Setting up Rails for the first time with all the dependencies necessary can be daunting for beginners. Docked Rails CLI uses a Docker image to make it much easier, requiring only Docker to be installed.

Install Docker (and WSL on Windows). Then copy'n'paste into your terminal:

docker volume create ruby-bundle-cache
alias docked='docker run --rm -it -v ${PWD}:/rails -v ruby-bundle-cache:/bundle -p 3000:3000 ghcr.io/rails/cli'

Then create your Rails app:

docked rails new weblog
cd weblog
docked rails generate scaffold post title:string body:text
docked rails db:migrate
docked rails server

That's it! Your Rails app is running on http://localhost:3000/posts.

If you'd like to have the standard Ruby and Rails bins available without writing docked before each command, you can add them as aliases:

alias rails='docked rails'
alias rails-dev='docked bin/dev'
alias bundle='docked bundle'
alias yarn='docked yarn'
alias rake='docked rake'
alias gem='docked gem'