AdventOfCode2020 To run tests continuously: watchexec -c -p -e 'ex,exs,lock' -- mix test To add a new day: pbpaste | mix day.new day_XX_name Credit As I learn Elixir using Advent of Code, the following implementations have been super helpful: https://github.com/jaminthorns/advent-of-code-2020 https://github.com/scmx/advent-of-code-2020-elixir