As I understand it, the main fediverse softwares all implement ActivityPub in a little bit different way, and so don’t fully overlap with one another in terms of how well you can see content from one on another and in what ways you can interact with it. Is there a summary anywhere that just has a quick breakdown of what operations (subscribing to follow a Mastadon user from Lemmy, replying to a Lemmy post from Mastadon, etc) actually work or partially work?
Not that I know of, but here are some between Lemmy and Mastodon:
- Upvotes in Lemmy don’t translate to favorites in Mastodon
- From the Mastodon side communities are normal accounts that boost published posts.
- From Mastodon Lemmy’s posts are top-level messages (i.e. not a response), and comments are responses to the original message.
- You can post to a Lemmy community from Mastodon by publishing a post and tagging the community (@community_name@server.tld)
That’s awesome, this is exactly what I was looking for (or a start towards it at least).
Edit: sorry, reading your post again seems like you are looking for more specific details. I don’t have that summarized anywhere unfortunately.
Mastadon ❌
Mastodon ✅(*) I don’t mean to be picky, I just want to help you find better results in your search.
