I have a feeling that many of you folks would get a kick out of this: Advent of Code 2020
It’s a series of 50 programming puzzles - two each day in December - presented in a really fun way with an integrated story.
You take input data in plaintext and use any language you like to solve each puzzle. You could even do it using a Glitch project!
Sign in with GitHub or another OAuth, and you can take part right away! I’m playing catch up so I’m on Day 5 
I didn’t make this, I just thought a lot of you would like it. Hope you enjoy it!