Learn the system,
not the spell.
Practical guides that move from first principles to production decisions. Pick a subject and follow the chapters in order, or jump directly to what you need.
Web framework / 29 chapters
Next.js App Router
Routing, rendering, data, caching, security, SEO, testing, and production architecture from beginner to advanced.
Open guide Architecture / 6 chaptersMicroservices
Boundaries, communication, data ownership, reliability, observability, security, and production operations.
Open guide Repository systems / 6 chaptersMonorepos
Workspace design, dependency graphs, caching, CI, testing, versioning, ownership, and migrations.
Open guide