Minerva is a WIP "personal database" designed to track all kinds of things in your life for you.
It is intended to be self-hosted, since much of the information stored will be private. Access is provided via API keys to the API serving up the data, and the data can be stored in a number of various DBs (initially supporting SQLite).
Interfacing with the data will be done via various UIs (mobile, webapp, TUI, etc.)
The entire system has tagging enabled, which allows for powerful filters of information quickly.
The system is based on a set of "categories" of object/relational information.
Notes, dates, passwords, employment history, housing history, recipes, links.