Antigravity-awesome-skills macos-spm-app-packaging

Scaffold, build, sign, and package SwiftPM macOS apps without Xcode projects.

install

source · Clone the upstream repo

git clone https://github.com/sickn33/antigravity-awesome-skills

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/sickn33/antigravity-awesome-skills "$T" && mkdir -p ~/.claude/skills && cp -r "$T/plugins/antigravity-awesome-skills/skills/macos-spm-app-packaging" ~/.claude/skills/sickn33-antigravity-awesome-skills-macos-spm-app-packaging-b02997 && rm -rf "$T"

manifest: plugins/antigravity-awesome-skills/skills/macos-spm-app-packaging/SKILL.md

macOS SwiftPM App Packaging (No Xcode)

Overview

Bootstrap a complete SwiftPM macOS app folder, then build, package, and run it without Xcode. Use

assets/templates/bootstrap/

for the starter layout and

references/packaging.md

references/release.md

for packaging and release details.

When to Use

When the user needs a SwiftPM-based macOS app without relying on an Xcode project.
When you need packaging, signing, notarization, or appcast guidance for a SwiftPM app.

Two-Step Workflow

Bootstrap the project folder
- Copy
```
assets/templates/bootstrap/
```
  into a new repo.
- Rename
```
MyApp
```
  in
```
Package.swift
```
  ,
```
Sources/MyApp/
```
  , and
```
version.env
```
  .
- Customize
```
APP_NAME
```
  ,
```
BUNDLE_ID
```
  , and versions.
Build, package, and run the bootstrapped app
- Copy scripts from
```
assets/templates/
```
  into your repo (for example,
```
Scripts/
```
  ).
- Build/tests:
```
swift build
```
  and
```
swift test
```
  .
- Package:
```
Scripts/package_app.sh
```
  .
- Run:
```
Scripts/compile_and_run.sh
```
  (preferred) or
```
Scripts/launch.sh
```
  .
- Release (optional):
```
Scripts/sign-and-notarize.sh
```
  and
```
Scripts/make_appcast.sh
```
  .
- Tag + GitHub release (optional): create a git tag, upload the zip/appcast to the GitHub release, and publish.

Minimum End-to-End Example

Shortest path from bootstrap to a running app:

# 1. Copy and rename the skeleton
cp -R assets/templates/bootstrap/ ~/Projects/MyApp
cd ~/Projects/MyApp
sed -i '' 's/MyApp/HelloApp/g' Package.swift version.env

# 2. Copy scripts
cp assets/templates/package_app.sh Scripts/
cp assets/templates/compile_and_run.sh Scripts/
chmod +x Scripts/*.sh

# 3. Build and launch
swift build
Scripts/compile_and_run.sh

Validation Checkpoints

Run these after key steps to catch failures early before proceeding to the next stage.

After packaging (

Scripts/package_app.sh

# Confirm .app bundle structure is intact
ls -R build/HelloApp.app/Contents

# Check that the binary is present and executable
file build/HelloApp.app/Contents/MacOS/HelloApp

After signing (

Scripts/sign-and-notarize.sh

or ad-hoc dev signing):

# Inspect signature and entitlements
codesign -dv --verbose=4 build/HelloApp.app

# Verify the bundle passes Gatekeeper checks locally
spctl --assess --type execute --verbose build/HelloApp.app

After notarization and stapling:

# Confirm the staple ticket is attached
stapler validate build/HelloApp.app

# Re-run Gatekeeper to confirm notarization is recognised
spctl --assess --type execute --verbose build/HelloApp.app

Common Notarization Failures

Symptom	Likely Cause	Recovery
`The software asset has already been uploaded`	Duplicate submission for same version	Bump `BUILD_NUMBER` in `version.env` and repackage.
`Package Invalid: Invalid Code Signing Entitlements`	Entitlements in `.entitlements` file don't match provisioning	Audit entitlements against Apple's allowed set; remove unsupported keys.
`The executable does not have the hardened runtime enabled`	Missing `--options runtime` flag in `codesign` invocation	Edit `sign-and-notarize.sh` to add `--options runtime` to all `codesign` calls.
Notarization hangs / no status email	`xcrun notarytool` network or credential issue	Run `xcrun notarytool history` to check status; re-export App Store Connect API key if expired.
`stapler validate` fails after successful notarization	Ticket not yet propagated	Wait ~60 s, then re-run `xcrun stapler staple` .

Templates

```
assets/templates/package_app.sh
```
: Build binaries, create the .app bundle, copy resources, sign.
```
assets/templates/compile_and_run.sh
```
: Dev loop to kill running app, package, launch.
```
assets/templates/build_icon.sh
```
: Generate .icns from an Icon Composer file (requires Xcode install).
```
assets/templates/sign-and-notarize.sh
```
: Notarize, staple, and zip a release build.
```
assets/templates/make_appcast.sh
```
: Generate Sparkle appcast entries for updates.
```
assets/templates/setup_dev_signing.sh
```
: Create a stable dev code-signing identity.
```
assets/templates/launch.sh
```
: Simple launcher for a packaged .app.
```
assets/templates/version.env
```
: Example version file consumed by packaging scripts.
```
assets/templates/bootstrap/
```
: Minimal SwiftPM macOS app skeleton (Package.swift, Sources/, version.env).

Notes

Keep entitlements and signing configuration explicit; edit the template scripts instead of reimplementing.
Remove Sparkle steps if you do not use Sparkle for updates.
Sparkle relies on the bundle build number (
```
CFBundleVersion
```
), so
```
BUILD_NUMBER
```
in
```
version.env
```
must increase for each update.
For menu bar apps, set
```
MENU_BAR_APP=1
```
when packaging to emit
```
LSUIElement
```
in Info.plist.

Limitations

Use this skill only when the task clearly matches the scope described above.
Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.