{
  description = "Nixos config flake";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
    gtkapps.url = "github:JackMechem/gtkapps";
    gtkbar.url = "github:JackMechem/gtkbar";

    zen-browser = {
      url = "github:0xc000022070/zen-browser-flake";
      # IMPORTANT: we're using "libgbm" and is only available in unstable so ensure
      # to have it up-to-date or simply don't specify the nixpkgs input
      inputs.nixpkgs.follows = "nixpkgs";
    };
    home-manager = {
      url = "github:nix-community/home-manager";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  outputs =
    { self, nixpkgs, ... }@inputs:
    {
      # use "nixos", or your hostname as the name of the configuration
      # it's a better practice than "default" shown in the video
      nixosConfigurations.t480 = nixpkgs.lib.nixosSystem {
        specialArgs = { inherit inputs; };
        modules = [
          ./hosts/t480/configuration.nix
          inputs.home-manager.nixosModules.default
        ];
      };
      nixosConfigurations.desktop = nixpkgs.lib.nixosSystem {
        specialArgs = { inherit inputs; };
        modules = [
          ./hosts/desktop/configuration.nix
          inputs.home-manager.nixosModules.default
        ];
      };
    };
}