2y
concept: forum where you can somehow securely log in with your activitypub account, instead of federation (i guess it can publish to activitypub in a read-only way, like an rss feed)
owncast has something for logging in, but idk if i'd call that secure (you type in your fedi profile, it sends you a 6-digit number in dms and you type that into owncast as proof)
maybe this is a very bad idea idk