RVM on Pages
Pages uses RVM to select which ruby version to use to build a Pages site.
Default Ruby version
By default, the build will use Ruby version 3.1.4.
Specifying a Ruby version
Prior to building a site, the build will check for a file named .ruby-version. If one is found, it will use RVM to install and use the version specified there.
For example, if you wish to use Ruby version 3.2.2 to build a site, add a new file named .ruby-version to your repository. The .ruby-version file should be at the top-level directory. The contents of that file should be "3.2.2".
The minimum allowed version for Ruby is 3.0.6