I could be interested in writing one, having just written a semi complex wishlist management app with some overlap in user management features. Would nodejs suit a project like this do you think?
I'm more of a Flask, Phoenix and Rails type of guy but if you prefer using Node sure, you probably couldn't go too wrong if that's what you have extensive experience in.
Also a Rails guy but have found Node is quite a good fit for async work like managing email queues. Would use Phoenix but don't have enough production experience in it yet..