{
  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
  inputs.sops-nix.url = "github:Mic92/sops-nix";
  
  outputs = { self, nixpkgs, sops-nix }@attrs: let
    hydraGitea = (final: prev: {
      hydra_unstable = prev.hydra_unstable.overrideAttrs
        (old: {
          doCheck = false;
          patches = [
            (final.fetchpatch {
              name = "hydra-gitea-push-patch";
              url = "https://patch-diff.githubusercontent.com/raw/NixOS/hydra/pull/1227.patch";
              sha256 = "A4dN/4zLMKLYaD38lu87lzAWH/3EUM7G5njx7Q4W47w=";
            })
          ];
        });
    });
    nvidiaContainer = import ./nvidiacontainer-overlay.nix nixpkgs;
  in {
    
    nixosConfigurations.nixos = nixpkgs.lib.nixosSystem {
      system = "x86_64-linux";
      specialArgs = attrs;
      modules =
        [
          ({ config, pkgs, ... }: {
            nixpkgs.overlays = [ hydraGitea nvidiaContainer ];
          })
          ./machines/hippocampus/configuration.nix
          sops-nix.nixosModules.sops
        ];
    };    
    nixosConfigurations.universedesktop = nixpkgs.lib.nixosSystem {
      system = "x86_64-linux";
      specialArgs = attrs;
      modules =
        [
          ./machines/universedesktop/configuration.nix
        ];
    };
  };
}