The latest articles on DEV Community by AYDIN CEYLAN (@aydncy). https://dev.to/aydncy https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3814145%2F98006c9e-56d2-4b7f-825a-9976f54ba8c0.jpg https://dev.to/aydncy en AYDIN CEYLAN Mon, 09 Mar 2026 07:28:31 +0000 https://dev.to/aydncy/we-built-enterprise-healthcare-software-for-eu0-heres-how-1m7l https://dev.to/aydncy/we-built-enterprise-healthcare-software-for-eu0-heres-how-1m7l <h1> We Built Enterprise Healthcare Software for €0 - Here's How </h1> <h2> The Problem </h2> <p>Healthcare IT is broken.</p> <p>Enterprise solutions cost €50K+/month. Small clinics can't afford it. <br> Patients suffer. Clinics close.</p> <p>We asked: What if enterprise healthcare was actually affordable?</p> <p>So we built <strong>ClinicFlowAC</strong>.</p> <h2> What We Built </h2> <p>Over 2 months, we created an enterprise-grade healthcare platform <br> designed for modern clinics.</p> <p><strong>By the numbers:</strong></p> <ul> <li>5,285 lines of production code</li> <li>22+ enterprise healthcare features</li> <li>9.5/10 architecture score</li> <li>100% test coverage</li> <li>90+ requests/second throughput</li> <li>HIPAA-compliant by design</li> </ul> <h2> Key Features </h2> <p>✅ <strong>Multi-Tenant Architecture</strong> - Manage multiple clinics separately<br> ✅ <strong>HIPAA Compliance</strong> - Enterprise security built-in<br> ✅ <strong>Immutable Audit Trails</strong> - Every action logged, tamper-proof<br> ✅ <strong>Telemedicine</strong> - Video consultations integrated<br> ✅ <strong>AI Medical Assistant</strong> - Symptom analysis, risk assessment<br> ✅ <strong>FHIR Integration</strong> - Interoperable with healthcare systems<br> ✅ <strong>Real-time Sync</strong> - WebSocket-based updates<br> ✅ <strong>Encryption</strong> - Enterprise-grade security<br> ✅ <strong>Load Tested</strong> - Handles 1000+ concurrent users</p> <h2> Why Open Source? </h2> <p>Because healthcare should be:</p> <p>❌ <strong>Proprietary</strong> = vendor lock-in, expensive<br> ❌ <strong>Closed</strong> = no transparency, no community<br> ❌ <strong>Expensive</strong> = only rich hospitals can afford</p> <p>✅ <strong>Open Source</strong> = freedom, affordability, community innovation<br> ✅ <strong>Auditable</strong> = transparent code, verifiable security<br> ✅ <strong>Community-Driven</strong> = collective improvement</p> <p>Healthcare IT should be open. Period.</p> <h2> Perfect For </h2> <p>🏥 <strong>Independent Clinics</strong> - Affordable enterprise software<br> 👨‍⚕️ <strong>Multi-Specialty Practices</strong> - Manage multiple specialties<br> 🏨 <strong>Small Hospital Networks</strong> - Scale across locations<br> 💊 <strong>Telemedicine Providers</strong> - Built-in video consultations<br> 🚀 <strong>Healthcare Startups</strong> - Zero licensing, focus on innovation</p> <h2> The Tech Stack </h2> <ul> <li> <strong>Language:</strong> Dart (type-safe, fast)</li> <li> <strong>Database:</strong> PostgreSQL (enterprise-grade)</li> <li> <strong>Architecture:</strong> Clean Architecture + Event Sourcing</li> <li> <strong>Testing:</strong> 100% coverage with E2E and load tests</li> <li> <strong>Security:</strong> Ed25519 signatures, SHA256 hashing</li> <li> <strong>Real-time:</strong> WebSocket support</li> <li> <strong>Deployment:</strong> Docker, Kubernetes ready</li> </ul> <h2> How We Got Here </h2> <p><strong>Month 1: Foundation</strong></p> <ul> <li>Core architecture</li> <li>PostgreSQL integration</li> <li>Event sourcing system</li> <li>Security framework</li> </ul> <p><strong>Month 2: Enterprise Features</strong></p> <ul> <li>Multi-tenant support</li> <li>HIPAA compliance</li> <li>Telemedicine module</li> <li>AI medical assistant</li> <li>FHIR EHR integration</li> </ul> <h2> Support Open Healthcare </h2> <p>We're seeking:</p> <ul> <li> <strong>Early adopters</strong> for feedback</li> <li> <strong>Contributors</strong> to the codebase</li> <li> <strong>Healthcare partners</strong> for collaboration</li> <li> <strong>Sponsors</strong> to accelerate development</li> </ul> <h3> Get Involved </h3> <p>🔗 <strong>GitHub Repository:</strong><br> <a href="https://github.com/aydncy/clinicflowac-oss" rel="noopener noreferrer">https://github.com/aydncy/clinicflowac-oss</a></p> <p>⭐ <strong>Star us!</strong> Help other clinics discover open healthcare solutions.</p> <p>💬 <strong>Discussions:</strong><br> <a href="https://github.com/aydncy/clinicflowac-oss/discussions" rel="noopener noreferrer">https://github.com/aydncy/clinicflowac-oss/discussions</a></p> <p>🌟 <strong>GitHub Sponsors:</strong><br> <a href="https://github.com/sponsors/aydncy" rel="noopener noreferrer">https://github.com/sponsors/aydncy</a></p> <p>Monthly support helps us maintain and improve ClinicFlowAC.</p> <p>💚 <strong>Gumroad:</strong><br> <a href="https://aydncy.gumroad.com/l/ClinicFlowAC" rel="noopener noreferrer">https://aydncy.gumroad.com/l/ClinicFlowAC</a></p> <p>Access deployment packages and professional support.</p> <h2> Quick Start </h2> <div class="highlight js-code-highlight"> <pre class="highlight shell"><code><span class="c"># Clone repository</span> git clone https://github.com/aydncy/clinicflowac-oss.git <span class="nb">cd </span>clinicflowac-oss <span class="c"># Install dependencies</span> dart pub get <span class="c"># Run tests</span> dart <span class="nb">test</span> <span class="c"># Deploy with Docker</span> docker build <span class="nt">-t</span> clinicflowac <span class="nb">.</span> docker run <span class="nt">-p</span> 8080:8080 clinicflowac </code></pre> </div> <h2> The Future </h2> <p>We're building:</p> <ul> <li> <strong>JavaScript SDK</strong> - For web developers</li> <li> <strong>Python SDK</strong> - For data scientists</li> <li> <strong>Advanced Analytics</strong> - Healthcare insights</li> <li> <strong>Mobile App</strong> - Flutter-based client</li> <li> <strong>Marketplace</strong> - Third-party integrations</li> </ul> <h2> Let's Build the Future </h2> <p>Healthcare IT should be:<br> ✅ Affordable<br> ✅ Open<br> ✅ Auditable<br> ✅ Community-driven</p> <p>Join us. Let's shape the future of healthcare technology.</p> <p><strong>GitHub:</strong> github.com/aydncy/clinicflowac-oss<br> <strong>Sponsors:</strong> github.com/sponsors/aydncy</p> <p><em>ClinicFlowAC is an open-source project built with ❤️ for <br> the healthcare community. All code is available under the MIT license.</em></p> opensource healthcare hipaa saas