You look great!

Regarding your tech question, afaik lemmy and piefed are separate protocols, so if you have a multi-protocol app, crossposting might work better. (EDIT: Or, I'm told, they're both ActivityPub-based and meant to work together, but at this point in time there are differences in the details that complicate things a little.) Otherwise an instance would need to be compatible but run a bridge that handles that. I wish these things were better connected, thinking specifically of the divide between ActivityPub and Diaspora, as well as Bluesky's formerly defederated state.