The macOS Gitea runner lacks Node.js, causing actions/checkout@v4
(a JS action) to fail with "Cannot find: node in PATH". Fixed by
installing Node.js via Homebrew before checkout and replacing all
JS-based actions (setup-node, rust-toolchain, rust-cache) with
shell equivalents.
Also adds macOS section to BUILDING.md covering Xcode CLI tools,
universal binary targets, and Gatekeeper bypass instructions.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Josh Knapp
946ea03956