Not sure if there is anything progressive about this but it's small, has a manifest so it will supposedly get cached, and is installable I think. Wrote it for s

Not sure if there is anything progressive about this but it's small, has a manifest so it will supposedly get cached, and is installable I think. Wrote it for similar reasons, sick of ads. https://greggman.github.io/interval-timer/ https://greggman.github.io/interval-timer/