- install.sh: detect Darwin, use Homebrew for packages/Node, Docker Desktop hint - install.sh: portable realpath and bash 3-compatible confirm() for macOS - docs/installer-support.md: add macOS (Darwin) / Homebrew to support matrix - README.md: document supported platforms (Linux and macOS), Docker Desktop/Homebrew - ci.yml: add installer-macos job (macos-latest, bash -n install.sh) Made-with: Cursor