Learn System Design

A from-scratch system design track for developers re-skilling - core concepts, question breakdowns, patterns, key technologies and advanced topics, each a focused lesson with its own sidebar and reading progress.

5 sections

The Robot Whisperer

A from-scratch C++ course that teaches the language and then uses it to move real things - lights, motors, and a connected, secure ESP32 smart lock. 12 modules, a numbering-systems interlude, and a capstone.

12 modules + capstone

Projects Track

Four sellable automations built on the course - an RFID card lock, an animated LED signpost, remote/app-controlled lighting, and an ESP32-CAM photo doorbell - each with wiring, firmware and a business angle.

4 projects + business module

Smart-Home Engineering Roadmap

The level-by-level path from fullstack engineer to a smart-home hardware business - electronics, PCB design, enclosures, smart-home protocols, cloud/app, robotics, security and manufacturing.

Levels 0–10

C++ Complete Notes

A scannable C++ reference - your first program through variables, control flow, arrays, functions, pointers and dynamic memory, to structs, enums and OOP. Copy-paste examples for every concept, plus a cheat sheet.

38 topics + cheat sheet

Networking, Explained From Scratch

From the cable on your desk to VPNs, TLS, DNS and load balancers - 18 core concepts, each with a diagram, a plain-language analogy and a real example.

18 concepts

Learning Go

Go from the ground up - the language, its concurrency model, and the patterns I use to ship one backend to web, desktop and mobile.

DevOps Learning

A structured DevOps path - Git, Docker, CI/CD and the infrastructure skills that turn code into something that actually runs in production.

LeetCode Prep

A structured plan to prepare for FAANG interviews in JavaScript and Go - every core pattern with explanations, complexity analysis, and practice exercises.

JS + Go