Sorry if the question is stupid. More and more often, I see servers that Bedrock Edition and Java Edition players can play on at the same time. Are there open source implementations? ProtocolSupportPE is no longer updated. Do you plan to support this option in Paper?
No, as has been discussed before, it’s not viable for us to maintain this, nor do we have much interest in doing so. There are already community projects which pull this off, e.g. dragonproxy, etc