Lemmy client that lets you use a Mastodon account

Probably an edge case, but I have a sweet Mastodon vanity username and I’d like to use the power of the Fediverse. Interacting with Lemmy from Mastodon itself is a little clunky (I acknowledge that it’s still early days!)

Is anyone developing a Lemmy client that lets you use a Mastodon account?

@general