I teach at the School of Information Technologies at TalTech (Tallinn University of Technology). Before the academy, I worked as a software developer for over thirty years, mainly in healthcare. My main interest is software engineering, specifically in software quality, model-based development, agile methodologies, and software engineering education. Together with my doctoral, master and bachelor students, we are working for the next generation of EHR (Electronic Health Record) primary and secondary use technologies that we call SmartEHR Technologies. The core of this technology is solely person-owned and person-controlled EHR-s, which only persons have the right to share with others either for primary use (diagnoses and care) or for FAIR (findable, accessible, interoperable, and reusable) secondary use (research, clinical trials, public health, policy-making, etc.). The main challenges in this project are federated semantic interoperability of EHR data, data integrity and transparency, data security and privacy. We use ASP.NET Core, Blazor, Azure and Ethereum Swarm technologies.