ruby installation instructions

[yanlisa]

For local installation, would be great to suggest options for installing rbenv locally to avoid conflicts with global ruby installs.

Some suggested resources:

• https://stackoverflow.com/questions/66645381/installing-ruby-with-ruby-install-causes-build-error-on-mac-m1
• For OS X homebrew: brew upgrade ruby-build; rbenv install 3.3.9 (or whatever ruby version is currently specified in .ruby-version)

[cycomachead]

Use this, IMO. I'd generally not recommend rbenv at this point, though it does work OK.

brew install mise

mise install ruby@3.3.9

[pancakereport]

Hahaha meanwhile I'm using chruby...