📡 Receiving Weather Forecasts from 433 MHz Sensors on Raspberry Pi with RTL-SDR
How to build a private weather monitoring system based on Raspberry Pi, RTL-SDR, MQTT, and NestJS that receives data from 433 MHz sensors and displays it in Grafana.
Symmetric Key Encryption for Health Data: MigrainePulse Security Architecture
Learn how MigrainePulse uses advanced symmetric key encryption (AES-256-GCM) and Cloudflare Workers to ensure absolute security and privacy for sensitive health data.
Migraine Pulse – moving data schema to backend
Learn how Migraine Pulse implemented a dynamic data schema in the backend. We added JSON schema validation, versioning, and reliable export/import functionality using NestJS.
OWASP in practice — auditing my NestJS monolith
How I performed a security audit of my own backend.