julian:Right now if you copy a NodeBB topic (/topic/12345) and paste it into something like Mastodon, you'll get nothing because it is an ordered collection and it doesn't know how to handle it.It would be really great if you got something useful when you look up a NodeBB topic in Mastodon!
@julian FEP-171b has its own way to backfill, also via context, but it is a collection of activities (such as Create).I am currently trying to figure out how to make Containers compatible with NodeBB and others.