This year I'm doing it in Zig!
By request of AoC creator, I haven't included the input files (e.g.
src/input/day01.txt). Log into the Advent of Code
site and save the inputs there to the
src/input/ folder.
Then to run: zig build run.
To run in super-fast prod mode: zig build -Drelease-fast run.
To run the tests against included test input files: zig build test.