Show HN: ZenScript – When you open Instagram, your textbook opens instead

ZenScript is an Android app that automatically redirects social media apps to your chosen reading material when you hit your daily time limits. Instead of showing a "blocked" screen, it seamlessly opens your ebook or textbook.

Built this after my wife and I kept getting distracted from German exam prep by endless scrolling. We tried every app blocker, but they all had friction - you'd see "blocked" and then manually have to open your study materials, which often broke our motivation.

The key insight: replace the habit rather than just block it. When you tap Instagram after your 30-minute limit, ZenScript intercepts the launch and opens your focus book instead. No friction, just automatic redirection from scrolling to learning.