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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.
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Hand-picked highlights worth your attention.
Engineering notes and long-form tutorials.
Part 2 of a 14-year ASP.NET series: LINQ, EF Core, and SQL Server done right — where the boundary runs, the EF habits, and reading the plan.
Part 1 of a 14-year ASP.NET series: why clean code isn't enough, the OOP that matters, and how SOLID changed the systems I build.
Mattrx runs Azure Service Bus, Event Grid, and Kafka side by side. The decision framework, real code, and exactly when to pick each.
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.