I'm doing my Advent of Code 2022 in Rust this year.

To add a day use Cargo Generate to generate a crate for that day:

$ cargo generate --name day02 --path ./template

Add the new day to the workspace Cargo.toml:

[workspace]
members = [
    "day01",
    "day02", # Day 2!
]

To run a specific day:

$ cargo run --bin day02