[jeremy_k]

Use asdf (https://asdf-vm.com/) to manage your Ruby versions.

You should be able to do

$ asdf plugin add ruby

$ asdf list all ruby (you'll see 3.4.1, the latest is available)

$ asdf install ruby 3.4.1

And now you can use Ruby 3.4.1 with no issues. Follow that up with

$ gem install bundler

$ gem install rails

$ rails new ...

[d_sc]

Like psychoslave suggested, try out mise (https://github.com/jdx/mise). I used asdf for years, did the switch to mise and have never looked back for package management. It supports a huge number of languages and is performant.

[psychoslave]

Or mise, https://mise.jdx.dev/

[LAC-Tech]

Thanks for this.

I used to use ruby a lot - mostly just because it's the nicest language for scripting things on unix. I can remember trying to get it set up a year or so ago and finding the process difficult (think I was using rvm).

https://github.com/rbenv/ruby-build/wiki#suggested-build-env...

probably good idea to point people here before they install ruby, since it'll compile for minutes then tell you it's missing a dependency, and you have to start the whole process over.