SPEDION Navigation
Navigation for trucks. I work on it all the time, from new features and bug fixes to the notification engine.
Navigation for trucks is its own thing. Height and weight limits, roads you're not allowed to take, and drivers who really don't want surprises.
I'm one of the people who are in this codebase pretty much every week. I build new features, fix bugs and helped build core parts of the app.
The part I'm proudest of is the notification engine: it decides which hints a driver gets along the route, when to show them, and how to show them without getting in the way of someone driving 40 tonnes.