{ pkgs, ... }:
{
  # Enable Lix and flakes.
  nixpkgs.overlays = [ (final: prev: {
    inherit (final.lixPackageSets.stable)
      nixpkgs-review
      nix-direnv
      nix-eval-jobs
      nix-fast-build
      colmena;
    })
  ];

  nix.package = pkgs.lixPackageSets.stable.lix;
}