How to use the netplay-lobby-server-go project on GitHub

The official game lobby at

is very slow for netplay, so I want to set up a local game lobby to play with friends. I’ve successfully deployed it, but I don’t know how to use it. Could anyone kindly provide guidance? Thank you very much!

The address of my deployed lobby is: http://38.22.92.104:7777/

How can I connect RetroArch to this lobby for gaming? Please provide some advice.

The documentation for hosting a netplay lobby server is pretty sparse, which is unfortunate because there should be a lot more of them. I set up the go lobby server that is available on github but in attempting to connection to it, I get the message that it is an older version of RetroArch. When I attempt to connect to the us-east server, I get the same message. The version on my Knulli is 1.20.0. It appears that the code for the lobby server hasn’t been touched in 4 years.