FHIR.sk
← Back to home

About FHIR.sk

A personal FHIR interoperability lab. The purpose is simple: become a practical expert in HL7 FHIR, healthcare interoperability, and EHDS through hands-on implementation.

What FHIR.sk Is

FHIR.sk is a FHIR Interoperability Lab — a controlled, personal environment for experimenting with HL7 FHIR R4 standards, tools, and integration patterns. It runs a real HAPI FHIR server, uses real FHIR resources, and follows the actual FHIR specification.

The learning objective is concrete: achieve practical expertise in FHIR sufficient to architect and implement FHIR-based systems in production — including systems compliant with the European Health Data Space (EHDS) regulation.

All data in this lab is synthetic. Fictional patient names, fictional identifiers, fictional clinical records. No real patient data is used, stored, or processed at any point.

Core Philosophy

1

Learn By Implementation

Build before discussing theory. A working HAPI FHIR server teaches more about FHIR than three hours of reading the specification. Theory follows practice.

2

Architecture Before Coding

Always explain the WHY before the HOW. Every component should have a clear reason for existing. No accidental complexity.

3

Simplicity First

Docker Compose, not Kubernetes. A single HAPI FHIR server, not a microservices cluster. The simplest thing that works is the right starting point.

4

FHIR First

Everything is built on FHIR. Not a proprietary data model that maps to FHIR later. FHIR resources are the primary data model from day one.

5

AI Last

AI tools come after mastering FHIR foundations. You cannot use AI effectively in a domain you do not understand. Understand FHIR first. Use AI to accelerate after.

Tech Stack

Frontend

Next.js 15, App Router, TypeScript, Tailwind CSS v3

FHIR Server

HAPI FHIR R4 (v7-tomcat), PostgreSQL 16

Local Infra

Docker Compose

Cloud Deploy

Vercel (web), Railway (FHIR)

FHIR Version

R4 (primary), R4B noted

What FHIR.sk Is NOT

  • A production healthcare system
  • An Electronic Health Record (EHR) platform
  • A national or regional health information platform
  • Affiliated with NCZI (Národné centrum zdravotníckych informácií)
  • Affiliated with HL7 Slovakia
  • Affiliated with the Slovak Ministry of Health
  • Affiliated with any hospital, clinic, or healthcare provider
  • A system that processes real patient data — EVER

For the full legal disclaimer, see the Disclaimer page.