{
  description = "satr14's nix flake";
  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
    hm = {
      url = "github:nix-community/home-manager/master";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    gl.url = "github:nix-community/nixGL";
    ctp.url = "github:catppuccin/nix";
  };

  outputs = inputs: let 
    args = { inherit inputs; } // import ./lib/options.nix;
    pkgs = import inputs.nixpkgs {
      system = "x86_64-linux";
      overlays = [ inputs.gl.overlay ];
      config.allowUnfree = true;
    };

    nixosConfigForHost = { host }: pkgs.lib.nixosSystem {
      specialArgs = args;
      modules = [
        ./hosts/${host}/config.nix
        inputs.ctp.nixosModules.catppuccin
        inputs.hm.nixosModules.home-manager
        {
          home-manager = {
            extraSpecialArgs = args;
            backupFileExtension = ".hm-backup";
            users.${args.username} = import ./hosts/${host}/home.nix;
          };
        }
      ];
    };
  in  {
    nixosConfigurations = {
      thinkpad = nixosConfigForHost "thinkpad";
    };
  };
}