Embeddable posts
Our posts are already embeddable with oembed/opengraph. What we don't have is an embeddable iframe thingie like Twitter or Mastodon have.
This involves creating a small backend-provided html snippet that can display a post / poll in a non-ugly way.
Previous work at twitter: https://help.twitter.com/en/using-twitter/how-to-embed-a-tweet
I could not find much information on the Mastodon feature, it actually seemed broken on mastosoc, but that might just be me. Here's one PR concerning it: https://github.com/tootsuite/mastodon/pull/4742