My wife needed a cycle tracker. Everything out there was either Flo (which got sued twice for sharing health data) or an abandoned GitHub project. So I built Ovumcy. Single Go binary, SQLite, Docker-ready. No analytics, no third-party APIs, no cloud. Your data stays on your server. Features: period tracking, symptom logging, predictions (ovulation, fertile window), statistics, CSV/JSON export, dark mode, Russian and English. Just pushed v0.2.5. Looking for feedback from real users.


No, we didn’t ship it without security hardening.
We already hardened the main sensitive parts:
sealed auth/recovery/reset/flash cookies no auth or recovery secrets in URLs or JSON POST + CSRF logout basic browser security headers CodeQL, gosec, Trivy, and SBOM in CI What’s still missing is a strict CSP. That’s not a one-line switch here because the current frontend still needs some refactoring first.