{
  description = "Nixos config flake";

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

  outputs = {nixpkgs, ...} @ inputs: {
    nixosConfigurations = {
      default = nixpkgs.lib.nixosSystem {
        specialArgs = {inherit inputs;};
        system = "x86_64-linux";
        modules = [
          ./devices/xps13/configuration.nix
          ./modules
        ];
      };
      pi = nixpkgs.lib.nixosSystem {
        specialArgs = {inherit inputs;};
        system = "aarch64-linux";
        modules = [
          "${nixpkgs}/nixos/modules/installer/sd-card/sd-image-aarch64-installer.nix"
          ./devices/pi/configuration.nix
          {
            sdImage.compressImage = false;
						nixpkgs.overlays = [
              (final: super: {
                makeModulesClosure = x:
                  super.makeModulesClosure (x // { allowMissing = true; });
              })
            ];
          }
        ];
      };
    };
  };
}