Learn about Tech: Programming, Computers, and AI

How I set up 12 Reolink PoE cameras with an NVR on an isolated VLAN. No cloud, no internet access, no exposed ports — local-only surveillance done right.

Lefteris OikonomouAugust 1 2026

Follow my complete smart home series covering networking, VLANs, UniFi, Raspberry Pi, TrueNAS, Home Assistant, WireGuard, cameras, and self-hosting. Learn the design decisions, trade-offs, and lessons from building a modern developer home lab

Lefteris OikonomouJuly 30 2026

How I set up TrueNAS on a mini PC for family file storage, Plex media streaming, automated downloads, and backups.

Lefteris OikonomouJuly 29 2026

How I replaced my ISP DNS with a Raspberry Pi 5 running AdGuard Home. Network-wide ad blocking, local DNS records, and full visibility across all VLANs.

Lefteris OikonomouJune 11 2026

Why I stopped running everything on one flat network and how I split my home into 6 VLANs on UniFi — IoT, cameras, services, guests, and more.

Lefteris OikonomouJune 10 2026

How I set up a UniFi Cloud Gateway behind my ISP router, why double NAT broke things, and how bridge mode gave me a clean public IP and full control.

Lefteris OikonomouJune 7 2026

How I planned Cat6 cables, keystones, conduits, and fiber paths before the walls were sealed. A practical guide to home network wiring you can't redo.

Lefteris OikonomouJune 1 2026

How building a home lab with VLANs, Docker, NAS, and smart home automation made my life better and improved me a software engineer.

Lefteris OikonomouJune 1 2026

Stay adaptable as a software engineer by mastering first principles thinking and pattern recognition to. Learn to deeply understand core concepts, adapt to any technology, and build evergreen engineering skills.

Lefteris OikonomouMarch 13 2025

See the salary of a developer. Find out how the developer's specialty affect his salary. Discover the first salary for a programmer.

Lefteris OikonomouJanuary 28 2025

Explore the different developer types. From Fronted to AI and security. Uncover their key skills andthe challenges of landing the first job. Guide from an insider!

Lefteris OikonomouJanuary 8 2025

Looking for a developer role? Discover the ultimate guide to landing your first developer job in 2025, packed with insider tips, strategies, and real-world advice.

Lefteris OikonomouJanuary 8 2025

Μάθε τι είναι API εύκολα και γρήγορα. Δες παραδείγματα και αναλογίες για API. Ανακάλυψε τα οφέλη, την ασφάλεια και τατα είδη των API.

Lefteris OikonomouApril 26 2024

Discover what an algorithm is, why it's crucial in various fields like computer science, and explore examples of algorithms in daily life.

Lefteris OikonomouMarch 18 2024

Learn about the strengths and vulnerabilities of Artificial Intelligence. Discover how AI will save your life and make you more productive!

Lefteris OikonomouMarch 14 2024

Discover everything about Artificial Intelligence (AI) - its definition, applications. Learn how AI is transforming industries and what it means for the future.

Lefteris OikonomouMarch 2 2024

Discover the ultimate productivity hack for computer users. Learn how to type with 10 fingers and drastically save your time and enhance efficiency in your daily tasks. Perfect for students and professionals alike

Lefteris OikonomouNovember 6 2022