Nixmac

Nixmac is an AI-powered macOS configuration manager that transforms a Mac into a reproducible, version-controlled system, built on open-source foundations including nix-darwin, Nixpkgs, home-manager, Homebrew, Git, and launchd. Users describe desired configurations in plain English, and the tool automatically generates Nix code, builds it, and applies changes safely. Template scaffolding offers starter configurations like nix-darwin + Determinate and flake-parts, existing flake import integrates with GitHub to adopt configurations without rewriting, and drift detection identifies manual system changes for adoption or reversal. Transparent builds stream build phases in real time with line-level diff review before applying, and every apply is recorded as a git commit with an AI-written, semantic message.