Build each platform on its own native runner

Splits the release workflow into linux, windows and macos jobs feeding a
single publish job. The publish step is separate so parallel builds cannot
race to create the release and fail on a duplicate tag.

Windows now builds natively, so signAndEditExecutable no longer has to be
disabled. That flag was suppressing rcedit, which is what embeds the icon
and version resources -- the v1.0.0 exe shipped with the stock Electron
icon as a result. Also adds an NSIS installer alongside the portable zip.

macOS gains a dmg target, which cannot be produced off macOS. Builds stay
unsigned pending a Developer ID, with CSC_IDENTITY_AUTO_DISCOVERY disabled
so electron-builder builds unsigned instead of failing on a real Mac.

Nothing cross-builds now; all three runners must be registered before
tagging, since a job with no matching runner queues silently.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

.gitea/workflows/release.yml

@@ -1,8 +1,19 @@
-name: Build AppImage
+name: Build release artifacts
 
-# Builds the Linux AppImage on a version tag and attaches it to a Gitea release.
-# Tag must match the version in desktop-client/package.json, since electron-builder
-# names the artifact from package.json (not from the tag).
+# Builds each platform natively on a v* tag and publishes one Gitea release.
+#
+# Runners required. None are registered yet, and a job with no matching runner
+# queues silently rather than failing, so register all three before tagging:
+#   ubuntu-latest   Linux AppImage
+#   windows-latest  Windows NSIS installer + portable zip
+#   macos-arm64     macOS dmg + zip, both architectures (M-series builds both)
+#
+# Nothing cross-builds any more: dmg requires macOS, and the Windows exe needs
+# rcedit on Windows to get its icon and version resources.
+#
+# All output is unsigned. Once certificates exist: for macOS drop mac.identity
+# from package.json and remove CSC_IDENTITY_AUTO_DISCOVERY; for Windows add the
+# cert secrets. Until then users hit Gatekeeper and SmartScreen warnings.
 on:
   push:
     tags:
@@ -10,18 +21,19 @@ on:
   workflow_dispatch:
 
 jobs:
-  appimage:
+  linux:
     runs-on: ubuntu-latest
     defaults:
       run:
         working-directory: desktop-client
     steps:
       - uses: actions/checkout@v4
-
       - uses: actions/setup-node@v4
         with:
           node-version: '22'
 
+      # Runs only here rather than in all three jobs: it is a repo-wide check,
+      # and this job uses bash, which is not guaranteed on the Windows runner.
       - name: Verify tag matches package.json version
         if: startsWith(github.ref, 'refs/tags/v')
         run: |
@@ -29,7 +41,7 @@ jobs:
           tag_version="${GITHUB_REF_NAME#v}"
           if [ "$pkg_version" != "$tag_version" ]; then
             echo "Tag $GITHUB_REF_NAME does not match package.json version $pkg_version." >&2
-            echo "Bump package.json before tagging, or the AppImage will be misnamed." >&2
+            echo "Bump package.json before tagging, or artifacts will be misnamed." >&2
             exit 1
           fi
 
@@ -42,31 +54,118 @@ jobs:
       - name: Build AppImage
         run: npx electron-builder --linux AppImage --publish never
 
-      - name: Attach AppImage to release
+      - uses: actions/upload-artifact@v3
+        with:
+          name: linux
+          path: desktop-client/dist/*.AppImage
+          if-no-files-found: error
+
+  windows:
+    runs-on: windows-latest
+    defaults:
+      run:
+        working-directory: desktop-client
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '22'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Run tests
+        run: npm test
+
+      - name: Build installer and portable zip
+        run: npx electron-builder --win nsis zip --publish never
+
+      - uses: actions/upload-artifact@v3
+        with:
+          name: windows
+          path: |
+            desktop-client/dist/*.exe
+            desktop-client/dist/*-win-*.zip
+          if-no-files-found: error
+
+  macos:
+    runs-on: macos-arm64
+    defaults:
+      run:
+        working-directory: desktop-client
+    env:
+      # No Developer ID yet: stop electron-builder auto-discovering an identity,
+      # which otherwise fails the build on a real Mac rather than building unsigned.
+      CSC_IDENTITY_AUTO_DISCOVERY: 'false'
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '22'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Run tests
+        run: npm test
+
+      - name: Build dmg and zip (both architectures)
+        run: npx electron-builder --mac --x64 --arm64 --publish never
+
+      - uses: actions/upload-artifact@v3
+        with:
+          name: macos
+          path: |
+            desktop-client/dist/*.dmg
+            desktop-client/dist/*-mac-*.zip
+          if-no-files-found: error
+
+  publish:
+    # Separate job so only one process touches the release: parallel build jobs
+    # would race to create it and one would fail on the duplicate tag.
+    needs: [linux, windows, macos]
     if: startsWith(github.ref, 'refs/tags/v')
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/download-artifact@v3
+        with:
+          path: artifacts
+
+      - name: Create release and attach artifacts
         env:
           TOKEN: ${{ secrets.RELEASE_TOKEN }}
           API: ${{ github.server_url }}/api/v1/repos/${{ github.repository }}
         run: |
           set -euo pipefail
-          artifact=$(ls dist/*.AppImage | head -1)
-          echo "Publishing $artifact for $GITHUB_REF_NAME"
+          if [ -z "${TOKEN:-}" ]; then
+            echo "RELEASE_TOKEN secret is not set." >&2
+            exit 1
+          fi
 
-          # Reuse the release if the tag already has one, otherwise create it.
           release_id=$(curl -sf -H "Authorization: token $TOKEN" \
-            "$API/releases/tags/$GITHUB_REF_NAME" | node -p \
-            "JSON.parse(require('fs').readFileSync(0,'utf8')).id" 2>/dev/null || true)
+            "$API/releases/tags/$GITHUB_REF_NAME" \
+            | node -p "JSON.parse(require('fs').readFileSync(0,'utf8')).id" 2>/dev/null || true)
 
           if [ -z "${release_id:-}" ]; then
             release_id=$(curl -sf -X POST -H "Authorization: token $TOKEN" \
               -H "Content-Type: application/json" \
               -d "{\"tag_name\":\"$GITHUB_REF_NAME\",\"name\":\"$GITHUB_REF_NAME\"}" \
-              "$API/releases" | node -p \
-              "JSON.parse(require('fs').readFileSync(0,'utf8')).id")
+              "$API/releases" \
+              | node -p "JSON.parse(require('fs').readFileSync(0,'utf8')).id")
           fi
 
+          found=0
+          for f in $(find artifacts -type f \( -name '*.AppImage' -o -name '*.zip' -o -name '*.dmg' -o -name '*.exe' \)); do
+            name=$(basename "$f")
+            echo "Attaching $name"
             curl -sf -X POST -H "Authorization: token $TOKEN" \
-            -F "attachment=@$artifact" \
-            "$API/releases/$release_id/assets?name=$(basename "$artifact")" \
-            -o /dev/null
-          echo "Attached $(basename "$artifact") to release $release_id"
+              -F "attachment=@$f" \
+              "$API/releases/$release_id/assets?name=$name" -o /dev/null
+            found=$((found + 1))
+          done
+
+          if [ "$found" -eq 0 ]; then
+            echo "No artifacts found to attach." >&2
+            exit 1
+          fi
+          echo "Attached $found artifacts to release $release_id"

desktop-client/package.json

@@ -25,10 +25,11 @@
       "main": "index.js"
     },
     "win": {
-      "target": "zip",
-      "sign": false,
-      "signAndEditExecutable": false,
-      "certificateSubjectName": null
+      "target": [
+        "nsis",
+        "zip"
+      ],
+      "icon": "build/icon.png"
     },
     "linux": {
       "target": [
@@ -42,10 +43,17 @@
     "artifactName": "${productName}-${version}-${os}-${arch}.${ext}",
     "mac": {
       "target": [
+        "dmg",
         "zip"
       ],
       "icon": "build/icon.png",
-      "category": "public.app-category.music"
+      "category": "public.app-category.music",
+      "identity": null
+    },
+    "nsis": {
+      "oneClick": false,
+      "allowToChangeInstallationDirectory": true,
+      "perMachine": false
     }
   },
   "dependencies": {