It may be a meme, but using Gentoo for the first time. I did Linux From Scratch in a VM and it piqued my curiosity. Although I would prefer Nix or Guix due to their interesting declarative approach, I decided to go for Gentoo so I can have a better understanding of how to tweak the heck out of a real system.

Also, probably getting more up-to-date on C++. I have let my skills slack, and some of the new things in C++20 seem intriguing. The only issue here is finding a good project to work on. Doing interview-style problems is basically "how to use the standard library proficiently in the scope of one file, and probably just ~5 methods", and other things seem difficult to approach. This seems very different from the clear progression one finds in other popular languages.

(If anyone has any suggestions for such projects, please do share. I could use some help)