Redis
8 min read·Jul 15, 2026
Redis Pub/Sub Explained - Build Real-Time Apps with Redis
Understand Redis Pub/Sub internals and use it to build real-time features like chat, notifications, and live updates.
THE LIBRARY
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Explore practical engineering articles, from framework fundamentals to shipping smarter systems.
60 articles found
System Design
12 min read·Feb 25, 2026
Distributed Caching: Redis, Eviction Policies, and Stampedes
Master the architecture of a Distributed Cache like Redis or Memcached. Understand Cache-Aside patterns, LRU/LFU eviction policies, and preventing Cache Stampedes.
System Design
12 min read·Feb 20, 2026
Location-Based Services: Uber, Yelp, Geohashing, and Quadtrees
Architecture of proximity services like Uber, Yelp, or Tinder. Learn how to query geospatial data efficiently using Geohashing and Quadtrees.
System Design
14 min read·Feb 15, 2026
Video Streaming Architecture: Netflix, Transcoding, and Edge CDNs
Architecture of a video streaming platform like Netflix or YouTube. Covers video chunking, DASH/HLS protocols, DAG transcoding pipelines, and CDN edge delivery.
System Design
13 min read·Feb 10, 2026
Designing a News Feed: Fanout-on-Write vs. Fanout-on-Read
Architecture of a News Feed system like Twitter or Instagram. Deep dive into Fanout algorithms, hybrid approaches for celebrities, and CDN media delivery.
System Design
11 min read·Feb 5, 2026
Designing a Notification System: Gateways, Queues, and Idempotency
Architecture of an enterprise notification system capable of sending millions of Push, SMS, and Email alerts. Covers message queues, rate limiting, and idempotency.
System Design
12 min read·Feb 1, 2026
Distributed Web Crawler: Seed URLs, Politeness, and DOM Parsing
Architecture of a large-scale Web Crawler like Googlebot. Learn about BFS traversal, URL frontiers, robots.txt politeness constraints, and deduplication.
Career
7 min read·Jan 29, 2026
Google AdSense for Developers: How to Monetize Your Tech Blog
Prepare a technical blog for advertising while keeping the reading experience and policy compliance first.
Performance
8 min read·Jan 28, 2026
How to Optimize Website Performance for Better Core Web Vitals
Improve loading, responsiveness, and visual stability with a measurement-led performance workflow.
Career
10 min read·Jan 27, 2026
Complete Frontend Developer Roadmap for 2026
A practical path from HTML and CSS foundations to modern frontend application development.
AI
8 min read·Jan 26, 2026
Best Free AI Tools for Developers in 2026
A practical way to assess free AI tools for coding, research, testing, and documentation.
Next.js
9 min read·Jan 25, 2026
How to Create an SEO-Friendly Next.js Blog Using MDX
Build a static MDX blog with strong metadata, structured data, RSS, and a fast reading experience.
System Design
14 min read·Jan 25, 2026
Distributed Key-Value Store: DynamoDB, Consistent Hashing, and CAP Theorem
Explore the internal architecture of distributed Key-Value stores like Amazon DynamoDB or Cassandra. Covers Consistent Hashing, Vector Clocks, and the CAP theorem.
Career
9 min read·Jan 24, 2026
DSA Roadmap for Beginners: Crack Coding Interviews Faster
A realistic roadmap for learning data structures and algorithms through deliberate practice.
Linux
18 min read·Jan 23, 2026
Top 50 Linux Commands Every Developer Should Know
Learn the Linux commands that make navigation, files, processes, and networking easier.
DevOps
8 min read·Jan 22, 2026
GitHub Actions Tutorial: Automate Your Workflow with CI/CD
Create a dependable GitHub Actions workflow for testing, checking, and deploying code.
Backend
7 min read·Jan 21, 2026
Firebase vs Supabase: Which Backend Should You Choose?
Compare Firebase and Supabase by data model, authentication, hosting, and team needs.
Next.js
10 min read·Jan 20, 2026
How to Build a Full-Stack Application with Next.js
Plan a full-stack Next.js application with routes, data boundaries, validation, and deployment.
System Design
15 min read·Jan 20, 2026
Designing a Chat System: WebSockets, Presence, and Message Queues
Explore the architecture behind messaging apps like WhatsApp or Discord. Covers WebSocket connections, online presence indicators, and message delivery guarantees.
AI
8 min read·Jan 19, 2026
Cursor AI Complete Guide: Features, Tips, and Best Practices
Use Cursor AI effectively with focused context, clear prompts, and disciplined review.
AI
9 min read·Jan 18, 2026
Best AI Coding Assistants Compared: ChatGPT, Claude, Cursor, and GitHub Copilot
Compare popular AI coding tools by workflow, context, privacy, and review discipline.
Mobile Development
8 min read·Jan 17, 2026
React Native vs Flutter: Which Is Better in 2026?
Compare React Native and Flutter across language, ecosystem, UI, and team fit.
Next.js
9 min read·Jan 16, 2026
How to Deploy a Next.js App on Vercel
Deploy a Next.js application to Vercel with a dependable production workflow.
React
11 min read·Jan 15, 2026
React Performance Optimization: 15 Proven Techniques
Improve React performance with measurement-first techniques that keep code maintainable.
System Design
14 min read·Jan 15, 2026
Designing an API Rate Limiter: Algorithms, Redis, and Distributed Throttling
Master the architecture of API Rate Limiters. Covers Token Bucket, Leaky Bucket algorithms, Redis Lua scripts, and handling race conditions in distributed systems.
Developer Tools
7 min read·Jan 14, 2026
Top 25 VS Code Extensions Every Developer Should Install
A focused list of VS Code extensions that improve formatting, navigation, testing, and workflow.
System Design
10 min read·Jan 13, 2026
System Design Basics Every Software Engineer Should Know
Build a practical mental model for availability, scale, data, and system trade-offs.
Open Source
6 min read·Jan 12, 2026
How to Make Your First Open Source Contribution on GitHub
Find a welcoming project, make a useful contribution, and submit your first pull request.
Docker
8 min read·Jan 11, 2026
Docker for Beginners: Learn Containers from Scratch
Learn what containers solve and how Docker makes development environments repeatable.
Git
9 min read·Jan 10, 2026
Git and GitHub for Beginners: Complete Step-by-Step Guide
Learn the essential Git workflow and confidently collaborate with GitHub.
System Design
12 min read·Jan 10, 2026
Designing a URL Shortener: Capacity, Base62 Encoding, and Caching
Learn how to design a highly scalable URL Shortener (like TinyURL or Bitly). Covers requirements, Base62 encoding algorithms, Hash Collisions, and read-heavy caching.
Node.js
9 min read·Jan 9, 2026
How to Build Your First REST API with Node.js and Express
Build a small, well-structured REST API with Express and understand each moving part.
TypeScript
6 min read·Jan 8, 2026
TypeScript vs JavaScript: Which Should You Learn in 2026?
Compare JavaScript and TypeScript and choose the right starting point for your goals.
JavaScript
7 min read·Jan 7, 2026
JavaScript Array Methods Every Developer Should Master
A practical guide to map, filter, reduce, find, and the other array methods used every day.
Next.js
10 min read·Jan 6, 2026
Next.js App Router: Everything You Need to Know
Understand layouts, pages, server components, and routing in the modern Next.js App Router.
React
8 min read·Jan 5, 2026
React Hooks Explained: A Complete Beginner's Guide
Learn React Hooks from first principles with practical patterns you can use today.
DSA
13 min read·Oct 22, 2025
Graph Traversals: Node Exploration, Matrices, and Shortest Paths
Understand adjacency list representations versus matrices, Breadth-First Search (BFS) shortest paths, and Depth-First Search (DFS) topological sorting.
DSA
12 min read·Oct 15, 2025
Hash Maps Under the Hood: Collisions, Chaining, and Resizing
Deep dive into hash functions, cryptographic vs non-cryptographic hashes, collision resolution using chaining or open addressing, and load factor resizing.
DSA
12 min read·Oct 8, 2025
Binary Search: Boundary Conditions, Lower Bounds, and Monotonic Spaces
Master the subtleties of binary search index management, avoiding infinite loops, computing lower/upper bounds, and searching through monotonic decision spaces.
DSA
14 min read·Oct 1, 2025
Sorting Visualized: Comparisons, Stability, and Non-Comparison Sorts
Master sorting algorithms including Quicksort, Mergesort, and Timsort. Learn time complexities, memory trade-offs, stability, and non-comparison sorting techniques.
DSA
12 min read·Sep 24, 2025
Recursion & Backtracking: State Spaces, Memoization, and N-Queens
Master call stack recursion mechanics, base cases, state space search using backtracking, and dynamic programming optimization via memoization.
DSA
14 min read·Sep 20, 2025
Hierarchical Data: Traversing Binary Trees, BSTs, and Tries
Explore hierarchical structures, pre-order/in-order/post-order traversals, Binary Search Tree properties, self-balancing trees, and Tries.
DSA
12 min read·Sep 14, 2025
Deep Dive into Queues: FIFO Buffers, Ring Buffers, and Deques
Master queue behavior, implementation trade-offs using Circular Arrays versus Linked Lists, and how queues manage network traffic and system buffers.
DSA
12 min read·Sep 10, 2025
Understanding Stacks: LIFO Behavior, Memory Frames, and Monotonic Patterns
Learn core stack properties, how to build them using dynamic arrays or linked lists, call stack memory mechanics, and the advanced Monotonic Stack algorithm pattern.
DSA
12 min read·Sep 5, 2025
Demystifying Linked Lists: Traversal, Pointers, and Reversal
Understand singly and doubly linked list architectures, pointer manipulation, and step-by-step algorithms like linked list reversal and cycle detection.
DSA
12 min read·Sep 1, 2025
Mastering Arrays: Contiguous Memory and Dynamic Scaling
Understand contiguous memory constraints, the complexity of indexing versus insertions, multidimensional memory layout, and how dynamic arrays scale behind the scenes.
Next.js
7 min read·Aug 5, 2025
Error Handling in Next.js: From Components to the Edge
How to handle errors at every layer of a Next.js app — error.tsx, not-found.tsx, server action errors, and global error boundaries.
Next.js
8 min read·Jul 15, 2025
TypeScript Patterns for Next.js: Types That Actually Help
Practical TypeScript patterns for Next.js — typing params, searchParams, server actions, fetch responses, and component props correctly.
Next.js
10 min read·Jul 1, 2025
Testing Next.js Apps: Unit, Integration, and E2E
A complete guide to testing Next.js applications — from unit tests with Jest and React Testing Library to E2E tests with Playwright.
Next.js
8 min read·Jun 10, 2025
Internationalization in Next.js with next-intl
Add i18n routing, locale detection, and translated content to a Next.js App Router project using the next-intl library.
Next.js
11 min read·May 22, 2025
Authentication in Next.js: A Practical Setup with Auth.js
Set up authentication in a Next.js App Router project using Auth.js (NextAuth v5) — sessions, OAuth, credentials, and route protection.
Next.js
10 min read·May 5, 2025
Data Fetching in Next.js: Patterns for Every Use Case
A clear breakdown of every data-fetching pattern in the App Router — static, dynamic, streaming, parallel, and sequential — with code you can use.
Next.js
9 min read·Apr 14, 2025
Server Actions in Next.js: Mutations Without an API Layer
Understand how Next.js Server Actions work, when to use them over API routes, and patterns for forms, validation, and optimistic updates.
Next.js
9 min read·Apr 2, 2025
Next.js Performance Tips: What Actually Moves the Needle
Practical techniques to speed up Next.js apps — from bundle analysis to streaming, caching, and Core Web Vitals tuning.
Next.js
7 min read·Mar 18, 2025
Next.js Image Optimization: Getting the Most Out of next/image
A practical guide to the next/image component — lazy loading, formats, sizing, and common pitfalls that trip up most teams.
AI
6 min read·Mar 12, 2025
Using AI code review without losing your judgment
A practical workflow for using AI tools to spot issues while keeping engineering decisions in human hands.
Next.js
8 min read·Mar 10, 2025
Next.js Middleware: Edge Logic Without a Separate Server
Learn how Next.js Middleware runs at the edge, how to intercept requests, rewrite routes, and handle auth — all before a page ever renders.
JavaScript
5 min read·Mar 1, 2025
Async/await without the mystery
Understand promises and asynchronous JavaScript with a mental model you can apply immediately.
Next.js
6 min read·Feb 18, 2025
SEO that fits naturally into a Next.js app
A field guide to metadata, structured data, and static pages in the App Router.
React
7 min read·Jan 15, 2025
A practical guide to React Hooks
Learn how to choose, compose, and reason about React Hooks without turning components into a maze.