Questions about the CO-OP mode of this game?

I have a server,
How can I contact the official,
I would like to add to the official server options,
Let players use my server!

I bought a server for 2 thousand usd,
How to share server?

My server system is Linux-Ubuntu

My-server==China - Guangzhou

Our multiplayer setup does not use hosted servers. It is P2P and connections are handled by a third-party service. It’s not possible to host your own server.

那官方能否开发一个 CO-OP Mod?

Can the official develop a CO-OP Mod?