I will make a separate Pixelfed Groups app, considering it's significantly different than our core photo/video sharing feature
Pixelfed Groups have their own notifications, main feed and data structures
A separate app would benefit in many ways, including easier group administration, simpler UI and support for non-core features like markdown, link preview cards and more!
Once I finalize the API this weekend, any other MastoAPI compatible server will be able to use the groups app too!