1. Join the group (if you haven't already)
Go here and click "Join group": https://groups.google.com/g/video-shrinker-beta-testing
Use the Google account you want to test with. If you're already a member, skip to step 2.
2. Opt in as a tester (do this before downloading)
Click below and hit "Become a tester" — this unlocks the beta for your account:
https://play.google.com/apps/testing/io.github.dubsector.videoshrinker
Once you opt in, that page will show a Play Store install link — tap that directly.
3. Download the app
If the install link from step 2 doesn't show, or you're grabbing the app again later:
https://play.google.com/store/apps/details?id=io.github.dubsector.videoshrinker