Modern software engineering, from system to production.

Start Source code

This is not just about learning to code. It’s about learning to keep real software alive.

This guide is a practical map to help you become a trusted software engineer.

It doesn’t just focus on syntax or “making it run.” The focus is on how to think, design, build, version, deploy, observe, secure, and maintain systems that run in production — systems that real people depend on.

You’ll work through real examples, guided exercises, and practices used in the industry today: service development, data handling, automation, security, operating under pressure, and technical collaboration.

Open and collaborative

All content lives in an open repository. You can read it, review it, improve it, or propose fixes directly from GitHub.

Each chapter is a living unit — not a frozen PDF.

Learn by building

Every section includes hands-on work: designing a service, writing operational scripts, covering it with tests, deploying it, and observing it.

No isolated theory. Everything has a concrete, verifiable application.

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Quality, security, and operations

The end goal is not “it runs,” it’s “it survives.”

That includes error handling, traceability, security, change control, technical review, and professional responsibility in production.