{
  inputs = {
    my-nixpkgs.url = "github:qaristote/my-nixpkgs";
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
  };

  outputs =
    {
      nixpkgs,
      my-nixpkgs,
      nixos-hardware,
      ...
    }:
    {
      nixosConfigurations =
        let
          system = "x86_64-linux";
          commonModules = [
            my-nixpkgs.nixosModules.personal
            (
              { ... }:
              {
                nixpkgs.overlays = [
                  my-nixpkgs.overlays.personal
                ];
              }
            )
          ];
        in
        {
          hephaistos = nixpkgs.lib.nixosSystem {
            inherit system;
            specialArgs = { inherit nixos-hardware; };
            modules = commonModules ++ [ ./config ];
          };
          hephaistos-test = nixpkgs.lib.nixosSystem {
            inherit system;
            modules = commonModules ++ [ ./tests/configuration.nix ];
          };
        };
    };
}