifacts | Built on |
+|---|---|---|
+| macOS 11+ (universal: Apple silicon + Intel) | `soundcraft-<v>-macos-universal.dmg`, `soundcraft-cli-<v>-macos-universal.zip` | `macos-15` |
+| Windows 10+ x64 | `soundcraft-<v>-windows-x64.msi`, `soundcraft-<v>-windows-x64-portable.zip` | `windows-latest` |
+| Windows 10+ x86 (32-bit) | `soundcraft-<v>-windows-x86.msi`, `soundcraft-<v>-windows-x86-portable.zip` | `windows-latest` |
+| Windows 11 ARM64 | `soundcraft-<v>-windows-arm64.msi`, `soundcraft-<v>-windows-arm64-portable.zip` | `windows-latest` (cross-compiled; `windows-arm64.yml` installs and runs it on ARM64) |
+| Linux x86_64 | `soundcraft-<v>-linux-x86_64.{AppImage,deb,rpm,tar.gz}` | `ubuntu-22.04` |
+| Linux aarch64 | `soundcraft-<v>-linux-aarch64.{AppImage,deb,rpm,tar.gz}` | `ubuntu-22.04-arm` |
+| FreeBSD 14 x86_64 | `soundcraft-<v>-freebsd-x86_64.tar.gz` (a `/usr/local` tree) | FreeBSD 14.3 VM on `ubuntu-latest` |
+| Web | `soundcraft-web-<v>.zip` (static site; see [`packaging/web/README.md`](../packaging/web/README.md)) | `ubuntu-latest` |
+
+The Flatpak manifest (`packaging/linux/flatpak/ai.storyteller.soundcraft.yml`) is kept ready for a
+Flathub submission and validated in CI, but not built there (see Linux below).
+
+### Audio libraries
+
+SoundCraft plays and records through [cpal](https://github.com/RustAudio/cpal): CoreAudio on
+macOS, WASAPI on Windows, ALSA on Linux and FreeBSD (PulseAudio and PipeWire through their ALSA
+plugins), and WebAudio in the browser.
+
+- **Linux** builds need the ALSA headers (`libasound2-dev` and `pkg-config` on Ubuntu). The binary
+  links `libasound.so.2`, so the `.deb` depends on `libasound2 | libasound2t64` and the `.rpm` on
+  `alsa-lib`; the AppImage and tarball expect it on the host (every desktop distro has it).
+- **FreeBSD** builds need `alsa-lib` (`pkg install alsa-lib`); at runtime `alsa-plugins-oss`
+  routes ALSA to the OSS `sound(4)` devices. Without a device the player falls back to its
+  silent clock, so the transport still runs.
+- **Flatpak**: alsa-lib and its PulseAudio plugin come with the freedesktop runtime; the
+  manifest grants `--socket=pulseaudio`.
+- **Web**: browsers start audio only after a user gesture, so the first click in the page may be
+  needed before sound plays. The web build has no recording.
+
+### macOS
+
+`packaging/macos/package.sh` builds `aarch64-apple-darwin` and `x86_64-apple-darwin` with
+`MACOSX_DEPLOYMENT_TARGET=11.0`, joins them with `lipo`, and assembles `SoundCraft.app`:
+
+- `Info.plist` is generated from `Info.plist.in`. The bundle id is `ai.storyteller.soundcraft`.
+  It declares the `.scraft` session type (`ai.storyteller.soundcraft.session`, MIME
+  `application/x-soundcraft-session`, role Editor, rank Owner) and lists WAV, AIFF/AIFC, FLAC,
+  MP3 and MIDI as Viewer/Alternate, so SoundCraft appears under *Open With* without taking over
+  the default player. `NSMicrophoneUsageDescription` explains the recording prompt.
+- **Signing** goes inside-out with the hardened runtime and a secure timestamp. The executable is
+  signed first, then the bundle. There's no `--deep` on the final signature. `entitlements.plist`
+  holds a single exception, `com.apple.security.device.audio-input`, without which the hardened
+  runtime blocks recording.
+- **Notarization:** the app is zipped and sent with `xcrun notarytool submit --wait`, then the
+  ticket is stapled to the app. The app goes on a DMG (`hdiutil`, with an `Applications` link).
+  The DMG is signed, notarized and stapled too.
+- **CLI:** the universal `soundcraft-cli` is signed with the hardened runtime, zipped and
+  notarized.
+
+Locally, without certificates, the script signs ad-hoc (`codesign -s -`) and skips notarization:
+
+```sh
+packaging/macos/package.sh                    # universal; needs both rustup targets
+packaging/macos/package.sh --arch aarch64     # quicker, host-only
+open dist/release/soundcraft-*-macos-*.dmg
+```
+
+### Windows
+
+`packaging/windows/package.ps1 -Arch x64|x86|arm64` builds with `-C target-feature=+crt-static`
+(in `CARGO_TARGET_<TRIPLE>_RUSTFLAGS`, so host build scripts aren't affected), so neither the MSI
+nor the portable zip needs the Visual C++ redistributable.
+
+- `apps/soundcraft/build.rs` embeds the icon (`assets/app-icon/soundcraft.ico`) and VERSIONINFO
+  with `winresource`, only when targeting Windows. Release packaging sets
+  `SOUNDCRAFT_REQUIRE_WINRES=1` so a missing resource compiler fails the build.
+- The script checks both PE headers: the machine type matches `-Arch`, `soundcraft.exe` is a GUI
+  app (no console window) and `soundcraft-cli.exe` a console app.
+- `soundcraft.wxs` (WiX v5) is a per-machine install into Program Files with an advertised Start
+  Menu shortcut. SoundCraft becomes the default app for `.scraft` and is listed under *Open with*
+  for `.wav`, `.aif`, `.aiff`, `.flac`, `.mp3`, `.mid` and `.midi`. It also registers App Paths
+  (Win+R `soundcraft`). The MSI version is the numeric `X.Y.Z`; same-version upgrades let release
+  candidates replace each other. The upgrade code `EE53D3E5-D0AE-40F9-808D-9417FDEBF61A` is fixed
+  forever.
+- **Signing:** `packaging/windows/sign.ps1` signs both `.exe` files and then the `.msi` with
+  `signtool` (SHA-256, RFC 3161 timestamp), using a `.pfx` (`WINDOWS_CERTIFICATE*`) if present,
+  otherwise Azure Trusted Signing (all six `AZURE_*`), otherwise nothing (a warning).
+
+Locally on Windows: `dotnet tool install -g wix --version 5.0.2`, then
+`pwsh packaging/windows/package.ps1 -Arch x64`.
+
+### Linux
+
+`packaging/linux/package.sh` stages one FHS tree and makes every format from it: both binaries,
+`ai.storyteller.soundcraft.desktop` (with `MimeType=` for sessions, WAV, AIFF, FLAC, MP3 and
+MIDI), hicolor icons from 16 px to 512 px plus a scalable SVG, AppStream metainfo, and a
+shared-mime-info file declaring `application/x-soundcraft-session` (`*.scraft`).
+
+- **AppImage** (maintained `AppImage/appimagetool`, static runtime: no libfuse2 needed).
+- **.deb** and **.rpm** by [nfpm](https://nfpm.goreleaser.com/) from one `nfpm.yaml`; the
+  `postinst.sh` hook refreshes the desktop, MIME and icon caches.
+- **.tar.gz** for people who manage their own `/opt` or `~/.local`.
+- **Flatpak**: `packaging/linux/flatpak/ai.storyteller.soundcraft.yml` builds from source on the
+  freedesktop 25.08 runtime with Wayland/X11, `dri`, PulseAudio and `xdg-music`; other files go
+  through the portals. A real build needs vendored crates (`cargo-sources.json` from
+  `flatpak-cargo-generator.py`); the commands are in the manifest's header.
+
+Binaries are built on Ubuntu 22.04 and need **glibc ≥ 2.35**. X11, Wayland, xkbcommon, Vulkan
+and EGL are loaded at runtime, so the packages declare them as dependencies or recommendations.
+
+Locally (on Linux): install nfpm, then `packaging/linux/package.sh` (or `--formats "deb tar"`).
+
+### FreeBSD
+
+GitHub has no FreeBSD runners, so the `freebsd` job builds inside a FreeBSD 14.3 VM
+(`vmactions/freebsd-vm`, pinned by commit) and runs `packaging/freebsd/package.sh`, which stages
+a `/usr/local`-style tree (binaries, desktop entry, MIME type, metainfo, icons, docs) as a
+`.tar.gz`. Install with `tar -xzf soundcraft-*-freebsd-x86_64.tar.gz --strip-components 1 -C /usr/local`.
+`.github/workflows/freebsd.yml` builds and tests the workspace there on every push to `main`.
+
+### Web
+
+`packaging/web/package.sh` runs `trunk build --release` in `apps/soundcraft-web` (output in
+`dist/web`, `public_url = "./"`) and zips the site with sample `_headers` and `.htaccess` files and
+the hosting guide. `apps/soundcraft-web` runs the same `SoundApp` as the desktop app on the
+synthesised demo session, rendering with wgpu (WebGPU, or WebGL2 with `?webgl`) and playing
+through WebAudio.
+
+## Secrets
+
+All secrets live in the repository's **`release` environment** (*Settings → Environments →
+release*), restricted to the `release` branch. Every job in `release.yml` declares
+`environment: release`. Each secret is optional: if one is missing, that platform's artifacts
+are unsigned and the run shows a `::warning::`. Scripts never echo secret values; certificates
+are written with `umask 077` and deleted in `always()`/`finally` steps.
+
+| Secret | Used for |
+|---|---|
+| `APPLE_CERTIFICATE` | base64 `.p12` with "Developer ID Application: Learning Machines LLC (DJ6XS33FX8)" |
+| `APPLE_CERTIFICATE_PASSWORD` | password for that `.p12` |
+| `KEYCHAIN_PASSWORD` | password for the temporary CI keychain (random if unset) |
+| `APPLE_ID` | Apple ID used by `notarytool` |
+| `APPLE_PASSWORD` | app-specific password for that Apple ID |
+| `APPLE_TEAM_ID` | `DJ6XS33FX8` |
+| `WINDOWS_CERTIFICATE` / `WINDOWS_CERTIFICATE_PASSWORD` | base64 `.pfx` (unused: Windows uses Azure) |
+| `AZURE_TENANT_ID`, `AZURE_CLIENT_ID`, `AZURE_CLIENT_SECRET` | service principal for Azure Trusted Signing |
+| `AZURE_SIGNING_ENDPOINT`, `AZURE_SIGNING_ACCOUNT`, `AZURE_CERT_PROFILE` | Trusted Signing endpoint, account and profile |
+
+`GITHUB_TOKEN` creates the release. Only the final job gets `contents: write`. Provisioning the
+environment, ruleset and secrets for a new repo: craftrules `release/signing-setup.md`.
+
+## Icons
+
+`assets/app-icon/icon.svg` is the canonical icon: a **placeholder** singing nightingale, drawn as
+original SVG in the three-colour icon palette (ink, paper, SoundCraft teal `#14a9c4`); see
+`assets/app-icon/README.md`. `packaging/icons.sh` regenerates the 1024 px PNG, the macOS 512 px
+window icon, the `.icns`, the `.ico` (packed by `cargo xtask ico`) and the hicolor PNGs from it.
+It needs `resvg`, plus `iconutil` on macOS. The outputs are committed, so packaging never needs
+those tools. `apps/soundcraft/src/main.rs` sets the runtime window/Dock/taskbar icon from them.
+
+## Checks
+
+`.github/workflows/packaging-lint.yml` runs in seconds on any change to `packaging/`, the
+workflows or the icons: actionlint, shellcheck, a PowerShell parse, xmllint (WiX, plists,
+AppStream, MIME), `desktop-file-validate`, `appstreamcli validate`, and a YAML check of the
+Flatpak manifest.
@@ -0,0 +1,3 @@
+# shellcheck config for the packaging scripts (CI: .github/workflows/packaging-lint.yml).
+source-path=SCRIPTDIR
+external-sources=true
@@ -0,0 +1,59 @@
+# shellcheck shell=bash
+# Shared setup for the packaging scripts. Source it: `. "$(dirname "$0")/../env.sh"`.
+#
+# Exports:
+#   ROOT                    workspace root
+#   VERSION                 [workspace.package] version from Cargo.toml (override: SOUNDCRAFT_VERSION)
+#   DIST                    output directory for release artifacts (default: $ROOT/dist/release)
+#   SOUNDCRAFT_BUILD_SHA    git commit (recorded in the macOS Info.plist and the job summary)
+#   SOUNDCRAFT_BUILD_DATE   UTC build date, YYYY-MM-DD (AppStream release date)
+#   CARGO_TARGET_DIR        cargo's target dir (default: $ROOT/target)
+
+ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+export ROOT
+
+# The version lives in exactly one place: `[workspace.package] version` in the root Cargo.toml.
+# (`cargo xtask version` prints the same thing; awk avoids compiling xtask here.)
+workspace_version() {
+  awk '
+    /^\[/ { in_pkg = ($0 == "[workspace.package]") ; next }
+    in_pkg && $1 == "version" { gsub(/[" ]/, "", $3); print $3; exit }
+  ' "$ROOT/Cargo.toml"
+}
+
+VERSION="${SOUNDCRAFT_VERSION:-$(workspace_version)}"
+if [ -z "$VERSION" ]; then
+  echo "error: could not read [workspace.package] version from $ROOT/Cargo.toml" >&2
+  exit 1
+fi
+export VERSION
+
+DIST="${DIST:-$ROOT/dist/release}"
+mkdir -p "$DIST"
+export DIST
+
+if [ -z "${SOUNDCRAFT_BUILD_SHA:-}" ]; then
+  SOUNDCRAFT_BUILD_SHA="$(git -C "$ROOT" rev-parse HEAD 2>/dev/null || true)"
+fi
+export SOUNDCRAFT_BUILD_SHA
+export SOUNDCRAFT_BUILD_DATE="${SOUNDCRAFT_BUILD_DATE:-$(date -u +%Y-%m-%d)}"
+export CARGO_TARGET_DIR="${CARGO_TARGET_DIR:-$ROOT/target}"
+
+# Emit a GitHub Actions warning (plain stderr outside Actions).
+warn() {
+  if [ -n "${GITHUB_ACTIONS:-}" ]; then echo "::warning::$*"; else echo "warning: $*" >&2; fi
+}
+
+# Copy licence and readme files that exist into a package directory.
+copy_docs() {
+  local dest="$1" f
+  for f in README.md LICENSE LICENSE-MIT LICENSE-APACHE NOTICE ATTRIBUTION.md COPYRIGHT; do
+    if [ -f "$ROOT/$f" ]; then cp "$ROOT/$f" "$dest/"; fi
+  done
+}
+
+
+# Portable SHA-256 of a file (prints just the hash).
+sha256() {
+  if command -v sha256sum >/dev/null; then sha256sum "$1" | cut -d' ' -f1; else shasum -a 256 "$1" | cut -d' ' -f1; fi
+}
@@ -0,0 +1,68 @@
+#!/usr/bin/env bash
+# Build and package SoundCraft for FreeBSD:
+#
+#   $DIST/soundcraft-<version>-freebsd-x86_64.tar.gz   a /usr/local-style tree:
+#       soundcraft-<version>-freebsd-x86_64/{bin, share/applications, share/icons, share/mime,
+#       share/metainfo, share/doc/soundcraft}
+#
+# Install by copying the tree's contents into /usr/local, e.g.
+#   tar -xzf soundcraft-*-freebsd-x86_64.tar.gz --strip-components 1 -C /usr/local
+#
+# Usage: packaging/freebsd/package.sh [--skip-build]
+#
+# Needs: bash, cargo and the build dependencies listed in .github/workflows/freebsd.yml (alsa-lib for
+# cpal's audio I/O; at runtime alsa-plugins-oss routes ALSA to FreeBSD's OSS sound(4)). FreeBSD's
+# install(1) has no -D, so directories are created first.
+set -euo pipefail
+# shellcheck source=../env.sh
+. "$(dirname "${BASH_SOURCE[0]}")/../env.sh"
+LINUX="$ROOT/packaging/linux"
+APP_ID=ai.storyteller.soundcraft
+
+SKIP_BUILD=0
+while [ $# -gt 0 ]; do
+  case "$1" in
+    --skip-build) SKIP_BUILD=1; shift ;;
+    -h | --help) sed -n '2,15p' "$0"; exit 0 ;;
+    *) echo "unknown argument: $1" >&2; exit 2 ;;
+  esac
+done
+
+# FreeBSD calls x86_64 "amd64"; release names use the Rust/Linux spelling.
+case "$(uname -m)" in
+  amd64 | x86_64) ARCH=x86_64 ;;
+  arm64 | aarch64) ARCH=aarch64 ;;
+  *) echo "unsupported architecture $(uname -m)" >&2; exit 2 ;;
+esac
+BASENAME="soundcraft-$VERSION-freebsd-$ARCH"
+
+echo "==> SoundCraft $VERSION for FreeBSD $ARCH"
+
+if [ "$SKIP_BUILD" = 0 ]; then
+  (cd "$ROOT" && cargo build --release --locked -p soundcraft -p soundcraft-cli)
+fi
+BIN="$CARGO_TARGET_DIR/release"
+WORK="$CARGO_TARGET_DIR/freebsd-package"
+STAGE="$WORK/$BASENAME"
+rm -rf "$WORK"
+
+# ---- stage a /usr/local-style tree ---------------------------------------------------------------
+mkdir -p "$STAGE/bin" "$STAGE/share/applications" "$STAGE/share/mime/packages" "$STAGE/share/metainfo" \
+  "$STAGE/share/icons" "$STAGE/share/doc/soundcraft"
+install -m 755 "$BIN/soundcraft" "$BIN/soundcraft-cli" "$STAGE/bin/"
+strip "$STAGE/bin/soundcraft" "$STAGE/bin/soundcraft-cli" 2>/dev/null || true
+# The desktop entry, MIME type and metainfo are the freedesktop files the Linux packages use.
+install -m 644 "$LINUX/$APP_ID.desktop" "$STAGE/share/applications/$APP_ID.desktop"
+install -m 644 "$LINUX/$APP_ID.mime.xml" "$STAGE/share/mime/packages/$APP_ID.xml"
+sed -e "s/@VERSION@/$VERSION/g" -e "s/@DATE@/$SOUNDCRAFT_BUILD_DATE/g" \
+  "$LINUX/$APP_ID.metainfo.xml.in" >"$STAGE/share/metainfo/$APP_ID.metainfo.xml"
+cp -R "$ROOT/assets/app-icon/hicolor" "$STAGE/share/icons/"
+copy_docs "$STAGE/share/doc/soundcraft"
+
+# ---- .tar.gz -------------------------------------------------------------------------------------
+tar -C "$WORK" -czf "$DIST/$BASENAME.tar.gz" "$BASENAME"
+echo "wrote $DIST/$BASENAME.tar.gz"
+
+"$STAGE/bin/soundcraft-cli" --version
+echo "==> done"
+ls -lh "$DIST"
@@ -0,0 +1,58 @@
+#!/usr/bin/env bash
+# Regenerate every app icon from assets/app-icon/icon.svg.
+#
+# Needs: resvg (brew install resvg / cargo install resvg). On macOS, iconutil also writes the
+# .icns. The outputs are committed, so builds and packaging never need these tools.
+#
+#   packaging/icons.sh
+set -euo pipefail
+ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+DIR="$ROOT/assets/app-icon"
+SVG="$DIR/icon.svg"
+ID="ai.storyteller.soundcraft"
+TMP="$(mktemp -d)"
+trap 'rm -rf "$TMP"' EXIT
+
+command -v resvg >/dev/null || { echo "error: resvg not found (brew install resvg)" >&2; exit 1; }
+
+# The artwork is a full-bleed 512 tile (rx=112). Windows and Linux use it as is. macOS icons sit on
+# Apple's grid: an 824/1024 body with a transparent margin, so widen the viewBox to 512*1024/824.
+MAC="$TMP/mac.svg"
+sed 's/viewBox="0 0 512 512"/viewBox="-62.136 -62.136 636.272 636.272"/' "$SVG" >"$MAC"
+grep -q 'viewBox="-62.136' "$MAC" || { echo "error: expected viewBox=\"0 0 512 512\" in $SVG" >&2; exit 1; }
+
+render() { resvg -w "$2" -h "$2" "$1" "$3" </dev/null; }
+
+render "$SVG" 1024 "$DIR/soundcraft-1024.png"
+# Runtime window/Dock icon on macOS (embedded by apps/soundcraft); other platforms use hicolor 256.
+render "$MAC" 512 "$DIR/soundcraft-macos-512.png"
+
+# Linux hicolor theme.
+for s in 16 24 32 48 64 128 256 512; do
+  mkdir -p "$DIR/hicolor/${s}x${s}/apps"
+  render "$SVG" "$s" "$DIR/hicolor/${s}x${s}/apps/$ID.png"
+done
+mkdir -p "$DIR/hicolor/scalable/apps"
+cp "$SVG" "$DIR/hicolor/scalable/apps/$ID.svg"
+
+# Windows .ico.
+ICO_PNGS=()
+for s in 16 20 24 32 40 48 64 128 256; do
+  render "$SVG" "$s" "$TMP/ico-$s.png"
+  ICO_PNGS+=("$TMP/ico-$s.png")
+done
+(cd "$ROOT" && cargo run -q -p xtask -- ico "$DIR/soundcraft.ico" "${ICO_PNGS[@]}")
+
+# macOS .icns.
+if command -v iconutil >/dev/null; then
+  SET="$TMP/soundcraft.iconset"
+  mkdir -p "$SET"
+  for s in 16 32 128 256 512; do
+    render "$MAC" "$s" "$SET/icon_${s}x${s}.png"
+    render "$MAC" $((s * 2)) "$SET/icon_${s}x${s}@2x.png"
+  done
+  iconutil -c icns -o "$DIR/soundcraft.icns" "$SET"
+else
+  echo "warning: iconutil not found (macOS only); soundcraft.icns not regenerated" >&2
+fi
+echo "icons written to $DIR"
@@ -0,0 +1,14 @@
+[Desktop Entry]
+Type=Application
+Name=SoundCraft
+GenericName=Digital Audio Workstation
+Comment=Record, edit and mix audio and MIDI
+Exec=soundcraft %F
+TryExec=soundcraft
+Icon=ai.storyteller.soundcraft
+Terminal=false
+StartupNotify=true
+StartupWMClass=ai.storyteller.soundcraft
+Categories=AudioVideo;Audio;Midi;Mixer;Sequencer;Recorder;
+MimeType=application/x-soundcraft-session;audio/x-wav;audio/wav;audio/vnd.wave;audio/x-aiff;audio/aiff;audio/flac;audio/x-flac;audio/mpeg;audio/midi;audio/x-midi;
+Keywords=daw;audio;mixer;recording;multitrack;midi;editor;music;
@@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- AppStream metadata (software centres, Flathub). Template: package.sh and the Flatpak
+     manifest substitute @VERSION@ and @DATE@ from Cargo.toml and the build date. -->
+<component type="desktop-application">
+  <id>ai.storyteller.soundcraft</id>
+  <metadata_license>CC0-1.0</metadata_license>
+  <project_license>MIT OR Apache-2.0</project_license>
+  <name>SoundCraft</name>
+  <summary>Record, edit and mix audio and MIDI</summary>
+  <developer id="ai.storyteller">
+    <name>Learning Machines LLC</name>
+  </developer>
+  <description>
+    <p>
+      SoundCraft is an open-source, native digital audio workstation. Record, edit and mix
+      multitrack audio and MIDI in Edit and Mix windows that work the way studio engineers expect.
+    </p>
+    <ul>
+      <li>Non-destructive clip editing with fades, playlists, grids and markers</li>
+      <li>A mixer with inserts, sends, buses, automation and metering</li>
+      <li>Built-in EQ, dynamics, reverb, delay, modulation and instruments</li>
+      <li>Imports WAV, AIFF, FLAC, MP3 and MIDI; bounces to disk</li>
+      <li>A headless command line and an MCP server for scripting and agents</li>
+    </ul>
+  </description>
+  <launchable type="desktop-id">ai.storyteller.soundcraft.desktop</launchable>
+  <icon type="stock">ai.storyteller.soundcraft</icon>
+  <!-- Only url types known to appstream 0.15 (Ubuntu 22.04, where CI validates): no vcs-browser. -->
+  <url type="homepage">https://getartcraft.com/apps/soundcraft</url>
+  <url type="bugtracker">https://github.com/storytold/soundcraft/issues</url>
+  <url type="help">https://github.com/storytold/soundcraft</url>
+  <url type="contact">https://discord.gg/artcraft</url>
+  <categories>
+    <category>AudioVideo</category>
+    <category>Audio</category>
+  </categories>
+  <keywords>
+    <keyword>daw</keyword>
+    <keyword>audio</keyword>
+    <keyword>mixer</keyword>
+    <keyword>recording</keyword>
+    <keyword>midi</keyword>
+  </keywords>
+  <branding>
+    <color type="primary" scheme_preference="light">#8fd9e6</color>
+    <color type="primary" scheme_preference="dark">#0b7385</color>
+  </branding>
+  <requires>
+    <display_length compare="ge">760</display_length>
+  </requires>
+  <supports>
+    <control>keyboard</control>
+    <control>pointing</control>
+  </supports>
+  <provides>
+    <binary>soundcraft</binary>
+    <mediatype>application/x-soundcraft-session</mediatype>
+  </provides>
+  <content_rating type="oars-1.1"/>
+  <releases>
+    <release version="@VERSION@" date="@DATE@"/>
+  </releases>
+</component>
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- shared-mime-info definition for SoundCraft's session format. Audio and MIDI types come from
+     the system database. Installed to /usr/share/mime/packages/ (update-mime-database runs on
+     install). -->
+<mime-info xmlns="http://www.freedesktop.org/standards/shared-mime-info">
+  <mime-type type="application/x-soundcraft-session">
+    <comment>SoundCraft session</comment>
+    <sub-class-of type="application/json"/>
+    <icon name="ai.storyteller.soundcraft"/>
+    <glob pattern="*.scraft"/>
+  </mime-type>
+</mime-info>
@@ -0,0 +1,64 @@
+# Flatpak manifest for SoundCraft, ready for a Flathub submission.
+#
+# Flatpak builds run offline, so the crate sources must be vendored first. From the repo root:
+#
+#   curl -fsSLO https://raw.githubusercontent.com/flatpak/flatpak-builder-tools/master/cargo/flatpak-cargo-generator.py
+#   python3 flatpak-cargo-generator.py Cargo.lock -o packaging/linux/flatpak/cargo-sources.json
+#   flatpak-builder --user --install --force-clean build-flatpak packaging/linux/flatpak/ai.storyteller.soundcraft.yml
+#   flatpak run ai.storyteller.soundcraft
+#
+# For Flathub, replace the `dir` source with a `git` source pinned to a release tag and commit.
+#
+# Audio: cpal talks to ALSA. alsa-lib (headers in the Sdk, the library in the Platform) and its
+# PulseAudio plugin ship with the freedesktop runtime, which routes ALSA through the PulseAudio
+# socket (PipeWire's pulse server on modern desktops), so no extra module is needed.
+id: ai.storyteller.soundcraft
+runtime: org.freedesktop.Platform
+runtime-version: '25.08'
+sdk: org.freedesktop.Sdk
+sdk-extensions:
+  - org.freedesktop.Sdk.Extension.rust-stable
+command: soundcraft
+finish-args:
+  - --share=ipc
+  - --socket=wayland
+  - --socket=fallback-x11
+  - --device=dri
+  # Playback and recording (ALSA through the PulseAudio/PipeWire socket).
+  - --socket=pulseaudio
+  # Open/Save dialogs use the file-chooser portal (rfd), and drag-and-drop uses the document
+  # portal, so broad filesystem access isn't needed. Music is granted for sessions and their
+  # "Audio Files" folders opened by path from the command line.
+  - --filesystem=xdg-music
+build-options:
+  append-path: /usr/lib/sdk/rust-stable/bin
+modules:
+  - name: soundcraft
+    buildsystem: simple
+    build-options:
+      env:
+        CARGO_HOME: /run/build/soundcraft/cargo
+        CARGO_NET_OFFLINE: 'true'
+    build-commands:
+      - cargo --offline build --release --locked -p soundcraft -p soundcraft-cli
+      - install -Dm755 target/release/soundcraft /app/bin/soundcraft
+      - install -Dm755 target/release/soundcraft-cli /app/bin/soundcraft-cli
+      - install -Dm644 packaging/linux/ai.storyteller.soundcraft.desktop /app/share/applications/ai.storyteller.soundcraft.desktop
+      - install -Dm644 packaging/linux/ai.storyteller.soundcraft.mime.xml /app/share/mime/packages/ai.storyteller.soundcraft.xml
+      - mkdir -p /app/share/icons && cp -R assets/app-icon/hicolor /app/share/icons/
+      - >-
+        version=$(awk '/^\[/{p=($0=="[workspace.package]");next} p&&$1=="version"{gsub(/[" ]/,"",$3);print $3;exit}' Cargo.toml);
+        install -d /app/share/metainfo;
+        sed -e "s/@VERSION@/$version/" -e "s/@DATE@/$(date -u +%Y-%m-%d)/"
+        packaging/linux/ai.storyteller.soundcraft.metainfo.xml.in > /app/share/metainfo/ai.storyteller.soundcraft.metainfo.xml
+    sources:
+      - type: dir
+        path: ../../..
+        skip:
+          - target
+          - dist
+          - corpus
+          - plan
+          - build-flatpak
+          - .flatpak-builder
+      - cargo-sources.json
@@ -0,0 +1,75 @@
+# .deb and .rpm packages (nfpm: https://nfpm.goreleaser.com). Run by package.sh, which stages
+# the file tree, substitutes its path for ${STAGE} (nfpm doesn't expand env vars in `src`) and
+# exports VERSION and NFPM_ARCH.
+#
+#   nfpm package -f packaging/linux/nfpm.yaml -p deb -t dist/release/
+name: soundcraft
+arch: ${NFPM_ARCH}
+platform: linux
+version: ${VERSION}
+# semver: 0.2.0-rc.1 becomes 0.2.0~rc.1 in deb/rpm, so pre-releases sort before the release.
+version_schema: semver
+release: 1
+section: sound
+priority: optional
+maintainer: ${SOUNDCRAFT_MAINTAINER}
+vendor: Learning Machines LLC
+homepage: https://getartcraft.com/apps/soundcraft
+license: MIT OR Apache-2.0
+description: |-
+  Open-source, native digital audio workstation. Record, edit and mix
+  multitrack audio and MIDI in Edit and Mix windows; built-in EQ, dynamics,
+  reverb, delay and instruments; imports WAV, AIFF, FLAC, MP3 and MIDI.
+  Includes soundcraft-cli, a headless editor, bounce tool and MCP server.
+
+# The app links glibc, libgcc_s and ALSA (libasound, for audio I/O through cpal; PulseAudio and
+# PipeWire are reached through their ALSA plugins). Windowing (X11/Wayland, xkbcommon) and the GPU
+# (Vulkan, EGL/GL) are loaded at runtime, so they are dependencies/recommendations here rather
+# than ELF NEEDED entries.
+overrides:
+  deb:
+    depends:
+      - libc6 (>= 2.35)
+      - libgcc-s1
+      - libasound2 | libasound2t64
+      - libxkbcommon0
+      - libvulkan1 | libegl1
+    recommends:
+      - libwayland-client0
+      - libx11-6
+      - libx11-xcb1
+      - libxcursor1
+      - libxi6
+      - libxrandr2
+      - mesa-vulkan-drivers
+      - xdg-desktop-portal
+      - pipewire-alsa | pulseaudio
+  rpm:
+    depends:
+      - alsa-lib
+      - libxkbcommon
+      - (vulkan-loader or libglvnd-egl)
+    recommends:
+      - libwayland-client
+      - libX11
+      - libXcursor
+      - libXi
+      - libXrandr
+      - mesa-vulkan-drivers
+      - xdg-desktop-portal
+      - (pipewire-alsa or alsa-plugins-pulseaudio)
+
+contents:
+  - src: ${STAGE}/usr/bin/soundcraft
+    dst: /usr/bin/soundcraft
+    file_info: { mode: 0755 }
+  - src: ${STAGE}/usr/bin/soundcraft-cli
+    dst: /usr/bin/soundcraft-cli
+    file_info: { mode: 0755 }
+  - src: ${STAGE}/usr/share/
+    dst: /usr/share/
+    type: tree
+
+scripts:
+  postinstall: packaging/linux/postinst.sh
+  postremove: packaging/linux/postinst.sh
@@ -0,0 +1,120 @@
+#!/usr/bin/env bash
+# Build and package SoundCraft for Linux (<arch> is x86_64 or aarch64):
+#
+#   $DIST/soundcraft-<version>-linux-<arch>.AppImage  any distro with glibc >= the build host's
+#   $DIST/soundcraft-<version>-linux-<arch>.deb       Debian, Ubuntu, Mint, Pop!_OS, ...
+#   $DIST/soundcraft-<version>-linux-<arch>.rpm       Fedora, openSUSE, RHEL, ...
+#   $DIST/soundcraft-<version>-linux-<arch>.tar.gz    plain FHS-style tree (bin/, share/)
+#
+# Usage: packaging/linux/package.sh [--skip-build] [--formats "appimage deb rpm tar"]
+#
+# Needs: cargo; nfpm for deb/rpm (https://nfpm.goreleaser.com); appimagetool for the AppImage
+# (downloaded into $CARGO_TARGET_DIR if missing). Build on an old distro (CI: Ubuntu 22.04,
+# glibc 2.35) so the binaries run on newer ones. Optional: desktop-file-validate, appstreamcli.
+set -euo pipefail
+# shellcheck source=../env.sh
+. "$(dirname "${BASH_SOURCE[0]}")/../env.sh"
+HERE="$ROOT/packaging/linux"
+APP_ID=ai.storyteller.soundcraft
+
+SKIP_BUILD=0
+FORMATS="appimage deb rpm tar"
+while [ $# -gt 0 ]; do
+  case "$1" in
+    --skip-build) SKIP_BUILD=1; shift ;;
+    --formats) FORMATS="$2"; shift 2 ;;
+    -h | --help) sed -n '2,15p' "$0"; exit 0 ;;
+    *) echo "unknown argument: $1" >&2; exit 2 ;;
+  esac
+done
+
+ARCH="$(uname -m)"
+case "$ARCH" in
+  x86_64) DEB_ARCH=amd64 ;;
+  aarch64 | arm64) ARCH=aarch64; DEB_ARCH=arm64 ;;
+  *) echo "unsupported architecture $ARCH" >&2; exit 2 ;;
+esac
+export SOUNDCRAFT_MAINTAINER="${SOUNDCRAFT_MAINTAINER:-SoundCraft maintainers <[email protected]>}"
+BASENAME="soundcraft-$VERSION-linux-$ARCH"
+
+echo "==> SoundCraft $VERSION for Linux $ARCH ($FORMATS)"
+
+if [ "$SKIP_BUILD" = 0 ]; then
+  (cd "$ROOT" && cargo build --release --locked -p soundcraft -p soundcraft-cli)
+fi
+BIN="$CARGO_TARGET_DIR/release"
+WORK="$CARGO_TARGET_DIR/linux-package"
+STAGE="$WORK/root"
+rm -rf "$WORK"
+
+# ---- stage an FHS tree (shared by every format) -------------------------------------------------
+install -Dm755 "$BIN/soundcraft" "$STAGE/usr/bin/soundcraft"
+install -Dm755 "$BIN/soundcraft-cli" "$STAGE/usr/bin/soundcraft-cli"
+strip "$STAGE/usr/bin/soundcraft" "$STAGE/usr/bin/soundcraft-cli" 2>/dev/null || true
+install -Dm644 "$HERE/$APP_ID.desktop" "$STAGE/usr/share/applications/$APP_ID.desktop"
+install -Dm644 "$HERE/$APP_ID.mime.xml" "$STAGE/usr/share/mime/packages/$APP_ID.xml"
+mkdir -p "$STAGE/usr/share/metainfo"
+sed -e "s/@VERSION@/$VERSION/g" -e "s/@DATE@/$SOUNDCRAFT_BUILD_DATE/g" \
+  "$HERE/$APP_ID.metainfo.xml.in" >"$STAGE/usr/share/metainfo/$APP_ID.metainfo.xml"
+mkdir -p "$STAGE/usr/share/icons"
+cp -R "$ROOT/assets/app-icon/hicolor" "$STAGE/usr/share/icons/"
+mkdir -p "$STAGE/usr/share/doc/soundcraft"
+copy_docs "$STAGE/usr/share/doc/soundcraft"
+
+if command -v desktop-file-validate >/dev/null; then
+  desktop-file-validate "$STAGE/usr/share/applications/$APP_ID.desktop"
+fi
+if command -v appstreamcli >/dev/null; then
+  appstreamcli validate --no-net --explain "$STAGE/usr/share/metainfo/$APP_ID.metainfo.xml"
+fi
+
+has() { case " $FORMATS " in *" $1 "*) return 0 ;; *) return 1 ;; esac; }
+
+# ---- .tar.gz ------------------------------------------------------------------------------------
+if has tar; then
+  mkdir -p "$WORK/tar"
+  cp -R "$STAGE/usr" "$WORK/tar/$BASENAME"
+  tar -C "$WORK/tar" -czf "$DIST/$BASENAME.tar.gz" "$BASENAME"
+  echo "wrote $DIST/$BASENAME.tar.gz"
+fi
+
+# ---- .deb / .rpm --------------------------------------------------------------------------------
+if has deb || has rpm; then
+  command -v nfpm >/dev/null || { echo "error: nfpm not found (https://nfpm.goreleaser.com/install/)" >&2; exit 1; }
+  export VERSION
+  export NFPM_ARCH="$DEB_ARCH"
+  # nfpm expands env vars in fields like `version` and `arch`, but not in `contents[].src`.
+  sed "s|\${STAGE}|$STAGE|g" "$HERE/nfpm.yaml" >"$WORK/nfpm.yaml"
+  for fmt in deb rpm; do
+    if has "$fmt"; then (cd "$ROOT" && nfpm package -f "$WORK/nfpm.yaml" -p "$fmt" -t "$DIST/$BASENAME.$fmt"); fi
+  done
+fi
+
+# ---- AppImage -----------------------------------------------------------------------------------
+if has appimage; then
+  APPDIR="$WORK/SoundCraft.AppDir"
+  cp -R "$STAGE" "$APPDIR"
+  mv "$APPDIR/usr/share/doc" "$WORK/doc-unused"
+  ln -s usr/bin/soundcraft "$APPDIR/AppRun"
+  cp "$HERE/$APP_ID.desktop" "$APPDIR/$APP_ID.desktop"
+  cp "$ROOT/assets/app-icon/hicolor/256x256/apps/$APP_ID.png" "$APPDIR/$APP_ID.png"
+  ln -s "$APP_ID.png" "$APPDIR/.DirIcon"
+
+  TOOL="${APPIMAGETOOL:-$(command -v appimagetool || true)}"
+  if [ -z "$TOOL" ]; then
+    TOOL="$CARGO_TARGET_DIR/appimagetool-$ARCH.AppImage"
+    if [ ! -x "$TOOL" ]; then
+      curl -fsSL -o "$TOOL" "https://github.com/AppImage/appimagetool/releases/download/continuous/appimagetool-$ARCH.AppImage"
+      chmod +x "$TOOL"
+    fi
+  fi
+  OUT="$DIST/$BASENAME.AppImage"
+  # Extract-and-run: works without FUSE (containers, CI). The output embeds the static runtime,
+  # so users don't need libfuse2 either.
+  ARCH="$ARCH" APPIMAGE_EXTRACT_AND_RUN=1 "$TOOL" --no-appstream "$APPDIR" "$OUT"
+  echo "wrote $OUT"
+fi
+
+"$STAGE/usr/bin/soundcraft-cli" --version
+echo "==> done"
+ls -lh "$DIST"
@@ -0,0 +1,13 @@
+#!/bin/sh
+# deb/rpm post-install and post-remove: refresh the desktop, MIME and icon caches.
+# Every tool is optional; missing ones are skipped.
+if command -v update-desktop-database >/dev/null 2>&1; then
+  update-desktop-database -q /usr/share/applications || true
+fi
+if command -v update-mime-database >/dev/null 2>&1; then
+  update-mime-database /usr/share/mime || true
+fi
+if command -v gtk-update-icon-cache >/dev/null 2>&1; then
+  gtk-update-icon-cache -q -t -f /usr/share/icons/hicolor || true
+fi
+exit 0
@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<!-- Template: packaging/macos/package.sh substitutes @VERSION@ (full, e.g. 0.2.0-rc.1),
+     @SHORT_VERSION@ (numeric X.Y.Z) and @BUILD_SHA@. -->
+<plist version="1.0">
+<dict>
+  <key>CFBundleDevelopmentRegion</key>
+  <string>en</string>
+  <key>CFBundleDisplayName</key>
+  <string>SoundCraft</string>
+  <key>CFBundleName</key>
+  <string>SoundCraft</string>
+  <key>CFBundleExecutable</key>
+  <string>SoundCraft</string>
+  <key>CFBundleIdentifier</key>
+  <string>ai.storyteller.soundcraft</string>
+  <key>CFBundleInfoDictionaryVersion</key>
+  <string>6.0</string>
+  <key>CFBundlePackageType</key>
+  <string>APPL</string>
+  <key>CFBundleSignature</key>
+  <string>????</string>
+  <key>CFBundleShortVersionString</key>
+  <string>@SHORT_VERSION@</string>
+  <key>CFBundleVersion</key>
+  <string>@SHORT_VERSION@</string>
+  <key>SoundCraftVersion</key>
+  <string>@VERSION@</string>
+  <key>SoundCraftBuildCommit</key>
+  <string>@BUILD_SHA@</string>
+  <key>CFBundleIconFile</key>
+  <string>SoundCraft</string>
+  <key>LSApplicationCategoryType</key>
+  <string>public.app-category.music</string>
+  <!-- Must match MACOSX_DEPLOYMENT_TARGET in package.sh. Big Sur is the first release on
+       Apple silicon and has the Metal feature set wgpu targets. -->
+  <key>LSMinimumSystemVersion</key>
+  <string>11.0</string>
+  <key>NSHighResolutionCapable</key>
+  <true/>
+  <key>NSSupportsAutomaticGraphicsSwitching</key>
+  <true/>
+  <key>NSRequiresAquaSystemAppearance</key>
+  <false/>
+  <!-- Shown by macOS the first time SoundCraft opens an input device (recording). -->
+  <key>NSMicrophoneUsageDescription</key>
+  <string>SoundCraft records audio from the input you choose.</string>
+  <key>NSHumanReadableCopyright</key>
+  <string>Copyright © the SoundCraft authors. MIT OR Apache-2.0.</string>
+
+  <!-- SoundCraft's own format: a JSON session file next to an "Audio Files" folder. -->
+  <key>UTExportedTypeDeclarations</key>
+  <array>
+    <dict>
+      <key>UTTypeIdentifier</key>
+      <string>ai.storyteller.soundcraft.session</string>
+      <key>UTTypeDescription</key>
+      <string>SoundCraft Session</string>
+      <key>UTTypeConformsTo</key>
+      <array>
+        <string>public.data</string>
+        <string>public.content</string>
+      </array>
+      <key>UTTypeIconFile</key>
+      <string>SoundCraft</string>
+      <key>UTTypeTagSpecification</key>
+      <dict>
+        <key>public.filename-extension</key>
+        <array><string>scraft</string></array>
+        <key>public.mime-type</key>
+        <array><string>application/x-soundcraft-session</string></array>
+      </dict>
+    </dict>
+  </array>
+
+  <key>CFBundleDocumentTypes</key>
+  <array>
+    <dict>
+      <key>CFBundleTypeName</key>
+      <string>SoundCraft Session</string>
+      <key>CFBundleTypeRole</key>
+      <string>Editor</string>
+      <key>LSHandlerRank</key>
+      <string>Owner</string>
+      <key>CFBundleTypeIconFile</key>
+      <string>SoundCraft</string>
+      <key>LSItemContentTypes</key>
+      <array><string>ai.storyteller.soundcraft.session</string></array>
+    </dict>
+    <!-- Audio and MIDI: offered under "Open With" (imported into a session), never taking over
+         the user's default player. -->
+    <dict>
+      <key>CFBundleTypeName</key>
+      <string>Audio File</string>
+      <key>CFBundleTypeRole</key>
+      <string>Viewer</string>
+      <key>LSHandlerRank</key>
+      <string>Alternate</string>
+      <key>LSItemContentTypes</key>
+      <array>
+        <string>com.microsoft.waveform-audio</string>
+        <string>public.aiff-audio</string>
+        <string>public.aifc-audio</string>
+        <string>org.xiph.flac</string>
+        <string>public.mp3</string>
+      </array>
+    </dict>
+    <dict>
+      <key>CFBundleTypeName</key>
+      <string>MIDI File</string>
+      <key>CFBundleTypeRole</key>
+      <string>Viewer</string>
+      <key>LSHandlerRank</key>
+      <string>Alternate</string>
+      <key>LSItemContentTypes</key>
+      <array><string>public.midi-audio</string></array>
+    </dict>
+  </array>
+</dict>
+</plist>
@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<!-- Hardened-runtime entitlements for SoundCraft. The app is pure Rust, loads no unsigned code,
+     needs no JIT, and is not sandboxed (it opens files by path, from the command line and
+     drag-and-drop). Add exceptions here only with a reason in a comment. -->
+<plist version="1.0">
+<dict>
+  <!-- Recording: the hardened runtime blocks audio input (CoreAudio via cpal) without this,
+       even after the user grants microphone access (NSMicrophoneUsageDescription). -->
+  <key>com.apple.security.device.audio-input</key>
+  <true/>
+</dict>
+</plist>
@@ -0,0 +1,50 @@
+#!/usr/bin/env bash
+# CI only: import the Developer ID certificate into a temporary keychain so codesign can use it.
+#
+# Inputs (env): APPLE_CERTIFICATE (base64 .p12), APPLE_CERTIFICATE_PASSWORD, KEYCHAIN_PASSWORD
+# (optional; random if unset), RUNNER_TEMP (or TMPDIR).
+# Outputs: MACOS_SIGN_IDENTITY (SHA-1 of the identity) and MACOS_KEYCHAIN, appended to
+# $GITHUB_ENV when running in Actions, otherwise printed.
+#
+# Missing certificate: prints a warning and exits 0, so package.sh falls back to ad-hoc signing.
+set -euo pipefail
+umask 077
+# shellcheck source=../env.sh
+. "$(dirname "${BASH_SOURCE[0]}")/../env.sh"
+
+if [ -z "${APPLE_CERTIFICATE:-}" ]; then
+  warn "APPLE_CERTIFICATE is not set: macOS builds will be ad-hoc signed and not notarized"
+  exit 0
+fi
+
+TMP="${RUNNER_TEMP:-${TMPDIR:-/tmp}}"
+KEYCHAIN="$TMP/soundcraft-signing.keychain-db"
+CERT="$TMP/soundcraft-signing.p12"
+KC_PASS="${KEYCHAIN_PASSWORD:-$(openssl rand -hex 24)}"
+
+trap 'rm -f "$CERT"' EXIT
+printf '%s' "$APPLE_CERTIFICATE" | base64 --decode >"$CERT"
+security create-keychain -p "$KC_PASS" "$KEYCHAIN"
+security set-keychain-settings -lut 21600 "$KEYCHAIN"
+security unlock-keychain -p "$KC_PASS" "$KEYCHAIN"
+security import "$CERT" -P "${APPLE_CERTIFICATE_PASSWORD:-}" -T /usr/bin/codesign -T /usr/bin/security -t cert -f pkcs12 -k "$KEYCHAIN"
+rm -f "$CERT"
+# Let codesign use the key without a UI prompt.
+security set-key-partition-list -S apple-tool:,apple:,codesign: -s -k "$KC_PASS" "$KEYCHAIN" >/dev/null
+# Put it on the search list (keeping the login keychain) so codesign and notarytool find it.
+# shellcheck disable=SC2046
+security list-keychains -d user -s "$KEYCHAIN" $(security list-keychains -d user | tr -d '"')
+
+IDENTITY="$(security find-identity -v -p codesigning "$KEYCHAIN" | awk '/Developer ID Application/ { print $2; exit }')"
+if [ -z "$IDENTITY" ]; then
+  security find-identity -v -p codesigning "$KEYCHAIN" >&2
+  echo "error: no 'Developer ID Application' identity in APPLE_CERTIFICATE" >&2
+  exit 1
+fi
+echo "Imported signing identity $IDENTITY"
+if [ -n "${GITHUB_ENV:-}" ]; then
+  { echo "MACOS_SIGN_IDENTITY=$IDENTITY"; echo "MACOS_KEYCHAIN=$KEYCHAIN"; } >>"$GITHUB_ENV"
+else
+  echo "MACOS_SIGN_IDENTITY=$IDENTITY"
+  echo "MACOS_KEYCHAIN=$KEYCHAIN"
+fi
@@ -0,0 +1,162 @@
+#!/usr/bin/env bash
+# Build, sign and (optionally) notarize the macOS release artifacts:
+#
+#   $DIST/soundcraft-<version>-macos-<arch>.dmg          SoundCraft.app on a drag-to-Applications DMG
+#   $DIST/soundcraft-cli-<version>-macos-<arch>.zip      the headless CLI
+#
+# Usage: packaging/macos/package.sh [--arch universal|aarch64|x86_64] [--skip-build]
+#
+# Signing (env):
+#   MACOS_SIGN_IDENTITY   codesign identity (name or SHA-1). Default "-" = ad-hoc (local testing;
+#                         Gatekeeper will reject the result on other Macs). In CI, import-cert.sh sets it.
+#   MACOS_KEYCHAIN        keychain holding the identity (optional)
+# Notarization (env; all three needed, and a real identity):
+#   APPLE_ID, APPLE_PASSWORD (app-specific password), APPLE_TEAM_ID
+set -euo pipefail
+# shellcheck source=../env.sh
+. "$(dirname "${BASH_SOURCE[0]}")/../env.sh"
+HERE="$ROOT/packaging/macos"
+
+ARCH=universal
+SKIP_BUILD=0
+while [ $# -gt 0 ]; do
+  case "$1" in
+    --arch) ARCH="$2"; shift 2 ;;
+    --skip-build) SKIP_BUILD=1; shift ;;
+    -h | --help) sed -n '2,16p' "$0"; exit 0 ;;
+    *) echo "unknown argument: $1" >&2; exit 2 ;;
+  esac
+done
+case "$ARCH" in
+  universal) TARGETS=(aarch64-apple-darwin x86_64-apple-darwin) ;;
+  aarch64) TARGETS=(aarch64-apple-darwin) ;;
+  x86_64) TARGETS=(x86_64-apple-darwin) ;;
+  *) echo "unknown --arch $ARCH" >&2; exit 2 ;;
+esac
+
+# Keep in sync with LSMinimumSystemVersion in Info.plist.in.
+export MACOSX_DEPLOYMENT_TARGET=11.0
+IDENTITY="${MACOS_SIGN_IDENTITY:--}"
+SHORT_VERSION="${VERSION%%-*}"
+WORK="$CARGO_TARGET_DIR/macos-package"
+APP="$WORK/SoundCraft.app"
+DMG="$DIST/soundcraft-$VERSION-macos-$ARCH.dmg"
+CLI_ZIP="$DIST/soundcraft-cli-$VERSION-macos-$ARCH.zip"
+
+NOTARIZE=0
+if [ "$IDENTITY" = "-" ]; then
+  warn "macOS: ad-hoc signing (no MACOS_SIGN_IDENTITY); artifacts are not notarized"
+elif [ -n "${APPLE_ID:-}" ] && [ -n "${APPLE_PASSWORD:-}" ] && [ -n "${APPLE_TEAM_ID:-}" ]; then
+  NOTARIZE=1
+else
+  warn "macOS: APPLE_ID / APPLE_PASSWORD / APPLE_TEAM_ID incomplete; signed but not notarized"
+fi
+
+echo "==> SoundCraft $VERSION for macOS ($ARCH), identity: $IDENTITY, notarize: $NOTARIZE"
+
+# ---- build -------------------------------------------------------------------------------------
+if [ "$SKIP_BUILD" = 0 ]; then
+  args=()
+  for t in "${TARGETS[@]}"; do args+=(--target "$t"); done
+  (cd "$ROOT" && cargo build --release --locked -p soundcraft -p soundcraft-cli "${args[@]}")
+fi
+
+rm -rf "$WORK"
+mkdir -p "$WORK/bin"
+for bin in soundcraft soundcraft-cli; do
+  inputs=()
+  for t in "${TARGETS[@]}"; do inputs+=("$CARGO_TARGET_DIR/$t/release/$bin"); done
+  lipo -create -output "$WORK/bin/$bin" "${inputs[@]}"
+  lipo -info "$WORK/bin/$bin"
+done
+
+# ---- signing helpers ---------------------------------------------------------------------------
+sign() {
+  # Hardened runtime + secure timestamp for a real identity; ad-hoc can't be timestamped.
+  local ts=(--timestamp)
+  [ "$IDENTITY" = "-" ] && ts=(--timestamp=none)
+  local kc=()
+  [ -n "${MACOS_KEYCHAIN:-}" ] && kc=(--keychain "$MACOS_KEYCHAIN")
+  codesign --force --sign "$IDENTITY" ${kc[@]+"${kc[@]}"} "${ts[@]}" "$@"
+}
+
+notarize() {
+  local file="$1" out id status
+  echo "==> notarizing $(basename "$file") (this can take a few minutes)"
+  out="$(xcrun notarytool submit "$file" --apple-id "$APPLE_ID" --password "$APPLE_PASSWORD" \
+    --team-id "$APPLE_TEAM_ID" --wait --timeout 1h --output-format json)" || true
+  echo "$out"
+  id="$(printf '%s' "$out" | plutil -extract id raw -o - - 2>/dev/null || true)"
+  status="$(printf '%s' "$out" | plutil -extract status raw -o - - 2>/dev/null || true)"
+  if [ "$status" != "Accepted" ]; then
+    if [ -n "$id" ]; then
+      xcrun notarytool log "$id" --apple-id "$APPLE_ID" --password "$APPLE_PASSWORD" --team-id "$APPLE_TEAM_ID" || true
+    fi
+    echo "error: notarization of $(basename "$file") failed (status: ${status:-unknown})" >&2
+    exit 1
+  fi
+}
+
+# ---- SoundCraft.app ----------------------------------------------------------------------------
+echo "==> assembling $APP"
+mkdir -p "$APP/Contents/MacOS" "$APP/Contents/Resources"
+# Executable and icon carry the display name (CFBundleExecutable / CFBundleIconFile).
+cp "$WORK/bin/soundcraft" "$APP/Contents/MacOS/SoundCraft"
+cp "$ROOT/assets/app-icon/soundcraft.icns" "$APP/Contents/Resources/SoundCraft.icns"
+sed -e "s/@VERSION@/$VERSION/g" -e "s/@SHORT_VERSION@/$SHORT_VERSION/g" \
+  -e "s/@BUILD_SHA@/${SOUNDCRAFT_BUILD_SHA:-unknown}/g" \
+  "$HERE/Info.plist.in" >"$APP/Contents/Info.plist"
+plutil -lint "$APP/Contents/Info.plist"
+printf 'APPL????' >"$APP/Contents/PkgInfo"
+
+# Sign inside-out: nested code first, then the bundle itself (no --deep on the final signature).
+# Today the only nested code is the main executable; frameworks/helpers would be signed here too.
+sign --options runtime --entitlements "$HERE/entitlements.plist" "$APP/Contents/MacOS/SoundCraft"
+sign --options runtime --entitlements "$HERE/entitlements.plist" "$APP"
+codesign --verify --strict --deep --verbose=2 "$APP"
+
+if [ "$NOTARIZE" = 1 ]; then
+  ditto -c -k --keepParent "$APP" "$WORK/SoundCraft-notarize.zip"
+  notarize "$WORK/SoundCraft-notarize.zip"
+  xcrun stapler staple "$APP"
+  xcrun stapler validate "$APP"
+  spctl --assess --type execute -vvv "$APP"
+fi
+
+# ---- DMG ---------------------------------------------------------------------------------------
+echo "==> building $DMG"
+STAGE="$WORK/dmg"
+mkdir -p "$STAGE"
+ditto "$APP" "$STAGE/SoundCraft.app"
+ln -s /Applications "$STAGE/Applications"
+rm -f "$DMG" "$WORK/raw.dmg"
+# makehybrid + convert builds the image without attaching a device, unlike `create -srcfolder`,
+# which is flaky on CI runners ("Resource busy") and hangs in sandboxed sessions.
+hdiutil makehybrid -hfs -hfs-volume-name "SoundCraft $VERSION" -hfs-openfolder "$STAGE" -o "$WORK/raw.dmg" "$STAGE"
+hdiutil convert "$WORK/raw.dmg" -format UDZO -imagekey zlib-level=9 -o "$DMG"
+rm -f "$WORK/raw.dmg"
+sign "$DMG"
+codesign --verify --strict --verbose=2 "$DMG"
+if [ "$NOTARIZE" = 1 ]; then
+  notarize "$DMG"
+  xcrun stapler staple "$DMG"
+  xcrun stapler validate "$DMG"
+  spctl --assess --type open --context context:primary-signature -vvv "$DMG"
+fi
+
+# ---- CLI ---------------------------------------------------------------------------------------
+echo "==> building $CLI_ZIP"
+CLI_DIR="$WORK/soundcraft-cli-$VERSION-macos-$ARCH"
+mkdir -p "$CLI_DIR"
+cp "$WORK/bin/soundcraft-cli" "$CLI_DIR/"
+copy_docs "$CLI_DIR"
+sign --options runtime "$CLI_DIR/soundcraft-cli"
+codesign --verify --strict --verbose=2 "$CLI_DIR/soundcraft-cli"
+rm -f "$CLI_ZIP"
+ditto -c -k --keepParent "$CLI_DIR" "$CLI_ZIP"
+# A bare Mach-O can't carry a stapled ticket; Gatekeeper looks the notarization up online.
+if [ "$NOTARIZE" = 1 ]; then notarize "$CLI_ZIP"; fi
+
+"$WORK/bin/soundcraft-cli" --version
+echo "==> done"
+ls -lh "$DMG" "$CLI_ZIP"
@@ -0,0 +1,16 @@
+# Apache (see HOSTING.md). Needs mod_mime; mod_deflate and mod_headers are optional.
+AddType application/wasm .wasm
+AddType text/javascript .js
+
+<IfModule mod_deflate.c>
+  AddOutputFilterByType DEFLATE application/wasm text/javascript text/html
+</IfModule>
+
+<IfModule mod_headers.c>
+  <FilesMatch "\.(wasm|js)$">
+    Header set Cache-Control "public, max-age=31536000, immutable"
+  </FilesMatch>
+  <FilesMatch "^index\.html$">
+    Header set Cache-Control "no-cache"
+  </FilesMatch>
+</IfModule>
@@ -0,0 +1,91 @@
+# Hosting SoundCraft for the web
+
+`soundcraft-web-<version>.zip` (from the GitHub release, or `packaging/web/package.sh`) holds a
+static site in `soundcraft-web-<version>/`:
+
+| File | What it is |
+|---|---|
+| `index.html` | The page. It loads everything through relative URLs. |
+| `soundcraft-web-<hash>.js` | wasm-bindgen glue (generated, ES module) |
+| `soundcraft-web-<hash>_bg.wasm` | The app (size: see the release; roughly a third of that with compression) |
+| `_headers`, `.htaccess` | Sample header rules for Netlify/Cloudflare Pages and Apache |
+
+There is no server-side code. Upload the folder's contents anywhere that serves static files.
+
+## Any path works
+
+All URLs in `index.html` are relative (`public_url = "./"` in `apps/soundcraft-web/Trunk.toml`),
+so the site works at a domain root (`https://example.com/`), under a prefix
+(`https://example.com/tools/soundcraft/`) and from a CDN bucket. The asset names carry a content
+hash, so they can be cached forever. Only `index.html` needs revalidation.
+
+## Required server settings
+
+- **MIME type:** serve `.wasm` as `application/wasm`. Browsers refuse to stream-compile it under
+  any other type, and the app then loads slowly or not at all. Serve `.js` as `text/javascript`.
+  Most hosts already do both. For nginx, check that `mime.types` has `application/wasm wasm;`.
+- **Compression:** turn on gzip or Brotli for `.wasm`, `.js` and `.html`. That takes the
+  download to roughly a third. You can also precompress (`brotli -k *.wasm`) and let
+  the server send `Content-Encoding: br`.
+- **Caching:** `Cache-Control: public, max-age=31536000, immutable` on the hashed `.wasm` and
+  `.js` files, and `no-cache` on `index.html`.
+- **HTTPS:** WebGPU (and the clipboard) only work in a secure context, which means `https://`
+  or `http://localhost`. Over plain HTTP elsewhere, the app falls back to WebGL2.
+- **No special isolation headers:** SoundCraft plays audio through WebAudio without `SharedArrayBuffer`, so it doesn't
+  need `Cross-Origin-Opener-Policy` or `Cross-Origin-Embedder-Policy`. If your site already sends
+  COEP `require-corp`, also send `Cross-Origin-Resource-Policy: same-origin` (or `cross-origin`
+  when the files live on a CDN) on the app's files.
+
+nginx example:
+
+```nginx
+location /soundcraft/ {
+    types { application/wasm wasm; text/javascript js; text/html html; }
+    gzip on;
+    gzip_types application/wasm text/javascript text/html;
+    location ~* \.(wasm|js)$ { add_header Cache-Control "public, max-age=31536000, immutable"; }
+    location ~* index\.html$ { add_header Cache-Control "no-cache"; }
+}
+```
+
+Local test: `python3 -m http.server 8765` inside the folder, then open http://localhost:8765/.
+
+## Embedding in a page (iframe)
+
+```html
+<iframe
+  src="https://example.com/soundcraft/"
+  title="SoundCraft"
+  style="width: 100%; height: 720px; border: 0;"
+  allow="fullscreen; autoplay; clipboard-read; clipboard-write"
+  allowfullscreen>
+</iframe>
+```
+
+- The app fills the iframe and follows its size, so size the iframe and not the app.
+- Keyboard shortcuts go to the iframe after the user clicks into it, as with any embedded app.
+- **Sandboxed iframes** need at least
+  `sandbox="allow-scripts allow-same-origin"`.
+- Don't send `X-Frame-Options: DENY` or a `frame-ancestors` CSP that excludes the embedding page.
+
+## Renderer selection and fallback flags
+
+SoundCraft renders with wgpu. It uses **WebGPU** when the browser has it and falls back to
+**WebGL2** on its own. URL query flags override this, and they work on the iframe `src` too:
+
+| Flag | Effect |
+|---|---|
+| *(none)* | WebGPU if available, otherwise WebGL2 |
+| `?webgl` | Force the WebGL2 backend (useful when a WebGPU driver misbehaves) |
+| `?empty` | Start with an empty session instead of the synthesised demo session |
+
+For example: `<iframe src="https://example.com/soundcraft/?webgl" ...>`.
+
+A browser with neither WebGPU nor WebGL2 gets a message in place of the app.
+
+## Audio
+
+Playback goes through WebAudio. Browsers only start an `AudioContext` after a user gesture, so
+the first click or key press in the page may be needed before sound is heard. In an iframe,
+`allow="autoplay"` lets the embedding page grant that up front. The web build has no recording,
+no native file dialogs and no control channel; it opens the synthesised demo session.
@@ -0,0 +1,13 @@
+# Netlify / Cloudflare Pages header rules (see HOSTING.md). Other hosts: set the same headers.
+/*
+  X-Content-Type-Options: nosniff
+
+/*.wasm
+  Content-Type: application/wasm
+  Cache-Control: public, max-age=31536000, immutable
+
+/*.js
+  Cache-Control: public, max-age=31536000, immutable
+
+/index.html
+  Cache-Control: no-cache
@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+# Build the browser version and zip it:  $DIST/soundcraft-web-<version>.zip
+#
+# Usage: packaging/web/package.sh [--skip-build]
+#
+# Needs: trunk (brew install trunk / cargo install trunk --locked) and the wasm32-unknown-unknown
+# target. The zip holds a self-contained static site in soundcraft-web-<version>/ that works
+# from any URL path and inside an <iframe>. Hosting notes: packaging/web/README.md.
+set -euo pipefail
+# shellcheck source=../env.sh
+. "$(dirname "${BASH_SOURCE[0]}")/../env.sh"
+HERE="$ROOT/packaging/web"
+
+if [ "${1:-}" != "--skip-build" ]; then
+  command -v trunk >/dev/null || { echo "error: trunk not found (cargo install trunk --locked)" >&2; exit 1; }
+  (cd "$ROOT/apps/soundcraft-web" && trunk build --release)
+fi
+
+SITE="$ROOT/dist/web"
+[ -f "$SITE/index.html" ] || { echo "error: $SITE/index.html missing; run without --skip-build" >&2; exit 1; }
+# Paths must be relative so the site works under any prefix (public_url = "./" in Trunk.toml).
+if grep -Eq '(src|href)="/[^/]' "$SITE/index.html"; then
+  echo "error: $SITE/index.html has root-absolute URLs; it would break when served from a sub-path" >&2
+  exit 1
+fi
+
+NAME="soundcraft-web-$VERSION"
+WORK="$CARGO_TARGET_DIR/web-package"
+rm -rf "$WORK"
+mkdir -p "$WORK/$NAME"
+cp -R "$SITE/." "$WORK/$NAME/"
+# Sample server configs (MIME type, caching, compression); harmless where unused.
+cp "$HERE/_headers" "$HERE/.htaccess" "$WORK/$NAME/"
+cp "$HERE/README.md" "$WORK/$NAME/HOSTING.md"
+copy_docs "$WORK/$NAME"
+rm -f "$DIST/$NAME.zip"
+(cd "$WORK" && zip -qr9 "$DIST/$NAME.zip" "$NAME")
+echo "wrote $DIST/$NAME.zip"
+ls -lh "$DIST/$NAME.zip"
@@ -0,0 +1,125 @@
+<#
+.SYNOPSIS
+  Build, sign and package SoundCraft for Windows.
+
+.DESCRIPTION
+  Produces, in $env:DIST (default: dist/release):
+    soundcraft-<version>-windows-<arch>.msi            per-machine installer (WiX v5)
+    soundcraft-<version>-windows-<arch>-portable.zip   soundcraft.exe + soundcraft-cli.exe
+
+  The binaries link the C runtime statically (+crt-static), so neither the MSI nor the portable
+  zip needs the Visual C++ redistributable. Signing is delegated to sign.ps1 (skipped with a
+  warning when no signing secrets are set).
+
+  Needs: Rust (MSVC toolchain + the target), the Windows SDK (rc.exe, signtool.exe),
+  and WiX v5: dotnet tool install --global wix --version 5.0.2
+
+.EXAMPLE
+  pwsh packaging/windows/package.ps1 -Arch x64
+  pwsh packaging/windows/package.ps1 -Arch x86 -SkipBuild
+  pwsh packaging/windows/package.ps1 -Arch arm64     # cross-compiled; needs the MSVC ARM64 build tools
+#>
+param(
+  [ValidateSet('x64', 'x86', 'arm64')] [string] $Arch = 'x64',
+  [switch] $SkipBuild
+)
+$ErrorActionPreference = 'Stop'
+$Root = (Resolve-Path (Join-Path $PSScriptRoot '..\..')).Path
+
+function Invoke-Native([string] $What, [scriptblock] $Block) {
+  Write-Output "==> $What"
+  & $Block
+  if ($LASTEXITCODE -ne 0) { throw "$What failed with exit code $LASTEXITCODE" }
+}
+
+# The version lives in one place: [workspace.package] version in the root Cargo.toml.
+$Version = $env:SOUNDCRAFT_VERSION
+if (-not $Version) {
+  $inPkg = $false
+  foreach ($line in Get-Content (Join-Path $Root 'Cargo.toml')) {
+    if ($line -match '^\s*\[') { $inPkg = ($line.Trim() -eq '[workspace.package]'); continue }
+    if ($inPkg -and $line -match '^\s*version\s*=\s*"([^"]+)"') { $Version = $Matches[1]; break }
+  }
+}
+if (-not $Version) { throw 'could not read [workspace.package] version from Cargo.toml' }
+# MSI ProductVersion is numeric (major.minor.build); pre-release tags are dropped there.
+$MsiVersion = ($Version -split '-')[0]
+
+$Target = switch ($Arch) { 'x64' { 'x86_64-pc-windows-msvc' } 'x86' { 'i686-pc-windows-msvc' } 'arm64' { 'aarch64-pc-windows-msvc' } }
+$Dist = if ($env:DIST) { $env:DIST } else { Join-Path $Root 'dist\release' }
+$TargetDir = if ($env:CARGO_TARGET_DIR) { $env:CARGO_TARGET_DIR } else { Join-Path $Root 'target' }
+New-Item -ItemType Directory -Force -Path $Dist | Out-Null
+
+if (-not $env:SOUNDCRAFT_BUILD_SHA) { $env:SOUNDCRAFT_BUILD_SHA = (git -C $Root rev-parse HEAD 2>$null) }
+if (-not $env:SOUNDCRAFT_BUILD_DATE) { $env:SOUNDCRAFT_BUILD_DATE = (Get-Date).ToUniversalTime().ToString('yyyy-MM-dd') }
+
+Write-Output "SoundCraft $Version for Windows $Arch ($Target)"
+
+if (-not $SkipBuild) {
+  # Static CRT: no VC++ redistributable needed. Scoped to the target so host build scripts and
+  # proc-macros are unaffected.
+  $flagVar = 'CARGO_TARGET_' + ($Target.ToUpper() -replace '-', '_') + '_RUSTFLAGS'
+  [Environment]::SetEnvironmentVariable($flagVar, '-C target-feature=+crt-static')
+  # Fail the build (rather than warn) if the icon/VERSIONINFO can't be embedded.
+  $env:SOUNDCRAFT_REQUIRE_WINRES = '1'
+  Invoke-Native "cargo build ($Target)" { cargo build --release --locked -p soundcraft -p soundcraft-cli --target $Target }
+}
+
+$Bin = Join-Path $TargetDir "$Target\release"
+
+# Check both binaries' PE headers before packaging. Machine (COFF header) must match -Arch, so an
+# x64 build can never ship labelled arm64. Subsystem (optional header): 2 = Windows GUI, 3 = console.
+# The app must be GUI (no console window opens with it); the CLI must stay console so its output
+# reaches the terminal.
+function Get-PeHeader([string] $Path) {
+  $bytes = [System.IO.File]::ReadAllBytes($Path)
+  $pe = [BitConverter]::ToInt32($bytes, 0x3C)
+  return @{ Machine = [BitConverter]::ToUInt16($bytes, $pe + 4); Subsystem = [BitConverter]::ToUInt16($bytes, $pe + 0x5C) }
+}
+$Machine = switch ($Arch) { 'x64' { 0x8664 } 'x86' { 0x14C } 'arm64' { 0xAA64 } }
+foreach ($check in @(@('soundcraft.exe', 2), @('soundcraft-cli.exe', 3))) {
+  $h = Get-PeHeader (Join-Path $Bin $check[0])
+  if ($h.Machine -ne $Machine) { throw "$($check[0]) is for machine 0x$('{0:X}' -f $h.Machine), expected 0x$('{0:X}' -f $Machine) ($Arch)" }
+  if ($h.Subsystem -ne $check[1]) { throw "$($check[0]) has PE subsystem $($h.Subsystem), expected $($check[1])" }
+  Write-Output "ok $($check[0]): $Arch, PE subsystem $($h.Subsystem)"
+}
+$Stage = Join-Path $TargetDir "windows-package\$Arch"
+Remove-Item -Recurse -Force $Stage -ErrorAction SilentlyContinue
+New-Item -ItemType Directory -Force -Path $Stage | Out-Null
+Copy-Item (Join-Path $Bin 'soundcraft.exe'), (Join-Path $Bin 'soundcraft-cli.exe') $Stage
+
+& (Join-Path $PSScriptRoot 'sign.ps1') (Join-Path $Stage 'soundcraft.exe') (Join-Path $Stage 'soundcraft-cli.exe')
+
+# ---- MSI ---------------------------------------------------------------------------------------
+$Msi = Join-Path $Dist "soundcraft-$Version-windows-$Arch.msi"
+Invoke-Native 'wix build' {
+  wix build (Join-Path $PSScriptRoot 'soundcraft.wxs') -arch $Arch `
+    -d "Version=$MsiVersion" -d "BinDir=$Stage" -d "IconPath=$(Join-Path $Root 'assets\app-icon\soundcraft.ico')" `
+    -o $Msi
+}
+# wix writes its debug symbols (.wixpdb) next to the MSI; keep them out of the release assets.
+Remove-Item -Force -ErrorAction SilentlyContinue ([IO.Path]::ChangeExtension($Msi, '.wixpdb'))
+& (Join-Path $PSScriptRoot 'sign.ps1') $Msi
+
+# ---- portable zip ------------------------------------------------------------------------------
+$Portable = Join-Path $TargetDir "windows-package\soundcraft-$Version-windows-$Arch-portable"
+Remove-Item -Recurse -Force $Portable -ErrorAction SilentlyContinue
+New-Item -ItemType Directory -Force -Path $Portable | Out-Null
+Copy-Item (Join-Path $Stage '*.exe') $Portable
+foreach ($f in 'README.md', 'LICENSE', 'LICENSE-MIT', 'LICENSE-APACHE', 'NOTICE', 'ATTRIBUTION.md') {
+  $p = Join-Path $Root $f
+  if (Test-Path $p) { Copy-Item $p $Portable }
+}
+$Zip = Join-Path $Dist "soundcraft-$Version-windows-$Arch-portable.zip"
+Remove-Item -Force $Zip -ErrorAction SilentlyContinue
+Compress-Archive -Path $Portable -DestinationPath $Zip
+
+# Smoke-test the CLI when this machine can run it. An ARM64 build made on an x64 runner can't run
+# here; .github/workflows/windows-arm64.yml installs and runs it on ARM64 instead.
+$HostArch = [System.Runtime.InteropServices.RuntimeInformation]::OSArchitecture.ToString().ToLowerInvariant()
+if ($Arch -ne 'arm64' -or $HostArch -eq 'arm64') {
+  Invoke-Native 'soundcraft-cli --version' { & (Join-Path $Stage 'soundcraft-cli.exe') --version }
+} else {
+  Write-Output "skipping soundcraft-cli --version: an $Arch build doesn't run on this $HostArch machine"
+}
+Get-Item $Msi, $Zip | Format-Table Name, Length
@@ -0,0 +1,95 @@
+<#
+.SYNOPSIS
+  Authenticode-sign files with signtool, using whichever signing material is configured.
+
+.DESCRIPTION
+  Tries, in order:
+    1. A code-signing certificate file:   WINDOWS_CERTIFICATE (base64 .pfx), WINDOWS_CERTIFICATE_PASSWORD
+    2. Azure Trusted Signing:             AZURE_TENANT_ID, AZURE_CLIENT_ID, AZURE_CLIENT_SECRET,
+                                          AZURE_SIGNING_ENDPOINT (e.g. https://eus.codesigning.azure.net),
+                                          AZURE_SIGNING_ACCOUNT, AZURE_CERT_PROFILE
+  With neither, it prints a warning and leaves the files unsigned (exit code 0), so test builds
+  still produce installers.
+
+  This is the one place to adapt when the signing setup changes (an HSM/cloud key, a different
+  timestamp server, ...). Optional overrides: WINDOWS_TIMESTAMP_URL, SIGNTOOL (path to signtool.exe).
+
+.EXAMPLE
+  pwsh packaging/windows/sign.ps1 dist/soundcraft.exe dist/soundcraft.msi
+#>
+param(
+  [Parameter(Mandatory = $true, ValueFromRemainingArguments = $true)]
+  [string[]] $Files
+)
+$ErrorActionPreference = 'Stop'
+
+function Write-Warn([string] $Message) {
+  if ($env:GITHUB_ACTIONS) { Write-Output "::warning::$Message" } else { Write-Warning $Message }
+}
+
+function Find-SignTool {
+  if ($env:SIGNTOOL) { return $env:SIGNTOOL }
+  $onPath = Get-Command signtool.exe -ErrorAction SilentlyContinue
+  if ($onPath) { return $onPath.Source }
+  $kits = Join-Path ${env:ProgramFiles(x86)} 'Windows Kits\10\bin'
+  $found = Get-ChildItem -Path $kits -Recurse -Filter signtool.exe -ErrorAction SilentlyContinue |
+    Where-Object { $_.FullName -match '\\x64\\signtool\.exe$' } |
+    Sort-Object FullName -Descending | Select-Object -First 1
+  if (-not $found) { throw 'signtool.exe not found (install the Windows SDK)' }
+  return $found.FullName
+}
+
+function Invoke-SignTool([string[]] $Arguments) {
+  & $script:SignTool @Arguments
+  if ($LASTEXITCODE -ne 0) { throw "signtool $($Arguments[0]) failed with exit code $LASTEXITCODE" }
+}
+
+$Files = $Files | ForEach-Object { (Resolve-Path $_).Path }
+$haveCert = [bool]$env:WINDOWS_CERTIFICATE
+$azureVars = 'AZURE_TENANT_ID', 'AZURE_CLIENT_ID', 'AZURE_CLIENT_SECRET', 'AZURE_SIGNING_ENDPOINT', 'AZURE_SIGNING_ACCOUNT', 'AZURE_CERT_PROFILE'
+$haveAzure = -not ($azureVars | Where-Object { -not [Environment]::GetEnvironmentVariable($_) })
+
+if (-not $haveCert -and -not $haveAzure) {
+  Write-Warn "Windows signing secrets not set (WINDOWS_CERTIFICATE or AZURE_*): leaving unsigned: $($Files -join ', ')"
+  exit 0
+}
+
+$script:SignTool = Find-SignTool
+$common = @('sign', '/v', '/fd', 'SHA256', '/td', 'SHA256', '/d', 'SoundCraft', '/du', 'https://github.com/storytold/soundcraft')
+$tmp = Join-Path ([IO.Path]::GetTempPath()) "soundcraft-sign-$PID"
+New-Item -ItemType Directory -Force -Path $tmp | Out-Null
+
+try {
+  if ($haveCert) {
+    Write-Output "Signing with WINDOWS_CERTIFICATE: $($Files -join ', ')"
+    $pfx = Join-Path $tmp 'cert.pfx'
+    [IO.File]::WriteAllBytes($pfx, [Convert]::FromBase64String($env:WINDOWS_CERTIFICATE))
+    $ts = if ($env:WINDOWS_TIMESTAMP_URL) { $env:WINDOWS_TIMESTAMP_URL } else { 'http://timestamp.digicert.com' }
+    $signArgs = $common + @('/tr', $ts, '/f', $pfx)
+    if ($env:WINDOWS_CERTIFICATE_PASSWORD) { $signArgs += @('/p', $env:WINDOWS_CERTIFICATE_PASSWORD) }
+    Invoke-SignTool ($signArgs + $Files)
+  }
+  else {
+    Write-Output "Signing with Azure Trusted Signing ($env:AZURE_SIGNING_ACCOUNT / $env:AZURE_CERT_PROFILE): $($Files -join ', ')"
+    # The dlib authenticates with DefaultAzureCredential, which reads AZURE_TENANT_ID,
+    # AZURE_CLIENT_ID and AZURE_CLIENT_SECRET from the environment.
+    $pkg = Join-Path $tmp 'trusted-signing.zip'
+    Invoke-WebRequest -Uri 'https://www.nuget.org/api/v2/package/Microsoft.Trusted.Signing.Client' -OutFile $pkg
+    Expand-Archive -Path $pkg -DestinationPath (Join-Path $tmp 'client') -Force
+    $dlib = Get-ChildItem -Path (Join-Path $tmp 'client') -Recurse -Filter Azure.CodeSigning.Dlib.dll |
+      Where-Object { $_.FullName -match '\\x64\\' } | Select-Object -First 1
+    if (-not $dlib) { throw 'Azure.CodeSigning.Dlib.dll not found in Microsoft.Trusted.Signing.Client' }
+    $metadata = Join-Path $tmp 'metadata.json'
+    @{
+      Endpoint               = $env:AZURE_SIGNING_ENDPOINT
+      CodeSigningAccountName = $env:AZURE_SIGNING_ACCOUNT
+      CertificateProfileName = $env:AZURE_CERT_PROFILE
+    } | ConvertTo-Json | Set-Content -Path $metadata -Encoding utf8
+    $ts = if ($env:WINDOWS_TIMESTAMP_URL) { $env:WINDOWS_TIMESTAMP_URL } else { 'http://timestamp.acs.microsoft.com' }
+    Invoke-SignTool ($common + @('/tr', $ts, '/dlib', $dlib.FullName, '/dmdf', $metadata) + $Files)
+  }
+  Invoke-SignTool (@('verify', '/pa', '/v') + $Files)
+}
+finally {
+  Remove-Item -Recurse -Force $tmp -ErrorAction SilentlyContinue
+}
@@ -0,0 +1,91 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  SoundCraft MSI (WiX Toolset v5: `dotnet tool install -g wix`). Built by package.ps1:
+
+    wix build soundcraft.wxs -arch x64 -d Version=1.2.3 -d BinDir=... -d IconPath=... -o out.msi
+
+  Per-machine install into Program Files, a Start Menu shortcut, `.scraft` sessions owned by
+  SoundCraft, and SoundCraft offered under "Open with" for WAV/AIFF/FLAC/MP3 and MIDI files
+  (without taking over the user's default player for them).
+-->
+<Wix xmlns="http://wixtoolset.org/schemas/v4/wxs">
+  <Package
+      Name="SoundCraft"
+      Manufacturer="Learning Machines LLC"
+      Version="$(var.Version)"
+      UpgradeCode="EE53D3E5-D0AE-40F9-808D-9417FDEBF61A"
+      Scope="perMachine"
+      Compressed="yes"
+      Language="1033">
+    <SummaryInformation Description="SoundCraft digital audio workstation" Manufacturer="Learning Machines LLC" />
+    <!-- Same-version upgrades let successive pre-releases of one X.Y.Z replace each other
+         (MSI versions are numeric, so 1.2.3-rc.1 and 1.2.3-rc.2 are both 1.2.3). -->
+    <MajorUpgrade AllowSameVersionUpgrades="yes"
+        DowngradeErrorMessage="A newer version of SoundCraft is already installed." />
+    <MediaTemplate EmbedCab="yes" CompressionLevel="high" />
+
+    <Icon Id="SoundcraftIcon.ico" SourceFile="$(var.IconPath)" />
+    <Property Id="ARPPRODUCTICON" Value="SoundcraftIcon.ico" />
+    <Property Id="ARPURLINFOABOUT" Value="https://getartcraft.com/apps/soundcraft" />
+    <Property Id="ARPURLUPDATEINFO" Value="https://getartcraft.com/apps/soundcraft" />
+    <Property Id="ARPHELPLINK" Value="https://discord.gg/artcraft" />
+
+    <StandardDirectory Id="ProgramFiles6432Folder">
+      <Directory Id="INSTALLFOLDER" Name="SoundCraft" />
+    </StandardDirectory>
+    <StandardDirectory Id="ProgramMenuFolder" />
+
+    <Feature Id="Main" Title="SoundCraft" Level="1">
+      <ComponentGroupRef Id="SoundcraftFiles" />
+    </Feature>
+  </Package>
+
+  <Fragment>
+    <ComponentGroup Id="SoundcraftFiles" Directory="INSTALLFOLDER">
+      <Component Id="SoundcraftApp" Guid="091136D7-205E-41A8-9D27-5E231F7CBBD4">
+        <File Id="SoundcraftExe" Source="$(var.BinDir)\soundcraft.exe" KeyPath="yes">
+          <Shortcut Id="StartMenuShortcut" Directory="ProgramMenuFolder" Name="SoundCraft"
+              Description="SoundCraft digital audio workstation" WorkingDirectory="INSTALLFOLDER" Advertise="yes"
+              Icon="SoundcraftIcon.ico" IconIndex="0" />
+        </File>
+
+        <!-- .scraft: SoundCraft's own session format; SoundCraft is its default app. -->
+        <ProgId Id="SoundCraft.Session" Description="SoundCraft Session" Icon="SoundcraftExe" IconIndex="0">
+          <Extension Id="scraft" ContentType="application/x-soundcraft-session">
+            <Verb Id="open" Command="Open" TargetFile="SoundcraftExe" Argument="&quot;%1&quot;" />
+          </Extension>
+        </ProgId>
+        <!-- Audio and MIDI files: offered under "Open with" (imported into a session), never forced
+             as the default. -->
+        <ProgId Id="SoundCraft.Audio" Description="Audio File" Icon="SoundcraftExe" IconIndex="0" />
+        <RegistryValue Root="HKLM" Key="Software\Classes\SoundCraft.Audio\shell\open\command" Value="&quot;[#SoundcraftExe]&quot; &quot;%1&quot;" Type="string" />
+        <ProgId Id="SoundCraft.Midi" Description="MIDI File" Icon="SoundcraftExe" IconIndex="0" />
+        <RegistryValue Root="HKLM" Key="Software\Classes\SoundCraft.Midi\shell\open\command" Value="&quot;[#SoundcraftExe]&quot; &quot;%1&quot;" Type="string" />
+        <RegistryValue Root="HKLM" Key="Software\Classes\.wav\OpenWithProgids" Name="SoundCraft.Audio" Value="" Type="string" />
+        <RegistryValue Root="HKLM" Key="Software\Classes\.aif\OpenWithProgids" Name="SoundCraft.Audio" Value="" Type="string" />
+        <RegistryValue Root="HKLM" Key="Software\Classes\.aiff\OpenWithProgids" Name="SoundCraft.Audio" Value="" Type="string" />
+        <RegistryValue Root="HKLM" Key="Software\Classes\.flac\OpenWithProgids" Name="SoundCraft.Audio" Value="" Type="string" />
+        <RegistryValue Root="HKLM" Key="Software\Classes\.mp3\OpenWithProgids" Name="SoundCraft.Audio" Value="" Type="string" />
+        <RegistryValue Root="HKLM" Key="Software\Classes\.mid\OpenWithProgids" Name="SoundCraft.Midi" Value="" Type="string" />
+        <RegistryValue Root="HKLM" Key="Software\Classes\.midi\OpenWithProgids" Name="SoundCraft.Midi" Value="" Type="string" />
+
+        <!-- "Open with" app list and the Run dialog (Win+R "soundcraft"). -->
+        <RegistryValue Root="HKLM" Key="Software\Classes\Applications\soundcraft.exe" Name="FriendlyAppName" Value="SoundCraft" Type="string" />
+        <RegistryValue Root="HKLM" Key="Software\Classes\Applications\soundcraft.exe\shell\open\command" Value="&quot;[#SoundcraftExe]&quot; &quot;%1&quot;" Type="string" />
+        <RegistryValue Root="HKLM" Key="Software\Classes\Applications\soundcraft.exe\SupportedTypes" Name=".scraft" Value="" Type="string" />
+        <RegistryValue Root="HKLM" Key="Software\Classes\Applications\soundcraft.exe\SupportedTypes" Name=".wav" Value="" Type="string" />
+        <RegistryValue Root="HKLM" Key="Software\Classes\Applications\soundcraft.exe\SupportedTypes" Name=".aif" Value="" Type="string" />
+        <RegistryValue Root="HKLM" Key="Software\Classes\Applications\soundcraft.exe\SupportedTypes" Name=".aiff" Value="" Type="string" />
+        <RegistryValue Root="HKLM" Key="Software\Classes\Applications\soundcraft.exe\SupportedTypes" Name=".flac" Value="" Type="string" />
+        <RegistryValue Root="HKLM" Key="Software\Classes\Applications\soundcraft.exe\SupportedTypes" Name=".mp3" Value="" Type="string" />
+        <RegistryValue Root="HKLM" Key="Software\Classes\Applications\soundcraft.exe\SupportedTypes" Name=".mid" Value="" Type="string" />
+        <RegistryValue Root="HKLM" Key="Software\Classes\Applications\soundcraft.exe\SupportedTypes" Name=".midi" Value="" Type="string" />
+        <RegistryValue Root="HKLM" Key="Software\Microsoft\Windows\CurrentVersion\App Paths\soundcraft.exe" Value="[#SoundcraftExe]" Type="string" />
+      </Component>
+
+      <Component Id="SoundcraftCli" Guid="4552049A-C2F0-4AB0-BAE6-A62C3348F4B4">
+        <File Id="SoundcraftCliExe" Source="$(var.BinDir)\soundcraft-cli.exe" KeyPath="yes" />
+      </Component>
+    </ComponentGroup>
+  </Fragment>
+</Wix>
@@ -0,0 +1,106 @@
+//! `cargo xtask ico <out.ico> <in.png>…`: pack PNG images into a Windows `.ico`.
+//!
+//! Vista and later read PNG-compressed icon entries, so each PNG is stored as is. The size comes
+//! from the PNG's IHDR chunk; 256 px is written as 0, per the ICO format.
+
+use std::path::Path;
+
+/// Width and height from a PNG's IHDR chunk.
+pub fn png_size(png: &[u8]) -> Result<(u32, u32), String> {
+    const SIG: &[u8] = b"\x89PNG\r\n\x1a\n";
+    if png.len() < 24 || &png[..8] != SIG || &png[12..16] != b"IHDR" {
+        return Err("not a PNG file".into());
+    }
+    let w = u32::from_be_bytes([png[16], png[17], png[18], png[19]]);
+    let h = u32::from_be_bytes([png[20], png[21], png[22], png[23]]);
+    Ok((w, h))
+}
+
+/// An ICO file holding `pngs`, which must be square and at most 256 px.
+pub fn pack(pngs: &[Vec<u8>]) -> Result<Vec<u8>, String> {
+    if pngs.is_empty() || pngs.len() > u16::MAX as usize {
+        return Err("need at least one PNG".into());
+    }
+    let mut out = Vec::new();
+    out.extend_from_slice(&0u16.to_le_bytes()); // reserved
+    out.extend_from_slice(&1u16.to_le_bytes()); // type: icon
+    out.extend_from_slice(&(pngs.len() as u16).to_le_bytes());
+    let mut offset = 6 + 16 * pngs.len();
+    for png in pngs {
+        let (w, h) = png_size(png)?;
+        if w != h || w == 0 || w > 256 {
+            return Err(format!("icon images must be square and at most 256 px, got {w}x{h}"));
+        }
+        let dim = if w == 256 { 0 } else { w as u8 };
+        out.extend_from_slice(&[dim, dim, 0, 0]); // width, height, palette size, reserved
+        out.extend_from_slice(&1u16.to_le_bytes()); // colour planes
+        out.extend_from_slice(&32u16.to_le_bytes()); // bits per pixel
+        out.extend_from_slice(&(png.len() as u32).to_le_bytes());
+        out.extend_from_slice(&(offset as u32).to_le_bytes());
+        offset += png.len();
+    }
+    for png in pngs {
+        out.extend_from_slice(png);
+    }
+    Ok(out)
+}
+
+/// `cargo xtask ico <out.ico> <in.png>…`; `args` are the words after `ico`.
+pub fn run(args: &[String]) -> Result<(), String> {
+    let [out, inputs @ ..] = args else {
+        return Err("usage: cargo xtask ico <out.ico> <in.png>…".into());
+    };
+    let pngs = inputs.iter().map(|p| std::fs::read(p).map_err(|e| format!("read {p}: {e}"))).collect::<Result<Vec<_>, _>>()?;
+    let ico = pack(&pngs)?;
+    std::fs::write(Path::new(out), &ico).map_err(|e| format!("write {out}: {e}"))?;
+    println!("{out}: {} images, {} bytes", pngs.len(), ico.len());
+    Ok(())
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    fn fake_png(size: u32) -> Vec<u8> {
+        let mut v = b"\x89PNG\r\n\x1a\n\0\0\0\x0dIHDR".to_vec();
+        v.extend_from_slice(&size.to_be_bytes());
+        v.extend_from_slice(&size.to_be_bytes());
+        v.extend_from_slice(&[8, 6, 0, 0, 0, 1, 2, 3, 4]);
+        v
+    }
+
+    #[test]
+    fn packs_directory_and_payloads() {
+        let a = fake_png(16);
+        let b = fake_png(256);
+        let ico = pack(&[a.clone(), b.clone()]).unwrap();
+        assert_eq!(&ico[..6], &[0, 0, 1, 0, 2, 0]);
+        // Entry 0: 16 px at offset 6 + 32.
+        assert_eq!(&ico[6..8], &[16, 16]);
+        assert_eq!(u32::from_le_bytes(ico[14..18].try_into().unwrap()), a.len() as u32);
+        assert_eq!(u32::from_le_bytes(ico[18..22].try_into().unwrap()), 38);
+        // Entry 1: 256 px stored as 0, right after the first payload.
+        assert_eq!(&ico[22..24], &[0, 0]);
+        assert_eq!(u32::from_le_bytes(ico[34..38].try_into().unwrap()), 38 + a.len() as u32);
+        assert_eq!(&ico[38..38 + a.len()], &a[..]);
+        assert_eq!(&ico[38 + a.len()..], &b[..]);
+    }
+
+    #[test]
+    fn rejects_bad_input() {
+        assert!(pack(&[]).is_err());
+        assert!(pack(&[fake_png(512)]).is_err());
+        assert!(pack(&[b"GIF89a".to_vec()]).is_err());
+        assert_eq!(png_size(&fake_png(48)).unwrap(), (48, 48));
+    }
+
+    #[test]
+    fn committed_icon_is_valid() {
+        let root = Path::new(env!("CARGO_MANIFEST_DIR")).parent().unwrap_or(Path::new("."));
+        let path = root.join("assets/app-icon/soundcraft.ico");
+        let Ok(ico) = std::fs::read(&path) else { return };
+        assert_eq!(&ico[..4], &[0, 0, 1, 0]);
+        let n = u16::from_le_bytes([ico[4], ico[5]]) as usize;
+        assert!(n >= 4, "expected several sizes in {}", path.display());
+    }
+}
@@ -1,5 +1,8 @@
 //! `cargo xtask <ci|layers|assets|parity|wasm>` — repository gates.

+mod ico;
+mod version;
+
 use std::path::{Path, PathBuf};
 use std::process::{Command, ExitCode};

@@ -149,6 +152,8 @@ fn main() -> ExitCode {
        Some("assets") => assets(),
        Some("parity") => parity(),
        Some("wasm") => wasm(),
+        Some("version") => version::run(args.get(1..).unwrap_or(&[])),
+        Some("ico") => ico::run(args.get(1..).unwrap_or(&[])),
        _ => Err("usage: cargo xtask <ci|layers|assets|parity|wasm|version>".into()),
    };
    match r {
@@ -0,0 +1,168 @@
+//! `cargo xtask version [set X.Y.Z[-pre]]`: the workspace version, the single source of truth.
+//!
+//! The version lives in `[workspace.package] version` in the root `Cargo.toml`; every crate
+//! inherits it with `version.workspace = true`, and the packaging scripts read it from here.
+
+use std::path::{Path, PathBuf};
+use std::process::Command;
+
+/// The `version = "…"` value inside `[workspace.package]`.
+pub fn read(manifest: &str) -> Result<String, String> {
+    let (_, line) = find_line(manifest)?;
+    let v = line.split_once('=').map(|(_, v)| v.trim().trim_matches('"').to_string()).unwrap_or_default();
+    if v.is_empty() {
+        return Err("empty [workspace.package] version".into());
+    }
+    Ok(v)
+}
+
+/// `manifest` with the workspace version replaced; everything else is byte-for-byte unchanged.
+pub fn replace(manifest: &str, new: &str) -> Result<String, String> {
+    validate(new)?;
+    let (idx, _) = find_line(manifest)?;
+    let mut out = String::with_capacity(manifest.len() + 8);
+    for (i, line) in manifest.split_inclusive('\n').enumerate() {
+        if i == idx {
+            let eol = if line.ends_with("\r\n") {
+                "\r\n"
+            } else if line.ends_with('\n') {
+                "\n"
+            } else {
+                ""
+            };
+            out.push_str(&format!("version = \"{new}\"{eol}"));
+        } else {
+            out.push_str(line);
+        }
+    }
+    Ok(out)
+}
+
+/// Semver without build metadata: `MAJOR.MINOR.PATCH` plus an optional `-pre.release` tag.
+pub fn validate(v: &str) -> Result<(), String> {
+    let bad = || Err(format!("`{v}` is not a version like 1.2.3 or 1.2.3-rc.1"));
+    let (core, pre) = match v.split_once('-') {
+        Some((c, p)) => (c, Some(p)),
+        None => (v, None),
+    };
+    let nums: Vec<&str> = core.split('.').collect();
+    if nums.len() != 3 || nums.iter().any(|n| n.is_empty() || !n.bytes().all(|b| b.is_ascii_digit()) || (n.len() > 1 && n.starts_with('0'))) {
+        return bad();
+    }
+    if let Some(p) = pre
+        && (p.is_empty() || p.split('.').any(|id| id.is_empty() || !id.bytes().all(|b| b.is_ascii_alphanumeric() || b == b'-')))
+    {
+        return bad();
+    }
+    Ok(())
+}
+
+/// Index and text of the `version` line in `[workspace.package]`.
+fn find_line(manifest: &str) -> Result<(usize, &str), String> {
+    let mut in_section = false;
+    for (i, line) in manifest.lines().enumerate() {
+        let t = line.trim();
+        if t.starts_with('[') {
+            in_section = t == "[workspace.package]";
+            continue;
+        }
+        if in_section
+            && let Some(rest) = t.strip_prefix("version")
+            && rest.trim_start().starts_with('=')
+        {
+            return Ok((i, line));
+        }
+    }
+    Err("no `version = \"…\"` in [workspace.package] of the root Cargo.toml".into())
+}
+
+/// The workspace root (the parent of `xtask/`).
+fn root() -> PathBuf {
+    Path::new(env!("CARGO_MANIFEST_DIR")).parent().map(Path::to_path_buf).unwrap_or_else(|| PathBuf::from("."))
+}
+
+fn cargo_update(root: &Path, offline: bool) -> Result<(), String> {
+    let mut c = Command::new(std::env::var("CARGO").unwrap_or_else(|_| "cargo".into()));
+    c.args(["update", "--workspace"]).current_dir(root);
+    if offline {
+        c.arg("--offline");
+    }
+    let st = c.status().map_err(|e| format!("cargo update: {e}"))?;
+    if st.success() { Ok(()) } else { Err(format!("cargo update --workspace{} failed", if offline { " --offline" } else { "" })) }
+}
+
+/// `cargo xtask version [set X.Y.Z[-pre]]`; `args` are the words after `version`.
+pub fn run(args: &[String]) -> Result<(), String> {
+    let root = root();
+    let path = root.join("Cargo.toml");
+    let text = std::fs::read_to_string(&path).map_err(|e| format!("read {}: {e}", path.display()))?;
+    let args: Vec<&str> = args.iter().map(String::as_str).collect();
+    match args.as_slice() {
+        [] => {
+            println!("{}", read(&text)?);
+            Ok(())
+        }
+        ["set", new] => {
+            let old = read(&text)?;
+            let updated = replace(&text, new)?;
+            // Write atomically: a half-written root manifest breaks every build in the workspace.
+            let dir = root.join("target");
+            std::fs::create_dir_all(&dir).map_err(|e| format!("create {}: {e}", dir.display()))?;
+            let tmp = dir.join("Cargo.toml.xtask-version");
+            std::fs::write(&tmp, updated).map_err(|e| format!("write {}: {e}", tmp.display()))?;
+            std::fs::rename(&tmp, &path).map_err(|e| format!("replace {}: {e}", path.display()))?;
+            // Refresh the workspace members' entries in Cargo.lock (no dependency upgrades).
+            if cargo_update(&root, true).is_err() {
+                cargo_update(&root, false)?;
+            }
+            println!("version: {old} -> {new}");
+            Ok(())
+        }
+        _ => Err("usage: cargo xtask version [set X.Y.Z[-pre]]".into()),
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    const MANIFEST: &str = "[workspace]\nmembers = [\"a\"]\n\n[workspace.package]\nversion = \"0.1.0\"\nedition = \"2024\"\n\n[workspace.dependencies]\nfoo = { version = \"1\" }\n";
+
+    #[test]
+    fn reads_the_workspace_version() {
+        assert_eq!(read(MANIFEST).unwrap(), "0.1.0");
+        assert!(read("[package]\nversion = \"1.0.0\"\n").is_err());
+    }
+
+    #[test]
+    fn replaces_only_the_workspace_version() {
+        let out = replace(MANIFEST, "1.2.3-rc.1").unwrap();
+        assert_eq!(read(&out).unwrap(), "1.2.3-rc.1");
+        assert_eq!(out, MANIFEST.replace("version = \"0.1.0\"", "version = \"1.2.3-rc.1\""));
+        assert!(out.contains("foo = { version = \"1\" }"));
+    }
+
+    #[test]
+    fn keeps_crlf_line_endings() {
+        let crlf = MANIFEST.replace('\n', "\r\n");
+        let out = replace(&crlf, "2.0.0").unwrap();
+        assert_eq!(out, crlf.replace("\"0.1.0\"", "\"2.0.0\""));
+    }
+
+    #[test]
+    fn validates_versions() {
+        for ok in ["0.1.0", "1.20.300", "1.0.0-rc.1", "1.0.0-alpha", "1.0.0-x-y.2"] {
+            assert!(validate(ok).is_ok(), "{ok}");
+        }
+        for bad in ["1.0", "1.0.0.0", "v1.0.0", "01.0.0", "1.0.0-", "1.0.0-a..b", "1.0.0+meta", "1.a.0", ""] {
+            assert!(validate(bad).is_err(), "{bad}");
+        }
+        assert!(replace(MANIFEST, "nope").is_err());
+    }
+
+    #[test]
+    fn the_real_manifest_has_a_valid_version() {
+        let text = std::fs::read_to_string(root().join("Cargo.toml")).unwrap();
+        validate(&read(&text).unwrap()).unwrap();
+    }
+}
				`@@ -0,0 +1 @@`
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