final: prev: {
  think-gtcm = final.callPackage ./think-gtcm.nix { };
  think-backend-gtcm = final.callPackage ./think-backend-gtcm.nix { php = final.php83; };

  asterisk = prev.asterisk.overrideAttrs (old: {
    propagatedNativeBuildInputs = [ prev.pkgs.spandsp3 ];
  });
}