https://github.com/erdogany/chime

Take a break away from your computer regularly using this app. You can customise the active/break times as you want to achieve a balanced screen time.

I used to use an app called Bowl which would give bell like sound when I have been in front my computer too long. But then it was discontinued. So I made this app so I remember to take a bit of time off to reset my mind and my body. I find myself at better solving complex problems just after a break... So here it is; so you can use it too...