Exercise: Three Things at Once

Exercise: Three Things at Once: Exercise: Three Things at Once.

Updated November 10, 2026

1. Exercise: Three Things at Once (Freelancer): Write three tools for a day's work on Bluebird Bakery's website: three-panes.sh sets up the server, the tests rerunning in watch and a free terminal in one tmux session, wait-for-site.sh waits for the site and gives up at a time limit, and resize-all.sh resizes photos four at a time, while a check script tells you what's done.