https://techcrunch.com/2022/04/29/zen-pre-seed-posture-correction/ > Are you slouching at your desk again? There’s an app for that… Zen uses posture mirroring software to help information workers stop hunching over their desks — sending alerts when it detects you’re not sitting up straight so you can correct your posture and, hopefully, avoid a lifetime of back problems. > The catch? It uses your webcam to check on your posture. So, er, you have to be comfortable with Zen’s software ‘watching’ through the lens as you work.