Front-end World

Front-end World

Home
Podcast
👨‍💻 About Me
👥 30K+ followers
📗 My books
✍️ Blog posts
📝 All Resources
💬 Chat with me
🚀 LinkedIn
🚀 Discord

Is Writing Blog Posts Still Worth It in the Age of AI?

READ THE LATEST
Join 10,000+ devs reading Front-end World—subscribe for free and stay ahead in React.js, Next.js, Angular, Security and DevOps.

Recent posts

View all
My Tech Focus for 2026 (and What I Recommend You Focus On Too)
Every year, I deliberately narrow my focus in Tech.
 • Kristiyan Velkov
What I achieved in last year (2025)
A Year of Responsibility, Growth, and Building Things That Matter
 • Kristiyan Velkov
React Security: What Happened, What Was Affected, and What Comes Next
In December 2025, React and Vercel disclosed two serious security vulnerabilities related to React Server Components, plus a third issue caused by an…
 • Kristiyan Velkov
Advice to Junior Front-End Developers: Master the Basics, Use AI, but Never Blindly Trust It
My top 3 advices to junior Front-end developer
 • Kristiyan Velkov
My Experience at React.js Advanced London: A Workshop, New Connections, and an Unforgettable Community
How a 4-hour Docker workshop turned into one of my most inspiring conference moments of the year
 • Kristiyan Velkov
My Node.js Guide Is Now Officially Part of Docker Documentation
I’m proud to announce that my Node.js guide has been officially published as part of the Docker Documentation.
 • Kristiyan Velkov
Everything new in Next.js 16
Next.js 16 is now available, bringing Cache Components, Turbopack, and refined caching, now fully supported on Appwrite Sites.
 • Kristiyan Velkov
Mastering React.js Security — The Real-World Knowledge Every Mid & Senior Developer Must Have
BOOK: Mastering React.js Interviews - for Middle/Senior developers.
 • Kristiyan Velkov
[COPY] Why Can’t You Use --chown with Copy --link in Docker?
Understanding the Incompatibility Between --chown and --link in Docker COPY Operations
 • Kristiyan Velkov
The New Face of Phishing: Why Security Isn’t Just for “Security People”
Phishing has evolved.
 • Kristiyan Velkov
BOOK: Mastering React.js Interviews — For Middle & Senior Developers
This book is your ultimate roadmap to modern React.js interviews and standing out from the crowd.
 • Kristiyan Velkov
Front-End Developers Are Likely to Be Among the Most Affected by AI
AI era is here to stay!
 • Kristiyan Velkov
Front-end World
Front-end World
JavaScript | TypeScript | React.js | Next.js | Vue.js || Angular | Analog | HTML | CSS | SASS | Tailwind CSS | Shadcn UI | TanStack | Turbopack | Vite | HTMX | RxJS | GraphQL | REST APIs | Node.js | Express.js | NestJS | Docker | Security
Newsletters
Logo for Books
Books
My tech books
Top posts
Join 10,000+ devs reading Front-end World—subscribe for free and stay ahead in React.js, Next.js, Angular, Security and DevOps.

react.js

View all
React Security: What Happened, What Was Affected, and What Comes Next
In December 2025, React and Vercel disclosed two serious security vulnerabilities related to React Server Components, plus a third issue caused by an…
 • Kristiyan Velkov
My Experience at React.js Advanced London: A Workshop, New Connections, and an Unforgettable Community
How a 4-hour Docker workshop turned into one of my most inspiring conference moments of the year
 • Kristiyan Velkov
The New Face of Phishing: Why Security Isn’t Just for “Security People”
Phishing has evolved.
 • Kristiyan Velkov
BOOK: Mastering React.js Interviews — For Middle & Senior Developers
This book is your ultimate roadmap to modern React.js interviews and standing out from the crowd.
 • Kristiyan Velkov
Upcoming Conferences Where I'll Be Speaking in 2025
Where you can find me in 2025 year
 • Kristiyan Velkov
5:09
My React.js Guide Is Now Officially Part of Docker Documentation
Unlock Seamless Front-end Development with My Docker-Approved React.js Setup Guide
 • Kristiyan Velkov
9:24
Mastering React.js Interviews - from 0 to Hero - 15 min of full audiobook.
Based on 350+ real-world front-end interviews, it delivers the most relevant technical questions for React.js 19 asked by top companies
 • Kristiyan Velkov
React.js— Naming Convention (Best Practices)
Establishing Clear, Scalable, and Maintainable Naming Standards in React Projects
 • Kristiyan Velkov
How to Understand a Large Project Codebase Like a Pro
Proven Strategies to Navigate, Analyze, and Master Any Complex Codebase with Confidence and Clarity
 • Kristiyan Velkov
Understand Web Security: SOP (Same-Origin Policy) and CORS (Cross-Origin Resource Sharing)
SOP (Same-Origin Policy) and CORS (Cross-Origin Resource Sharing) in depth!
 • Kristiyan Velkov
The Golden Rules for Web Accessibility
Web accessibility best rules.
 • Kristiyan Velkov
My Book Made It to the Top 5 React.js Books on Leanpub — And It’s Now Featured!
Complete roadmap to crushing React.js 19 interviews and rising above the competition.Based on 350+ real-world front-end interviews, it delivers the most…
 • Kristiyan Velkov

next.js

View all
React Security: What Happened, What Was Affected, and What Comes Next
In December 2025, React and Vercel disclosed two serious security vulnerabilities related to React Server Components, plus a third issue caused by an…
 • Kristiyan Velkov
My Experience at React.js Advanced London: A Workshop, New Connections, and an Unforgettable Community
How a 4-hour Docker workshop turned into one of my most inspiring conference moments of the year
 • Kristiyan Velkov
Everything new in Next.js 16
Next.js 16 is now available, bringing Cache Components, Turbopack, and refined caching, now fully supported on Appwrite Sites.
 • Kristiyan Velkov
Next.js 15 : Streaming and Suspense for Ultra-Fast Web Apps
Performance has always been the backbone of great web applications.
 • Kristiyan Velkov
Dockerizing a Next.js Application in 2025
Production-Ready Next.js Docker file
 • Kristiyan Velkov
Next.js Hydration Errors Caused by Google Chrome Extensions
Next.js is hydration errors, particularly when these errors are triggered by Google Chrome extensions.
 • Kristiyan Velkov
Docker Scout in Action
Understand Docker scout in Action with Next.js Code Examples
 • Kristiyan Velkov
What sets senior developers apart from juniors ?
Understand the difference between senior and junior developers.
 • Kristiyan Velkov
Next.js 15: They finally improved the hydration error message.
Next.js team improved the hydration error in Next.js 15 version
 • Kristiyan Velkov
Join 10,000+ devs reading Front-end World—subscribe for free and stay ahead in React.js, Next.js, Angular, Security and DevOps.
© 2026 © 2025 Kristiyan Velkov. All rights reserved. · Privacy ∙ Terms ∙ Collection notice
Start your SubstackGet the app
Substack is the home for great culture