{
  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.05";
    nixpkgs-unstable.url = "github:NixOS/nixpkgs/nixos-unstable";
  };

  outputs = inputs @ { self, nixpkgs, nixpkgs-unstable }:
  let
    system = "aarch64-linux";
  in {
    nixosConfigurations = {
      lapin = nixpkgs.lib.nixosSystem {
        inherit system;

        specialArgs = {
          me = { name = "lapin"; };

          unstable = import nixpkgs-unstable { inherit system; };
          inherit inputs;
        };

        modules = [ ./configuration.nix ];
      };
    };
  };
}