To-Do Ruby On Rails Application ---- Lost Link

Yesterday I found an open source project for an ROR application which
was a multi-user todo-like app. I seem to have lost the URL. All I can
remember about it was that it was open source, had a lot of
activity/downloads, and allowed the user to create categories…

I know I’m not giving much but I’m hoping someone here can think of
something.

Thanks,
Ben

Likely you mean Tracks, an RoR implementation of David Allen’s Getting
Things Done.

Likely you mean Tracks, an RoR implementation of David Allen’s Getting
Things Done.