A Timer and a Soundtrack, One Tab
The usual study setup is a pomodoro timer in one tab and a ten-hour rain video in another, until the video buffers, an ad interrupts at minute 47, or the loop seam jolts you out of flow. This timer generates the sound itself: real synthesized rain and noise from the Web Audio API, mathematically endless, zero files. The sound starts with each focus block and stops for breaks, so your brain learns the association: rain on, words out.
Choosing Your Block Length
The classic 25/5 suits task-switching days and homework; 50/10 fits deep work where 25 minutes barely gets you warmed up; the 90/20 ultradian preset matches the body’s natural attention cycle for writing and coding marathons. Whichever you pick, guard the long break: it is the difference between four good blocks and a burned-out afternoon. The daily counter keeps score; for shared work sessions on a projector, the fullscreen mode shows the countdown ad-free, and the classroom timer covers simple one-off countdowns.
