{ inputs, ... }: {
  nix.settings = {
    experimental-features = [ "nix-command" "flakes" ];
    auto-optimise-store = true;

    extra-substituters =
      [ "https://helix.cachix.org" "https://hyprland.cachix.org" ];
    extra-trusted-public-keys = [
      "helix.cachix.org-1:ejp9KQpR1FBI2onstMQ34yogDm4OgU2ru6lIwPvuCVs="
      "hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="
    ];
  };
  nixpkgs.overlays =
    [ inputs.helix.overlays.default inputs.hyprland.overlays.default ];
}