Pomodoro
Press Start for 25 minutes of focus; a bell moves you on to a break, both lengths can be changed, and today's rounds show as dots.
使用したツール
制作方法
Written with Claude Code as a single web page with no libraries; the bell is booked on the sound card's clock the moment you press Start, so it rings on time even when the tab is in the background and the browser slows its timers.