cross-platform-guardian

Ensure cross-platform compatibility across macOS (Intel/ARM), Ubuntu, and Fedora for this dotfiles repository. Detects and auto-fixes hardcoded paths, platform-specific assumptions, package availability issues, and test coverage gaps. Use when adding features, updating configs, bumping Nix flake, or investigating platform-specific bugs. Keywords: cross-platform, compatibility, macOS, Linux, Ubuntu, Fedora, platform, portability, Nix flake, Docker test, CI