I've made (slightly modified the other one actually) a plugin for sending automatic stream announcements from OBS to Mastodon.social
The initial idea was to make a "multi social" announcer, that sends messages to as many platforms as you can, but I stuck on stupid Twitter, since they hide their API from public (there is actually a workaround) and it is a real pain in the butt to test it, since I was banned there immediately after registration. You see - writing python plugins with ready to use API is not hard at all, just a few lines from the first page of documentation. But getting all the supid auth tokens for all the different platfroms is the most frustrating part.
Also yes, this is not a native plugin and requires Python to be installed on the system.