You’d need to create another account, pixelfed is currently working on a “login with mastodon” feature that will probably be released pretty soon, but even with that you’re still technically creating another account, you’ll just be able to log into it using a mastodon account and copy your bio, profile pic, follows, and things like that if you want.

But yeah, there’s nothing for lemmy

They are working on mastodon integration

Always a new account with Federation

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