It's not super busy, but I'm not sure if it needs to be. There have been commits on it to handle 5.1: https://github.com/RailsApps/rails-composer/commit/7088e05e7... .

I'll be honest, I use it a lot if I want to spin up a new Rails application and go through a quick CLI picking databases/auth approaches/test frameworks.

The only other tool I would consider looking at for this is Thoughtbot's Suspenders but at this moment I have no pain points with rails-composer.

In case I'm not the only one who likes to use it, I've added it to CodeTriage just now in case anyone would like to be involved in supporting this project. https://www.codetriage.com/railsapps/rails-composer