Smaller, same guarantees. ~9 MB (down from 20 MB) via R8 + resource shrinking.
Install
Download airlock-2.1.1.apk, enable install-unknown-apps, open it. Min Android 8.0 (API 26).
Verify: sha256sum -c airlock-2.1.1.apk.sha256. Confirm no network access in Settings → Apps → Airlock → Permissions.
Changes
- R8 code + resource shrinking (~20 MB → ~9 MB). PDFBox/Compose fully kept; build, UI and PDF/scrub code paths verified under R8.
- GitHub Actions CI (tests + no-INTERNET assertion) and a signing-gated release workflow.
- F-Droid metadata + build recipe prepared.
Signed; cert SHA-256 37e2b50c7679e61ff4108f3076a128de05a7e26c548215e02e0ff500c6e5ffef. Apache-2.0.