Build desktop app for Intel Macs

.github/workflows/build-desktop.yml

@@ -31,8 +31,8 @@ concurrency:
 
 jobs:
   macos:
-    name: macOS arm64 desktop artifacts
-    runs-on: macos-15
+    name: macOS arm64 + x64 desktop artifacts
+    runs-on: macos-15-intel
     timeout-minutes: 45
 
     steps:
@@ -51,8 +51,8 @@ jobs:
           node-version: ${{ env.NODE_VERSION }}
           cache: pnpm
 
-      - name: Verify arm64 runner
-        run: test "$(uname -m)" = "arm64"
+      - name: Verify Intel runner
+        run: test "$(uname -m)" = "x86_64"
 
       - name: Install dependencies
         run: pnpm install --frozen-lockfile --prefer-offline
@@ -103,7 +103,7 @@ jobs:
             exit 1
           fi
 
-      - name: Package arm64 desktop artifacts
+      - name: Package arm64 and x64 desktop artifacts
         env:
           CSC_LINK: ${{ secrets.MACOS_CERTIFICATE_P12 }}
           CSC_KEY_PASSWORD: ${{ secrets.MACOS_CERTIFICATE_PASSWORD }}
@@ -166,7 +166,7 @@ jobs:
       - name: Upload desktop workflow artifacts
         uses: actions/upload-artifact@v4
         with:
-          name: bb-desktop-macos-arm64
+          name: bb-desktop-macos-arm64-x64
           path: |
             apps/desktop/release/*.dmg
             apps/desktop/release/*.zip
@@ -250,7 +250,7 @@ jobs:
           {
             echo "## bb desktop artifacts"
             echo
-            echo "- arm64 macOS .dmg, .zip, latest-mac.yml, and desktop-version.json uploaded as workflow artifacts"
+            echo "- arm64 and x64 macOS .dmg/.zip artifacts, latest-mac.yml, and desktop-version.json uploaded as workflow artifacts"
             echo "- version: ${VERSION}"
             echo "- prerelease version: ${IS_PRERELEASE}"
             echo "- stable release publication requested and allowed: ${SHOULD_PUBLISH}"

.github/workflows/publish-bb-app.yml

@@ -222,7 +222,7 @@ jobs:
     name: Publish bb Nightly desktop
     if: ${{ github.event_name == 'schedule' || (inputs.npm_tag == 'nightly' && inputs.dry_run == false) }}
     needs: publish
-    runs-on: macos-15
+    runs-on: macos-15-intel
     timeout-minutes: 45
     permissions:
       contents: write
@@ -246,8 +246,8 @@ jobs:
           node-version: 22.x
           cache: pnpm
 
-      - name: Verify arm64 runner
-        run: test "$(uname -m)" = "arm64"
+      - name: Verify Intel runner
+        run: test "$(uname -m)" = "x86_64"
 
       - name: Install dependencies
         run: pnpm install --frozen-lockfile --prefer-offline
@@ -298,7 +298,7 @@ jobs:
             exit 1
           fi
 
-      - name: Package signed arm64 nightly desktop artifacts
+      - name: Package signed arm64 and x64 nightly desktop artifacts
         env:
           CSC_LINK: ${{ secrets.MACOS_CERTIFICATE_P12 }}
           CSC_KEY_PASSWORD: ${{ secrets.MACOS_CERTIFICATE_PASSWORD }}
@@ -317,7 +317,7 @@ jobs:
       - name: Upload nightly desktop workflow artifacts
         uses: actions/upload-artifact@v4
         with:
-          name: bb-nightly-desktop-macos-arm64-${{ steps.nightly_version.outputs.version }}
+          name: bb-nightly-desktop-macos-arm64-x64-${{ steps.nightly_version.outputs.version }}
           retention-days: 14
           path: |
             apps/desktop/release/*.dmg

README.md

@@ -35,7 +35,7 @@ The recommended way to start using bb is the desktop app:
 
 **[Download the latest desktop app](https://github.com/get-bb/bb/releases/tag/desktop-latest)**
 
-The desktop build is currently macOS Apple Silicon (arm64) only. Intel Mac and
+The desktop build supports macOS on Apple Silicon (arm64) and Intel (x64).
 Linux users should run bb with `npx` instead. On Windows, run bb inside
 [WSL2 (Windows Subsystem for Linux)](https://learn.microsoft.com/windows/wsl/install):
 install WSL2 first, then run the same `npx` command below from your WSL2 (Linux)

apps/desktop/README.md

@@ -73,7 +73,8 @@ pnpm exec turbo run smoke:packaged --filter=@bb/desktop
 ```
 
 Artifacts are written under `apps/desktop/release/`. The desktop build is
-macOS-only and Apple Silicon arm64-only. Without signing secrets, local builds
+macOS-only and produces separate Apple Silicon arm64 and Intel x64 artifacts.
+Without signing secrets, local builds
 sign with a code-signing identity auto-discovered from the keychain and skip
 notarization. A valid signature matters even for local builds: macOS
 provenance-tracks unsigned apps, forcing syspolicyd to evaluate every exec in

apps/desktop/electron-builder.config.json

@@ -40,11 +40,11 @@
     "target": [
       {
         "target": "dmg",
-        "arch": ["arm64"]
+        "arch": ["arm64", "x64"]
       },
       {
         "target": "zip",
-        "arch": ["arm64"]
+        "arch": ["arm64", "x64"]
       }
     ]
   },

apps/desktop/package.json

@@ -10,11 +10,11 @@
   "scripts": {
     "build": "node scripts/build.mjs",
     "clean": "rimraf dist release",
-    "desktop:build": "pnpm run build && node scripts/run-electron-builder.mjs --mac --arm64 --publish always",
+    "desktop:build": "pnpm run build && node scripts/run-electron-builder.mjs --mac --publish always",
     "desktop:version-feed": "tsx scripts/generate-version-feed.mts",
     "dev": "pnpm run prepare-runtime && pnpm run build && node --conditions=source --import tsx scripts/run-electron-dev.mjs",
     "dist": "pnpm run prepare-runtime && pnpm run desktop:build",
-    "package": "pnpm run prepare-runtime && pnpm run build && node scripts/run-electron-builder.mjs --mac --dir --arm64",
+    "package": "pnpm run prepare-runtime && pnpm run build && node scripts/run-electron-builder.mjs --mac --dir",
     "prepare-runtime": "pnpm exec turbo run build --filter=bb-app --output-logs=new-only",
     "smoke:packaged": "node scripts/smoke-packaged-app.mjs",
     "start": "pnpm run package && node scripts/run-packaged-app.mjs",