Show HN: A simple open-source tool to help you blink more often

I built this simple tool to nudge me to blink more often because my eye-sight deteriorated fast soon after I started learning to code.

Help needed:

currently I'm only using color change to nudge users to blink more. I don't have any biology background but there should be more effective ways. Love to brainstorm together.

Repo is here: https://github.com/GoodluckH/blink-more