Hey HN, Oli here, Software Engineer for 7+ years now,

I've been building developer courses for my open learning platform and decided to open-source all the lesson content.

What's inside:

- 15 React courses (hooks deep dive, server components, performance, testing, patterns...) - 6 Next.js courses (app router, API patterns, i18n, auth, optimization) - 4 TypeScript courses (advanced types, architecture, production patterns) - All with TypeScript code examples and links to official docs - More courses on modern technos

The repo is organized by technology → course → section, each lesson is a clean markdown file you can read directly on GitHub.

What content I'm planning to add: - Skills roadmaps - Public technical tests repositories - Most famous newsletters per technos - Am I missing something?