How to generate a new rails app with a specific Rails version

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My goal is to create a new app with the 5.2 Rails version.
rbenv versions
ruby -v

gem list rails --local
Output

If you get nothing, it's because there's no Rails version associated with your current Ruby version.
gem search '^rails$' --all
Output

gem install rails -v '5.2' -V --no-document
Output

gem list rails --local
Output

rails -v
Output

rbenv rehash
Output

rails _5.2.0_ new myapp-backend --api
Output

cd app_name

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