Homebrew Setup

Installs Homebrew correctly (right prefix, PATH wired for every future shell), verifies it, and establishes the Brewfile workflow that makes the machine reproducible. This skill owns the brew line in ~/.zprofile and the Brewfile regeneration workflow — other skills install packages but never rewrite those.

When NOT to use

• Which CLI tools to install → dev-cli-tools; GUI apps → mac-dev-apps
• Routine brew update/upgrade/cleanup runs → mac-maintenance
• Xcode CLT missing → macos-system-prep (prerequisite of this skill)
• Local databases as services → web-dev-setup

Prerequisites