MerVare
mervare.app · mervare.io · since 2026A marina system that knows whether the berth is actually free.
- Problem
- Finding a berth in the Baltic still means calling a harbourmaster on VHF and hoping someone answers, while the harbour itself runs on a paper book and a phone.
- System
- A two-sided product: mervare.app is sailor-facing, mervare.io is the marina back office, and every harbour gets its own subdomain, branding and operator accounts. A full booking state machine with role-based access sits behind it, Stripe Connect moves money straight to the harbour rather than through me, and a custom Go/ESP32 bridge into a Victron Cerbo GX over EMQX MQTT is built to report whether a berth is physically occupied — so availability can be verified by a sensor rather than by a form someone forgot to update.
- My part
- I designed the data model and the booking state machine, built both products and the hardware bridge, and operate the live pilot.
- Live pilot: hara.mervare.app — Hara harbour, Gulf of Finland
- First version: 5 days, 206 commits — auth, payments, booking state, MQTT, hardware bridge
- Model: 5% commission plus marina SaaS



