FirstCheck — Clinical Desktop Platform on Electron

Overview

FirstCheck is a desktop platform for clinical diagnostics — software that sits in a lab, talks to physical analyzer machines, computes risk scores that clinicians act on, and must keep patient data encrypted at rest. Correctness and auditability are non-negotiable, which shaped every technical decision.

Architecture

• Electron main-process services communicating with the renderer over structured IPC.
• Encrypted SQLite persistence with versioned schema migrations.
• A deterministic TypeScript risk-calculation engine — same inputs always produce the same auditable outputs.
• Role-based access control across the application, plus report and export flows.

Talking to lab hardware

The platform connects directly to LIS systems and lab analyzers over serial protocols. I implemented message framing, CRC validation, and retry handling, with native serial bindings in both Node and Python.

Licensing

I designed ERP-backed licensing with node-locking, so deployments are provisioned, tracked, and enforced from the company's ERP system.