deno run --allow-read --allow-write main.ts --new-day
# With a day specified
deno run --allow-read --allow-write main.ts --new-day 2
deno run --allow-read main.ts
# with a day and part specified
deno run --allow-read main.ts 2 1
# or in watch mode
deno run --watch --allow-read main.ts 2 1
deno test --allow-read
# or in watch mode
deno test --watch --allow-read