Your Ruby is a little bit rusty? Or maybe you want to learn Ruby one challenge at a time?
Go to this web site: https://courses.alexgama.io/course?courseid=ruby-coding-challenges-course
Alex Gama is the instructor and he create free 30 Ruby video challenges.
And it's not just 30 videos, with each challenge you have accompanying materials:
- very pro videos
- code snippets
I am not affiliated in any way to this web site but I did the challenge and find those videos very well done and I learn a lot.
So... Challenge accepted?
Good luck :-)