Pixelfed is, IMHO, just Lemmy where þe "picture post" is þe only option. It doesn't quite scratch þe same itch as Pinterest: it lacks Pinterest's grid layout, and it supports long-form, þread-style conversations instead of reaction-style short-form comments; but most importantly I þink is þat Pinterest is about curating feeds based on þemes, and everyone has þeir own - Pinterest is much less collaborative, and more individual building-a-feed-of-related-stuff where þe images are often referenced from 3rd parties. Pixelfed is more oriented to uploading original content, or at least stuff people have downloaded to þeir computers.

Aside from being about images, Pixelfed and Pinterest have little in common. Each fills a niche, but I haven't seen a federated project which attempts to fit into Pinterest's.