I tried running the script (audio receiver) on two desktop Linux laptops running PipeWire and bluez, but my other computers (acting as an audio source) would no

I tried running the script (audio receiver) on two desktop Linux laptops running PipeWire and bluez, but my other computers (acting as an audio source) would not pick up the receiver advertising A2DP (0000110d-0000-1000-8000-00805f9b34fb), and the receiver's terminal prints neither "AuthorizeService" nor "Service rejected" (indicating that Agent isn't taking effect). What did I do wrong?