Nah, it's all open sourced, and Eric P (npub1z6g…amwj) knows what's going on with it.
It's not a single point of failure by design, I'm just the only one doing anything with it right now.
It is literally a json file over a websocket. I don't know how to make it anymore open than that.
https://github.com/thebells1111/curiohoster
https://github.com/thebells1111/thesplitkit