{ self, unstable, ... } @ inputs:

{
  alpha = self.lib.mkSystem {
    name = "alpha";
    nixpkgs = unstable;
    extraModules = [
      inputs.sops-nix.nixosModules.sops
      inputs.impermanence.nixosModules.impermanence
      inputs.attic.nixosModules.atticd
    ];
  };

  haruka = self.lib.mkSystem {
    name = "haruka";
    nixpkgs = unstable;
    extraModules = [
      inputs.sops-nix.nixosModules.sops
      inputs.impermanence.nixosModules.impermanence
      inputs.attic.nixosModules.atticd
    ];
  };

  kanata = self.lib.mkSystem {
    name = "kanata";
    nixpkgs = unstable;
    extraModules = [
      inputs.sops-nix.nixosModules.sops
      inputs.impermanence.nixosModules.impermanence
      inputs.attic.nixosModules.atticd
    ];
  };
}