After seeing many Advent of Code repositories I can upload my code as well. It is not polished or anything, only my own trial-and-error driven way to get through the puzzles.
The first year I decided to set aside time and join the Advent of Code.
Written in Python 3. Some days got lost when copying between different laptops.
For 2021 I chose Golang, because I have not used it for about 5 years now. I hope I remember a few things.
I started the 2015 puzzles later as a way to write my very first Code in Kotlin.
I go with Kotlin again. I am kind of stressed out, so I do not want to lean a completely new language but also do not want Python or Golang again.