Blog
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Jotai Complete Guide | Primitive Flexible React State Management
Complete Jotai guide for React state management. Learn atoms, derived state, async patterns, and building scalable applications with this minimalist library.
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JWT Authentication Guide | Access Tokens, Refresh Tokens, Security & Node.js
Implement secure JWT authentication in Node.js. Covers JWT structure, access/refresh token patterns, HttpOnly cookies vs localStorage, token rotation, revocation strategies, and common security mistakes to avoid.
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Apache Kafka Complete Guide | Producers, Consumers, Topics & Node.js
Build event-driven systems with Apache Kafka. Covers core concepts, topics and partitions, producer/consumer patterns, consumer groups, offset management, Node.js integration with kafkajs, and production best practices.
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Koa.js Complete Guide | Next Generation Node.js Framework
Complete Koa.js guide for modern Node.js applications. Learn async/await, context object, middleware composition, and building REST APIs with this lightweight framework.
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Kotlin Coroutines vs Threads | Concurrency Model, Cost, and When to Use Which
Complete comparison of Kotlin coroutines and OS threads: lightweight concurrency, memory overhead, scheduling, structured concurrency, Dispatchers, perf...
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Kubernetes Deployment with minikube | Node.js API, Deployment & Service
Run a local Kubernetes cluster with minikube, load container images, apply Deployment and Service manifests, port-forward, and debug ImagePullBackOff—ku...
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Kubernetes Pod Troubleshooting Guide | Debug CrashLoopBackOff, OOMKilled, Pending
Diagnose and fix common Kubernetes pod issues. Covers CrashLoopBackOff, OOMKilled, ImagePullBackOff, Pending, and network problems with kubectl commands.
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Kubernetes Practical Guide | Pods, Deployments, Services, Ingress & Helm
Deploy and operate applications on Kubernetes. Covers Pods, Deployments, Services, ConfigMaps, Secrets, Ingress, resource limits, HPA, PersistentVolumes, Helm, and production troubleshooting patterns.
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LangChain Complete Guide | LLM Apps, Chains, Agents, RAG
Build LLM-powered apps with LangChain. Covers Chains, Agents, Memory, RAG, and Vector Stores with practical Python examples. Start building today.
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Linux & Mac Command Cheatsheet for Developers | Terminal, Network & Debugging
Essential Linux and macOS terminal commands for developers. Covers file management, grep/awk/sed text processing, network debugging (curl, netstat, ss), process management, log analysis, and real-world troubleshooting scenarios.