https://github.com/tldev/posturr

Posturr is a macOS app that blurs your screen when you slouch. I’ve always had bad posture at my desk, so I wanted to figure out a way to check myself. This idea is not radically new, but the methods by which Posturr reminds, e.g. blurring screen, colored border, is unique and effective.

Recently released to the App Store at: https://apps.apple.com/us/app/posturr-posture-monitor/id6758...