{
  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
    home-manager.url = "github:nix-community/home-manager/master";
    home-manager.inputs.nixpkgs.follows = "nixpkgs";
    darwin.url = "github:lnl7/nix-darwin";
    darwin.inputs.nixpkgs.follows = "nixpkgs";
  };

  outputs = inputs: {
    darwinConfigurations.TobAir = inputs.darwin.lib.darwinSystem {
      system = "aarch64-darwin";
      pkgs = import inputs.nixpkgs { system = "aarch64-darwin"; };
      modules = [
        ({ pkgs, ... }: {
          programs.zhs.enable = true;
          programs.fish.enable = true;
          environment.shells = [ pkgs.bash pkgs.zsh pkgs.fish ];
          environment.loginShell = pkgs.fish;
          nix-extraOptions = ''
            experimental-features = nix-command flakes
          '';
          systemPackages = [ pkgs.coreutils ];
          services.nix-daemon.enable = true;
          system.defaults.finder.AppleShowAllExtensions = true;
          system.defaults.finder.FXShowPosixPathInTitle = true;
          system.defaults.dock.autohide = true;
          system.defaults.NSGlobalDomain.InitialKeyRepeat = 14;
          system.defaults.NSGlobalDomain.KeyRepeat = 1;
        })
      ];
    };
  };
}