Writing

Blog

Technical articles about web development, cloud architecture, and software engineering best practices.

Building FhirHub: A Modern Healthcare Data Platform

Tech

Featured

Feb 1, 2026

Building FhirHub: A Modern Healthcare Data Platform

An open-source FHIR R4 clinical data platform with SMART on FHIR auth, role-based access, and bulk export.

Read full article→

Tech

Single-Node k3s Deployment

How to deploy the entire FhirHub stack on a single machine using k3s, a lightweight Kubernetes distribution ideal for small clinics, staging environments, and demo servers.

Feb 3, 2026

Tech

Monitoring with Prometheus, Grafana, and Loki

FhirHub's observability stack: Prometheus for metrics, Grafana for dashboards and alerting, and Loki for log aggregation -- fully self-hosted and Kubernetes-native with no vendor lock-in.

Feb 3, 2026

GitOps Deployment with ArgoCD

How ArgoCD deploys FhirHub across environments using GitOps -- ApplicationSets for multi-environment management, sync waves for dependency ordering, and continuous reconciliation.

Feb 3, 2026

Kubernetes Packaging with Helm Charts

How FhirHub is packaged for Kubernetes using Helm -- an umbrella chart with sub-charts for each service, a library chart to eliminate duplication, and per-environment values files.

Tech

Feb 3, 2026

CI/CD Pipelines with GitHub Actions

FhirHub's GitHub Actions CI/CD pipelines: reusable workflows, pull request validation, Docker image publishing, and security scanning to catch vulnerabilities before production.

Tech

Feb 3, 2026

Docker Multi-Stage Builds and Compose Strategy

The start of a 5-part DevOps series covering Docker multi-stage builds for small, secure images and a three-file Compose strategy that separates dev from production environments.

Feb 3, 2026

HAPI FHIR Server Setup and Configuration

How FhirHub configures and runs HAPI FHIR as its clinical data store in Docker with PostgreSQL, covering server settings, .NET API integration, and production considerations.

Tech

Feb 3, 2026

Keycloak Configuration for FHIR Applications

How FhirHub configures Keycloak as its identity provider. Realm setup, client configuration, role mapping, JWT claim transformation, and auto-imported realm exports for reproducibility.

Tech

Feb 3, 2026

Building a FHIR Frontend with Next.js

How FhirHub's Next.js 16 frontend is structured with 60+ components, App Router route groups, DaisyUI theming, and a layered architecture that keeps FHIR complexity out of the UI.

Tech

Feb 2, 2026

Docker Compose for Healthcare Applications

A breakdown of FhirHub's Docker Compose setup: five services with health checks, dependency ordering, volume management, and network isolation for running a full healthcare stack locally.

Tech

Feb 2, 2026

The .NET 8 API Gateway Pattern

How FhirHub's .NET 8 API gateway handles authentication, authorization, rate limiting, security headers, and DTO mapping -- ensuring the frontend never talks to HAPI FHIR directly.

Tech

Feb 2, 2026

Bulk Data Export: Wizard, Jobs, and FHIR Standards

FhirHub's bulk data export system features a 4-step wizard, asynchronous job processing, and support for NDJSON, JSON Bundle, and CSV formats for analytics, reporting, and data migration.

Tech

Feb 2, 2026

Clinical Reference Ranges and Interpretation Codes

FhirHub implements clinical reference ranges based on AHA, ADA, and KDIGO guidelines to automatically compute FHIR interpretation codes, turning raw measurements into actionable clinical context.

Tech

Feb 2, 2026

Vitals Charting with Recharts

How FhirHub uses Recharts to render interactive vital signs charts with reference range overlays, multi-vital selection, and time filtering so clinicians can spot trends at a glance.

Tech

Feb 2, 2026

FHIR Resources: Patient, Observation, and Beyond

An overview of the FHIR R4 resources FhirHub uses -- Patient, Observation, Condition, MedicationRequest, and more -- with LOINC codes, typed DTOs, and the API translation layer.

Tech

Feb 2, 2026

SMART on FHIR Authentication with Keycloak

How FhirHub implements SMART on FHIR authentication using Keycloak with PKCE-secured Authorization Code flow and a fine-grained RBAC matrix controlling access to clinical resources.

Tech

Feb 2, 2026

Getting Started with FhirHub

A step-by-step guide to running FhirHub locally with Docker Compose and Node.js. Clone the repo, start five services, seed clinical data, and log in to the dashboard in minutes.

Tech

Feb 2, 2026

FhirHub Architecture Deep Dive

A deep dive into FhirHub's five-service Docker architecture. How PostgreSQL, HAPI FHIR, Keycloak, and the .NET 8 API gateway communicate, handle authentication with SMART on FHIR, and process patient data through the repository pattern.

Blog

Building FhirHub: A Modern Healthcare Data Platform

Single-Node k3s Deployment

Monitoring with Prometheus, Grafana, and Loki

More Articles

GitOps Deployment with ArgoCD

Kubernetes Packaging with Helm Charts

CI/CD Pipelines with GitHub Actions

Docker Multi-Stage Builds and Compose Strategy

HAPI FHIR Server Setup and Configuration

Keycloak Configuration for FHIR Applications

Building a FHIR Frontend with Next.js

Docker Compose for Healthcare Applications

The .NET 8 API Gateway Pattern

Bulk Data Export: Wizard, Jobs, and FHIR Standards

Clinical Reference Ranges and Interpretation Codes

Vitals Charting with Recharts

FHIR Resources: Patient, Observation, and Beyond

SMART on FHIR Authentication with Keycloak

Getting Started with FhirHub

FhirHub Architecture Deep Dive