Using a Gem Like Trestle

Hey there,

Just curious as to how you would see implementation with a gem like trestle? It seems like it would be a matter of overriding a few modules with Jets equivalents but I also still see Rails in the Jets code however it doesn’t work with Jets and just gives this:

bundler: failed to load command: jets (/Users/me/.rbenv/versions/2.5.5/bin/jets)
NoMethodError: undefined method `application' for Rails:Module
  /Users/me/.rbenv/versions/2.5.5/lib/ruby/gems/2.5.0/gems/trestle-0.8.13/lib/generators/trestle/install/templates/trestle.rb.erb:6:in `template'