This is my digital garden. Many of these notes started as a problem I had to solve: a bug, a design decision, a tool that behaved differently from its documentation. Others are reference pages and copies of the source documents they quote.
The notes are in English and take a few forms: field notes from a fix or an experiment, descriptions of processes I use, case studies, and reference pages such as the comparison of deployment strategies. They are working notes, so their depth varies with how much the problem needed.
I am Dawid Ryłko, a software engineer and IT architect with more than ten years of experience, based in Bielsko-Biała, Poland. My work spans software architecture and engineering practice, DevOps, IoT and security, and lately the practical use of AI in software systems.
What it covers
The largest part is operations: deployment strategies, CI/CD pipelines on GitHub Actions, health checks, mail routing and a homelab. Next to it sit Git, frontend and backend notes on Angular, TypeScript and TypeORM, and a few computer science basics. The IoT notes follow my home automation setup with Homebridge, Mosquitto and Zigbee2MQTT, plus starting points for Home Assistant. The security notes take apart real techniques and vulnerabilities, such as hiding data in Unicode or a PDF.js CVE, and the AI notes record what language models do with a prompt.
Knowledge catalog
| Category | Description | Tags |
|---|---|---|
| Development | Software development principles and practices | dev |
| AI | Artificial intelligence concepts and implementations | ai |
| Basics | Fundamental computer science concepts | basics |
| Cryptography | Cryptographic methods and applications | crypto |
| Frontend | Web frontend technologies and patterns | frontend |
| Git | Version control and collaborative development | git |
| IoT | Internet of Things solutions and implementations | iot |
| Operations | DevOps, deployment, and system operations | ops |
| Security | Cybersecurity practices and research | sec |
Contact
I am open to discussions, collaboration and consulting. You can reach me here: