Curated .NET, React, SQL, and system design content. Free, ad-light, and built for serious learners.
A short, curated email with the newest posts and questions.
PrepStack is a tech learning hub for developers. We publish long-form articles on .NET, React, AI/ML, and SaaS architecture — and a growing library of categorised interview questions with detailed answers across .NET, React, SQL, and system design.
No paywall, no fluff.
Hand-picked highlights worth your attention.
Engineering notes and long-form tutorials.
OnPush, trackBy, lazy loading, Signals, and standalone components — the Angular 19 performance playbook with real production metrics from Mattrx.
Webpack Module Federation vs Native Federation, independent deployments, versioning shared deps — the Angular micro frontends playbook from Mattrx.
Signals model state, RxJS models events over time — when to use each, performance numbers, and the interop pattern that uses both at the right boundary.
Real questions with detailed answers, ranked by difficulty.
Drill straight into a stack you care about.
When to reach for Minimal APIs, when to stick with controllers, and how to structure a maintainable codebase.
Stop fighting the new boundary. A short field guide for engineers shipping App Router apps.
Schema-per-tenant vs shared schema, edge caching, and how to defer paid infra until you actually need it.