I created accounts on Lemmy and Mastodon, thinking to replace both reddit and Twitter, but I’m able to see my Lemmy account and its posts by searching on Mastodon. However I’m not able to log in to the Mastodon app with my Lemmy username.
The apps for Lemmy are still super new and not very reliable- is there any chance of being able to browse and post on Lemmy servers using the Mastodon app instead?
Lemmy and Mastodon servers are capable of speaking to each other using the ActivityPub protocol, but they present substantially different APIs and user interfaces to the end user. There is no way to use a Lemmy app to log in to a Mastodon instance, or vice versa.
Mastodon has no concept of communities whatsoever, nor any features which derive from them (like community level moderators, or directing your comments towards various communities instead of your timeline). It doesn’t distinguish between “posts” and “comments.” Its moderation / reporting system works very differently. Media uploading, alternate text, etc work very differently. and so on and so on.
Comments / replies can be seen/shared from one platform to another, but the various ways users interact with them are quite different.