Self-Hosting for Beginners: Costs, Backups and Six Tools
Compare six self-hosted tools, plan the real running costs and design a reversible pilot with backup and restore checks before moving important data.
A practical guide to technology
Free courses, clear explanations and tools you can put to work. Find your way into AI, software development and better everyday technology.
Start where you are. Learn something you can use.
THE ACADEMY
Follow a course with a clear starting point and a next step.
BUILD FOR THE WEB
Work from HTML and JavaScript to APIs, databases, testing and deployment.
Explore the developer course →COMMUNICATE WITH CONFIDENCE
Find your level, practise everyday English, then move into professional communication.
Explore the English Academy →WORK WITH LANGUAGE AND DATA
Explore text analysis, machine learning and retrieval through projects and evaluation.
Explore the NLP course →Still deciding what to learn?
Explore 40 technology skill paths before choosing a direction.
KEEP THESE HANDY
Find a starting point for writing, research or coding.
Browse the library ↗ AI Terms ExplainedUnderstand the language behind the tools you use.
Open the reference ↗FROM THE GUIDEBOOK
The newest written guides, with video walkthroughs in their own section below.

Compare six self-hosted tools, plan the real running costs and design a reversible pilot with backup and restore checks before moving important data.

Build a read-only Python Wi-Fi checker for Windows, run a safe demo and eight tests, and understand errors without collecting saved passwords.

Test AI-generated code with a runnable Python bug fix, nine regression tests, deliberate bad repairs and a review checklist that protects existing behaviour.

Give Codex clear repository rules, check instruction scope and protect existing behaviour with specific task prompts, review criteria and regression tests.

Check AI citations against their actual sources, record what each passage proves and run a tested local Python checker for missing quotations and review gaps.

Collect a relevant Android crash trace, remove private data and use AI to form a diagnosis you can verify with reproduction steps and a small test.
MADE BY METACYBERGURU
Find the app, understand how it works, and follow the setup guide.
Simulate a GPS route for development and testing on your own Android device.
Explore Mock Location →Explore device information and ADB tools for devices you own or manage.
Explore ADB Nexus →Explore app locking and private photo storage, with setup and recovery guidance.
Explore Secure Folder →WATCH & TRY
Watch Android app demos and course walkthroughs, with written notes beside each video.
Explore the video library →THE PEOPLE BEHIND THE PAGES
MetaCyberGuru brings together technology courses, AI guides and Android apps. Explore the work and meet Muhammad Azhar, the creator behind the site.
Meet Muhammad Azhar ↗