So, here’s something I’ve been building for the upcoming cruising season:
https://bergie.iki.fi/blog/electronic-logbook/

This is a Signal K plugin that provides both the backend and user interface for maintaining a digital logbook. Automation includes hourly entries, as well as entries for trip start/end, motor on/off, etc.
Log entries can be added and viewed from any web-capable device on the boat network, and the system adds all relevant telemetry from Signal K to the entries (things like coordinates, wind, barometer, …)



The entries are kept as simple human and machine readable YAML files on disk for easy backup and analysis with other software. The system also has a REST API to support custom integrations.

Source code at https://github.com/meri-imperiumi/signalk-logbook