Much-needed app, thanks for the same. For some time, I have been thinking about a similar app for the simple requirement of sounding every 25 to 30 minutes while working on a computer just to give rest to the eyes, but I was unable to find a suitable one. The "offline-first PWA with zero dependencies; no build step, no cookies, no links, no analytics, nothing other than timers" gives it a really usable coat for both desktop and mobile
Hahaha, thank you for "quoting the full name".
It's mostly a "toy app / learning experience" at this point, but I'm glad it may provide even the tiniest bit of value to others.
Sadly on mobile seems to be fairly useless due the OS killing the worker, but I'll try to wrap it in a native app.