{
  nix = {
    settings = {
      substituters = [
        "https://natsukagami.cachix.org"
      ];
      trusted-public-keys = [
        "natsukagami.cachix.org-1:3U6GV8i8gWEaXRUuXd2S4ASfYgdl2QFPWg4BKPbmYiQ="
      ];
    };
  };
}