I decided to launch an IRC room for 0chan.vip + the multichan software / network. IRC is a 33 year old chat software that works fairly well.
If you don't have a proper IRC client (like Hexchat or mIRC) installed, the web client does fine.
> Web link:
Note for new IRC users:
Chat rooms do not show previous messages upon joining and can be quiet for long periods of time. IRC users often join multiple chatrooms (called "channels") and then leaving the program running in the background for a while, maybe after sending a few messages.