Advent of Code 🎄

Quickstart

• cp .envrc.example .env-secret && direnv allow (keeps secrets out of git; .envrc is checked in and will load .env-secret; set AOC_SESSION, toggle AOC_OFFLINE when traveling)
• bin/newday --day 1 --year 2025 to scaffold and fetch input; add --skip-spec to avoid generating specs, --wait to sleep until unlock
• bin/run 2025 01 --part 1 to execute a solution; add --repl to drop into Pry after timing

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