Homelab Network Design: Building Your Own Miniature Data Centre at Home

Self-Hosted AI Security: What Every Ollama User Should Know

Right to Local Intelligence: Why Running AI on Your Own Hardware Matters

Cloudflare Self-Managed OAuth — What It Means for Your Homelab Security

Learning Docker by Building a Container Engine from Scratch

The Minimal Homelab That Actually Works

OpenCV 5 Computer Vision in Python for CS Students

Switch from pip to uv — Python's New Package Manager Guide

9618 Paper 1 Theory Fundamentals — AS CS Topic Guide

Debugging Python for A-Level CS — Tracebacks & Fixes

Self-Host Redis 8.8 with Docker Compose — Homelab Guide

Switch from pip to uv — Python's New Package Manager

Binary, Hex & Number Systems — Visual Guide for IGCSE CS

Python File Handling for IGCSE & A-Level CS — Examples

How to Set Up a Test Pipeline That Actually Catches Bugs

How to Set Up Hermes Agent on a Mini PC Home Server

🔒 0417/12 Paper 1 – Security, File Transfer & ATM Processing | June 2025

📝 0417/11 Paper 1 – Testing, Safety & Security | June 2025

📝 9618/12 Paper 1 – Databases, Data Structures & Algorithms | June 2025

📝 9618/22 Paper 2 – Records, Files & Programming Techniques | June 2025

📝 9618/22 Paper 2 – Algorithms, Data Structures & Sorting | June 2025

📝 9618/22 Paper 2 – Development Life Cycles, Maintenance & Testing | June 2025

📝 9618/12 Paper 1 – Assembly, Logic Circuits & Communication | June 2025

🖥️ 0417/12 Paper 1 – System Testing, Safety & Cybersecurity | June 2025

📝 0417/12 Paper 1 – Input Devices, Applications Software & Biometric Systems | June 2025

📝 9618/12 Paper 1 – Von Neumann, Number Systems & AI | June 2025

📝 0417/11 Paper 1 – Output Devices, Applications Software & Smartphones | June 2025

Why use indentation in Python

OSI Reference Model-Networking 101

Techie Mike — Tech Tutorials for Students & Homelab Enthusiasts

Practical tech tutorials for Cambridge CS/ICT students and homelab enthusiasts. I break down complex topics — VirtualBox, Proxmox, ethical hacking, Python, and exam prep — into clear, hands-on guides you can actually follow. No fluff, just real skills.

hardware • 13 min read

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Homelab Network Design: Building Your Own Miniature Data Centre at Home

# Homelab Network Design: Building Your Own Miniature Data Centre at Home My homelab started flat. One subnet. Every device — the Proxmox host, the Docker containers, the media server, the WiFi light bulbs — all splashing around in the same 192.168.1.0/24 pool. It worked. Until it didn't. The mome…

Techie Mike • 07 Jul 2026

security • 7 min read

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Self-Hosted AI Security: What Every Ollama User Should Know

# Self-Hosted AI Security: What Every Ollama User Should Know In May 2026, a GitHub issue reported that two production Ollama servers had been compromised by an attacker who pulled six malicious models onto them. No authentication check, no registry allowlist, no integrity verification. Just a curl…

Techie Mike • 06 Jul 2026

AI coding assistant • 8 min read

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Right to Local Intelligence: Why Running AI on Your Own Hardware Matters

# Right to Local Intelligence: Why Running AI on Your Own Hardware Matters A manifesto hit the front page of Hacker News last week with a title that stopped me mid-scroll: "[Right to Local Intelligence](https://righttointelligence.org/)." Around the same time, Jamesob's [guide to running SOTA LLMs…

Techie Mike • 05 Jul 2026

Self-Hosting Toolkit: 10 Apps I Actually Use Every Day

linux • 8 min read

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Self-Hosting Toolkit: 10 Apps I Actually Use Every Day

# Self-Hosting Toolkit: 10 Apps I Actually Use Every Day Every homelab goes through the same cycle. You start with one service. Then you discover three more. Then you're running 25 Docker containers and half of them haven't been touched in six months. I know because I did it. Last year I audited m…

Techie Mike • 30 Jun 2026

SSH Tunnels: A Practical Guide for Homelab Users and CS Students

linux • 10 min read

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SSH Tunnels: A Practical Guide for Homelab Users and CS Students

# SSH Tunnels: A Practical Guide for Homelab Users and CS Students There's a moment every homelab user hits. You're away from home, staring at a coffee shop Wi-Fi login page, and you need to check your Proxmox dashboard. Or you want to share your Jellyfin server with a friend, but it's behind your…

Techie Mike • 29 Jun 2026

Self-Hosted LLMs with Docker, Ollama, and Open WebUI

linux • 12 min read

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Self-Hosted LLMs with Docker, Ollama, and Open WebUI

# Self-Hosted LLMs with Docker, Ollama, and Open WebUI Cloud AI is convenient. Open a browser, type a prompt, get an answer. But it comes with three things that bug me: API bills that surprise you at the end of the month, rate limits that kick in when you're in the middle of something, and the know…

Techie Mike • 28 Jun 2026

You're the OS: Teaching Process, Memory, and I/O Management Through Gaming

tutorial • 7 min read

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You're the OS: Teaching Process, Memory, and I/O Management Through Gaming

# You're the OS: Teaching Process, Memory, and I/O Management Through Gaming I teach [Cambridge IGCSE and A-Level Computer Science](https://www.cambridgeinternational.org/). Every year, the examiner reports say the same thing: candidates struggle with operating system functions.…

Techie Mike • 27 Jun 2026

security • 7 min read

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Cloudflare Self-Managed OAuth — What It Means for Your Homelab Security

# Cloudflare Self-Managed OAuth — What It Means for Your Homelab Security On June 3, 2026, Cloudflare quietly launched something that flew under most homelab radars: self-managed OAuth clients. The announcement landed on the [Cloudflare Fundamentals changelog](https://developers.cloudflare.com/fund…

Techie Mike • 26 Jun 2026

High School to Homelab — A Student's Linux Journey

linux • 7 min read

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High School to Homelab — A Student's Linux Journey

# High School to Homelab — A Student's Linux Journey Last week, a high school student posted on [r/homelab](https://www.reddit.com/r/homelab/). i5-6500T. 40TB NAS. ThinkPad X13 running Proxmox. Looking for advice on his setup. The best way to learn is to try and fail.…

Techie Mike • 23 Jun 2026

linux • 13 min read

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Learning Docker by Building a Container Engine from Scratch

# Learning Docker by Building a Container Engine from Scratch If you've used Docker for any length of time, you've probably internalized the vocabulary. Images. Containers. Dockerfiles. `docker run -d --name my-app nginx`. It works. You ship code. Everyone's happy. But here's a question: what actu…

Techie Mike • 21 Jun 2026

The Chat Graveyard — Export & Learn from AI Conversations

Python • 12 min read

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The Chat Graveyard — Export & Learn from AI Conversations

# The Chat Graveyard — How to Export, Search, and Learn from Your AI Conversations I counted recently. Across ChatGPT, Claude, Hermes Agent, and a couple of other tools I've tried and abandoned, I've accumulated well over 2,000 AI conversations.…

Techie Mike • 21 Jun 2026

hardware • 7 min read

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The Minimal Homelab That Actually Works

# Am I Overcomplicating This? — The Minimal Homelab That Actually Works Scroll through r/homelab for ten minutes and you'll see server racks that look like data center colocations. 42U cabinets. Enterprise switches with SFP+ cages blinking amber. Dual Xeon boxes drawing 400 watts.…

Techie Mike • 17 Jun 2026

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Techie Mike

Computer Science teacher in Thailand. 10+ years Cambridge IGCSE, 4 years AS/A Level. BSc Computer Science & Engineering. Ex-Intel, Virgin Media. Practical exam prep, past paper walkthroughs and tech tutorials.

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Techie Mike — Tech Tutorials for Students & Homelab Enthusiasts

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