Eerst Hulp Bij Abonnementen (EHBA)

One of my first projects for learning programming and navigating around the digitale sphere was building a visualization based on transport data. As I use public transport for all travel I naturally wanted to know how I spend my money on it. This question has been popping in and out of my mind ever since and more recently I had some time to tinker again. This time I was wonder if I could recommend subscriptions based on historical data from a person.