Yes, a bit technical. I downloaded a test site and looked how things worked and tried do it in Webflow.
I ran into two road bumps I have not solved(and have not tried for a while either).
One is a settings file where you can redirect users. Say someone is trying to reach a locked page they should be redirected to the login page. On my test page I hide that content instead.
Two is more design related. Some input fields needs to have some custom attributs to work correctly. In Webflow you need to fill both input fields out. And for this angularjs to work you only need one. Because of this restriction I had to copy 'n paste a whole form(login form for ex) wich makes it harder design. You can of course design it and else where on you site and just use that class, but one thing you love about webflow is the design part and you want to see how it looks right away.
I've talked to the staff about the custom attribut thingy but never got a clear answer if they will or can fix it.
If this not makes any sense at all, ask away. I don't have time to do a full tutorial even if it would be fun =)
Another note would be that it's quiet in the community over at userapp. You wonder if it is a abandon ship.