Integrating one app into another

Hi, my name’s Ryan B., you may know me as Radar or “that guy who
created rBoard”. Today I wish to ask: how do you integrate one app
into another? Lots of people have come to me and asked the question of
rBoard but I can’t really help them since I can’t find an easy way to
do it. Ideas?

You should look at rails engines for this.

Seems a good way to go - how about having a branch of rboard that is
the exact same as rboard, just jiggled around to be a plugin?

i can’t see many problems with it being a plugin. Rails seems to have
plugins with app functionality sorted, though you might have to think
about routes and assets