Who else do they federation with?
You can see and comment Lemmy posts from Mastodon.
Oh really? Can I join mastodon servers on the lemmly app?
That is not possible. It is more that Lemmy allows you to expose your community and posts in it to the entirety of the (microblogging) Fediverse. While e.g. from Mastodon you can comment on posts created in Lemmy, you can create posts in a community. For that a Lemmy account is required. But the post and the comments are seen on timelines for interactions and you can also boost them, for instance.
you can also boost them
Which I just did with my mastodon account.
What does boosting do
It is like retweeting… unlike on Twitter you can’t add your own comments to the boost.
On twitter if you Like a tweet, then the algorithms pick it up and it may go ‘viral’. This doesn’t exist on the Fediverse. A Favorite / Like is just a heads-up to the author, who sees it as a notification. So boosting is what’s needed to spread posts to other people’s timelines.
@TimothyMcFuck Basically it re-share the post to your own timeline. Kinda like sharing the link to a post.
If you want to see an example in action, you can take a look at my mastoton profile
https://mstdn.fr/@narF
and you’ll see some posts that are from different users. These are posts that I boosted (re-shared)
@TimothyMcFuck friendca federates with pretty much everything including lemmy. As seen with this self demonstrating reply from the nerdica instance.
