TRACKS
Pick a subject.
Then take it one concept at a time.
Each track is a sequence of phases. Lessons inside a phase use the same read, run, and review rhythm.
4 PHASES
JavaScript
34 lessons across four phases. Clear explanations, focused examples, and room to test your understanding.
34 LESSONS · Foundations / Intermediate / Advanced / Real-World
3 PHASES
HTML & CSS
Semantic documents, CSS layout, and the browser tools that show why a page looks or behaves wrong.
16 LESSONS · HTML / CSS
2 PHASES
AI-Native
Six lessons on learning, prompting, verifying, and reviewing with AI in the loop — plus AI Lab judgment exercises.
06 LESSONS · Learning with AI / Judgment under AI
2 PHASES
React
Eight lessons on components, state, effects, and the review habits that make a React codebase readable.
08 LESSONS · Components / Application
3 PHASES
Git & GitHub
Twelve lessons on snapshots, branches, and a pull request, practiced in a terminal that stores your real repository.
17 LESSONS · Git Fundamentals / GitHub Workflow / Team Simulation
9 PHASES
Node, Express & MongoDB
Node, Express, and MongoDB, then REST design, backend structure, document modeling, request hygiene, observability, and AI endpoints.
26 LESSONS · Node.js fundamentals / Express fundamentals / MongoDB fundamentals / REST API Engineering / Backend Architecture / Data Modeling & Performance / API Security Fundamentals / Debugging & Observability / Backend Meets AI
5 PHASES
Authentication & Security
Who is calling, what they may do, and the concrete failures that show up when those checks are missing.
19 LESSONS · Authentication Fundamentals / Modern Auth Patterns / Authorization & API Security / Common Vulnerabilities & Defenses / Security as Practice