{
  nix = {
    settings.substituters = [
      "https://nrdxp.cachix.org"
    ];
    settings.trusted-public-keys = [
      "nrdxp.cachix.org-1:Fc5PSqY2Jm1TrWfm88l6cvGWwz3s93c6IOifQWnhNW4="
    ];
  };
}
