I've modified a Gem that I use in my Rails app, and need to use it on Heroku. Is there a way to upload the modified Gem to Heroku within my app and specify a custom path in my Gemfile?
in Gemfile: gem 'blah', :git => 'https://github.com/XXX/YYY.git'
gem 'blah', :git => 'https://github.com/XXX/YYY.git'