WebSocket — From Polling to Direct Connections: Why Real-Time Applications Need This Protocol
Some time ago, I just made a simple page to display live server logs. The initial idea was just to refresh the page every 5 seconds using…
Digital Sabbath — Why I Deliberately Turn Off the Screen
There is one moment that I often repeat without realizing it: opening my eyes in the morning, my hand immediately reached for my cell pho…
Log Management for Home Server — Collecting Logs from journald, rsyslog, to Loki
There was a moment where a service on the home server suddenly went down, but I didn't know where to start looking. Open a terminal, type s…
RAG — Retrieval Augmented Generation: Why LLMs Need Reference Books Before Answering
A few months ago, I was proud to have a local AI Assistant who could answer everyday questions. Ask about Nginx, he answers. Ask about Pyth…
Docker Compose for Home Server — From a Single YAML File to a Clean-Running Service
Several years ago, when I first used a used laptop as a home server, I spent hours just making sure one web application could run. There is…
Self-Hosted VPN for Home Servers — WireGuard vs Tailscale, Which One to Choose?
Self-Hosted VPN for Home Server — WireGuard vs Tailscale, Which One?There is one moment that I often experience when I am away from home: s…
Digital Burnout — Recognizing the Signs of Burnout in the Age of Always Connected
Sometimes I open my laptop with the intention of doing one small task, only to realize three hours later that I've just finished a YouTub…
Digital FOMO — When is the Right Time to Log Off from the Information Flow?
A few nights ago, I found myself caught in an all-too-familiar ritual: opening my phone to just check the time, then suddenly realizing tha…
Digital Stoism — Finding Calm Among Notifications, Expectations, and Uncertainty
Some time ago, I found myself staring at my phone screen in the middle of the night. The screen lit up with another notification, then anot…
Buffer Overflow — A Simple Explanation for Beginners Who Want to Learn Cyber Security
In the past, when I first read the CTF write-up with the word buffer overflow, I felt like I was witnessing magic: someone could change the…