nostr:nprofile1qqs02f70juxwyc88gfsjzjlkzt50wkjemvvrtmt7gpfnymplvh3r9mspzamhxue69uhhyetvv9ujumn0wd68ytnzv9hxgtcpzamhxue69uhhyetvv9ujuurjd9kkzmpwdejhgtcpz9mhxue69uhkummnw3ezuamfdejj73r4387, have you considered using OTRTA?

It's an e-cash based nostr client that you can use instead of ppq, but you can self host it.

The client has an integrated e-cash wallet and it puts e-cash notes in the HTTP request that goes to the LLM aggregator and receives change in the HTTP response from the aggregator. No identity required...

I have been using it since before pizza day and I haven't faced any issues so far.