[BUG] Template fails when running `next bundle install`

[arielj]

Version, Branch, or Commit:

Main branch

Expected behavior:

The generator should complete execution with the app with correct dual booting setup.

Actual behavior:

The generator fails when running next bundle install with this error:

         run    next bundle install from "."
The git source https://github.com/rails/rails.git is not yet checked out. Please run `bundle install` before trying to start your application

Steps to reproduce:

Create a new rails app using the template.

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