{
  inputs,
  self,
  ...
}: {
  flake.nixosModules.unstable-overlay = {
    nixpkgs.overlays = [
      self.overlays.unstable
    ];
  };
  flake.homeModules.unstable-overlay = {
    nixpkgs.overlays = [
      self.overlays.unstable
    ];
  };
  flake.overlays.unstable = final: prev: {
    unstable = import inputs.nixpkgs-unstable {
      system = prev.system;
      config.allowUnfree = true;
    };
  };
}