@kroner @cassidyclown @victor @gray @bot I'm pretty sure you could just borrow actor behavior 1:1 from an AP relay, it's just that instead of only relaying to users actors who followed, you also relay to application actors who followed (assuming they too are whitelisted federated boards). The problem is that le troll instance can open up a board actor, follow one other federated board, and quickly blast e.g. cp to every connected board to that one. You would need some complicated joining the network consensus mechanism, or a whitelist and some just trust me bro between board operators who chose to federate. That's the possible headache and why you potentially might not want to do that imo.