Build Mac App is the complete source for a paid macOS app and the website that sells it. Licence keys, notarized releases, Sparkle auto-updates, payments, email and a blog are already built, tested and wired together, so you can spend your time on the app itself.

What's inside

• Licensing that never locks out a paying customer — keys activated per Mac, rechecked weekly, with a 14-day offline grace window.
• One command from source to notarized DMG — preflight, universal build, signing, launch test on Apple silicon and Intel, notarization, stapling and a signed update-feed entry, locally or in the included GitHub workflow.
• Auto-updates with Sparkle — a per-product EdDSA key and an appcast signed against the exact bytes of the DMG.
• Payments through Creem or Polar — both merchants of record, behind one contract, selected with one setting.
• The site that sells it — a Next.js site with pricing, legal pages, lost-key recovery, downloads that follow your releases, an MDX blog, llms.txt and IndexNow.
• Email that arrives once — receipts, recovery, refunds, a waitlist and launch broadcasts in React Email, sent through Resend.

Built for AI agents

The repository is designed to be worked on by coding agents: rule books written from real failures, a machine-readable map of the repo, a doctor that tells you what is left, checks that report file, line and fix, and thirteen Claude Code skills.

Extracted from real shipped Mac apps (MacMemory, Goal Rings, Localdock), with checks written after each failure they prevent.