Audincekit is the user-interaction module of the Open Vtuber ToolKit. Unlike other solutions, it is built to be entirely vendor neutral (ie, does not care what streaming service you use), and highly extensible for programmers and non-programmers alike!
Currently supported providers (chats) are:
Twitch
YoutubeLive (beta)
Misskey
(Want to see your platform supported? Consider contributing a chat module for it!)