Advent of Code Solutions

I've been doing AoC to try and brush up on langauges I haven't used in a long time or to learn languages I don't know, so expect these to be a bit rough:

• 2021: re-learning javascript after may years, so learning all the new features since ES5 or so, really.
• 2022: learning rust while reading The Book and getting help from friends.
• 2023: did I forget everything I learned about rust last year? let's find out! also not doing these daily, just whenever.