Here's some discussion on a related idea: https://github.com/rails/rails/commit/2dfff4d31634d669f4c198c4fb85b59d39477862#comments https://github.com/rails/rail

Here's some discussion on a related idea: https://github.com/rails/rails/commit/2dfff4d31634d669f4c198c4fb85b59d39477862#comments https://github.com/rails/rails/commit/2dfff4d31634d669f4c198... In that case, the "offered" dependency was on the mysql2 gem. The intent was similar (don't want to force users of ActiveRecord to install DB adapters they don't use) but ran into an unexpected situation when the generated Gemfile entry didn't have a version constraint but the runtime-loading code did.