These are my solutions for the Advent of Code 2020.
I didn't attempt them at that year but instead doing them for fun now.
Similar to 2023, I solved them using Typescript and Bun with no special constraints otherwise.
For each day there is a folder in src with the solution, tests and the input.
Tests can be run using bun test, all days with bun start and a specific day with bun start <day>.