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Terraform - AWS

A brief tutorial on terraform

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Terraform - AWS

A brief tutorial on terraform

Lets Revise Javascript - 1

The JavaScript concepts interviewers use to make people fail: closures, this, prototypes, the event loop, coercion, and hoisting, with tricky output puzzles.

Next.js Caching in 2026: From the Four-Layer Model to use cache

A beginner-to-advanced guide to Next.js caching: the four cache layers, the RSC payload, Cache Components, and when revalidateTag beats updateTag.

Node.js Memory, Garbage Collection & Production Failures

How Node.js memory really works: the V8 heap, garbage collection, memory leaks, OOM crashes, and diagnosing it all in production on EC2 and ECS.

Authentication and Authorization, Explained: The Interview-Ready Deep Dive

A beginner-to-advanced guide to authentication and authorization: password hashing, sessions vs JWTs, access and refresh tokens, OAuth 2.1, and passkeys.