Rails is an easy framework to pick up, and you'll get to love all of the magic it does for you. Some of that can be a little confusing at first but once you've got acquainted, this is part of the productivity Rails offers as opposed to other languages or frameworks that sometimes tend to require developers to waste a ton of valuable time setting up their own boilerplate when starting to work on a new project. More pragmatically, Rails is still extremely popular at both startups and at large companies, you can use it to power web applications, or backend APIs, and this will be extremely valuable on your resume. There also is a very large/rich set of libraries (called gems) that will allow you to focus on your actual project/product, rather than rebuilding what already exists. I'd recommend you go with the latest versions of Ruby (3.0) and Rails (6.1.1) so you are from the get-go learning them in their most current form.