Privacy
| Precise coordinates sent to the server | 0 |
| What the server knows about the place | geohash-4 (≈ ±20 km) |
| Geo field encryption | XChaCha20-Poly1305 |
| Key location | on your device only |
| Web version collects GPS | on explicit action, for a log entry |
| Logbook photos | EXIF stripped, ciphertext on the server |
Coordinates appear in the web client only on an explicit action: you pick the place for a logbook entry. In clear text the point stays in the browser; the server receives the geohash-4 region (≈ ±20 km) and the encGeo blob, which only your device’s key opens. The monitor location is entered manually and rounded to a 0.1° cell (≈ 11 km) before any weather request.