I am playing around with your citrine tor relay idea.
Citrine seems to give me errors like invalid pubkey, Eof extension
I am trying to run citrine both as local and as onion service on same phone.
Also, odd outcomes from putting it both as outbox and as a general relay at same time. When I just select the citrine onion relay as sole outbox the note isn't broadcast.
But I am manic enough to keep testing away lol