macos-system-prep
Installation
SKILL.md
macOS System Prep
Takes a factory-fresh (or freshly upgraded) Mac to the point where package managers and dev tools can be installed: current macOS, Xcode Command Line Tools (CLT), optional Rosetta 2, and a home for source code. This is the first step of any Mac dev setup — Homebrew refuses to build on stale SDKs and needs the CLT.
When NOT to use
- Security hardening (FileVault, firewall, Touch ID sudo) →
macos-security-baseline - Finder/Dock/keyboard preference tweaks →
macos-defaults - Installing Homebrew or any packages →
homebrew-setup - Full Xcode, iOS simulators,
xcodebuild→mobile-dev-setup - Whole-machine end-to-end setup →
macos-dev-setup