zM SOS GUARD is a forensic Android recording protocol. I built it for journalists and activists who need absolute data sovereignty. No cloud, no bloat, no tracking. The 500Kb APK uses native code to fragment video into 20s blocks, pushing them directly to your private Python server. Designed to bypass battery kills and ensure forensic persistence (tested up to Android 16). Fully open-source, auditable, and built for transparency. Check the source on GitHub and see the documentation on my site.
"Hi everyone! I’m the developer behind zM SOS GUARD.
I built this because I wanted a mobile security tool that isn't bloated or reliant on third-party cloud trackers. It’s a 500Kb 'vanilla' Android project that uses a high-priority foreground service to ensure forensic-grade video capture, even under harsh battery management.
I'm really interested in your feedback on the architecture—especially how you handle background service persistence on recent Android versions. The code is fully open-source and MIT-licensed.
Looking forward to your thoughts!"
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