In 2017 I got lucky to be part of the team who makes EHealth a reality. The work is still ongoing, but we've already learned a lot of bitter lessons. The talk will be focused solely on technical side of things, particularly and most notably: the usage of microservices. I will explain the stack we're using, particularly the usage of Elixir, Docker and Kubernetes. I will go into details regarding many aspects of the development process that were found problematic when working on microservice architecture, and show how we resolve or get around the problems. As an added bonus – all of our work is open-sourced! Everyone can take a look at what we’re making, and even take part in the development!