none of the rust-based minecraft server have enough functionality implemented to use them for survival, maybe for some minigames but that's about it. Pumpkin has gotten far out of the many[1] but there's still lots to be done.

1: https://dayssincelastrustmcserver.com/

These game servers are really the perfect use case for agents. Would anyone really care that much about code quality if the server works fast and reliably?