nix/flake.nix

{
  description = "Rathi's macOS nix-darwin + Home Manager config";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";

    nix-darwin = {
      url = "github:LnL7/nix-darwin/master";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    home-manager = {
      url = "github:nix-community/home-manager";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    nix-homebrew = {
      url = "github:zhaofengli-wip/nix-homebrew";
    };
  };

  outputs = inputs @ {
    self,
    nixpkgs,
    nix-darwin,
    home-manager,
    nix-homebrew,
    ...
  }: let
    system = "aarch64-darwin";
    username = "rathi";
    hostname = "hari-macbook-pro";
    pkgs = import nixpkgs {inherit system;};
  in {
    formatter.${system} = pkgs.alejandra;

    darwinConfigurations.${hostname} = nix-darwin.lib.darwinSystem {
      inherit system;
      specialArgs = {inherit inputs self username hostname;};
      modules = [
        ./hosts/${hostname}
        home-manager.darwinModules.home-manager
        nix-homebrew.darwinModules.nix-homebrew
        {
          users.users.${username}.home = "/Users/${username}";

          home-manager.useGlobalPkgs = true;
          home-manager.useUserPackages = true;
          home-manager.backupFileExtension = "hm-bak";
          home-manager.users.${username} = import ./home;

          nix-homebrew = {
            enable = true;
            enableRosetta = true;
            user = username;
            autoMigrate = true;
          };
        }
      ];
    };
  };
}