Sweet. One does all. I believe you are planning on foing such for other Fediverse applications in the likes of Peertube ? Either way, it covers the more interesting cases which is lemmy & Mastodon for me.
Perhaps, would it be possible to cross-stream those on proprietary platforms? Akin to the popular restream service, or directly from your streaming program. Of course, I would just be still using the proprietary ones, but atleast, they will be shown that alternatives exist and help popularize it.
Oooh :c