{
  description = "System configuration for all machines in samfélag";

  inputs = {

    nixpkgs.url = "github:nixos/nixpkgs/nixos-22.05";

    home-manager.url = "github:nix-community/home-manager/release-22.05";
    home-manager.inputs.nixpkgs.follows = "nixpkgs";

    emacs-overlay.url  = "github:nix-community/emacs-overlay";

  };

  outputs = inputs @ { self, nixpkgs, home-manager, ... }:
    let
      system = "x86_64-linux";
      pkgs = import nixpkgs {
        inherit system;
        config.allowUnfree = true;
        overlays = import ./overlays;
      };
      lib = nixpkgs.lib.extend
        (self: super: { my = import ./lib { inherit pkgs inputs; lib = self; }; });
    in {
      nixosConfigurations = {

        # - Reykjavik ----------------------------
        reykjavik = lib.nixosSystem {
          inherit system;
          inherit pkgs;
          specialArgs = { inherit lib inputs system; };
          modules = [

            ./hosts/reykjavik

            {
              imports =
                [ inputs.home-manager.nixosModules.home-manager ]
                # All my personal modules
                ++ (lib.my.mapModulesRec' (toString ./modules) import);
            }

          ];
        };

        # - Kopavogur ----------------------------
        kopavogur = lib.nixosSystem {
          inherit system;
          inherit pkgs;
          specialArgs = { inherit lib inputs system; };
          modules = [

            ./hosts/kopavogur

            {
              imports =
                [ inputs.home-manager.nixosModules.home-manager ]
                # All my personal modules
                ++ (lib.my.mapModulesRec' (toString ./modules) import);
            }

          ];
        };

      };
    };
}