I did something similar with a Telegram bot in order to remind myself to look away from the screen, get up and stretch for a bit. However I started to ignore it in favor of "more pressing" tasks and now the chime has become just a faint signal somewhere on the outer edge of my awareness, too easily forgotten about.
You need to condition yourself to not ignore it or it will lose its effectiveness.
bmacho|9 months ago
But a just an hourly subtle sound can *just remind you that time passes.