Getting Familiar with Next.js - Migrating

Learn the latest Next.js with the official documentation. Understand why Next.js is needed as a problem-solving tool!

Get familiar with Next.js by creating a personal blog with Next.js!

Upgrade your React app with Zustand, TanStack Query, and Tailwind CSS! We’ll guide you through the core concepts and usage of various tools so you can take on even complex projects.

A full course on Next.js you can sink your teeth into! Complete a real-world project using the latest technologies such as GraphQL, Redis, RabbitMQ, Prisma, TailwindCSS, Docker Compose, Cypress, Prometheus, and Grafana, and experience both the App Router and Page Router.

Have you ever thought about building a 'real system' beyond simply rendering screens? The real problem many developers commonly face is something else entirely. It's the limitation of a 'fake full-stack'—where things look plausible on the surface, but data synchronization frequently tangles, speed is frustrating, and you lose track of where to even start when just a few features are added. This isn't a problem that can be solved by simply memorizing one more Next.js feature. This course will resolve that frustration from the roots. Encyclopedia-style classes that just list features are boring, aren't they? Instead, we have tightly integrated the fundamental principles of Computer Science (CS) with the advanced architecture of Next.js. We will directly transplant into your fingertips the enterprise-level design skills required to flexibly withstand millions of visitors and maintain perfect data consistency.

We will create a Twitter-like SNS service using the React & Next & Redux & Redux-Saga & Express stack. Finally, we will perform search engine optimization and deploy it to AWS.

In this course, you will learn how to create a chat application using React and Firebase.

In this course, you will be able to create a Reddit website from scratch, step by step.

"Why did the AI write this code?" or "Why can't it remember what I just said?" The frustration you encounter when using AI tools like Claude Code stems from not knowing how the tool actually works. This course flings open that black box. Over 25 lessons, we will build our own Coding Agent from scratch that functions exactly like real-world professional tools—giving the LLM 'eyes' to see files (Read), 'hands' to fix code (Edit), and 'feet' to execute commands (Bash). This isn't just about learning how to use a library. You will gain hands-on experience by implementing code to understand how AI perceives project structures, why it loses its memory during long conversations, and how to solve those issues technically (Sliding Window, Summary). Through this process, you will evolve from being a mere 'user' of AI tools to an 'AI provider' who understands the underlying principles and can customize and evaluate tools to fit your specific needs.

The goal is to acquire basic knowledge of React Native for mobile app front-end development. This course is designed to enable non-experts to easily develop native mobile apps by utilizing languages/APIs with low entry barriers.

Even in the AI era, developers need the ability to understand code and complete real-world services. Build practical web development skills by using React and Firebase to implement everything from login, data management, and image uploads to deployment, based on a foundation in HTML/CSS/JavaScript.

This is a practical course where you will directly create a timer app using React, Electron, and Zustand, and even deploy it to cross-platforms (Windows, macOS, Linux). Starting with familiar React web development, you can learn the entire flow of desktop app development, including global state management via Zustand and final GUI deployment!

Throw away those simple services you can make with vibe coding in just 10 minutes! You can learn 'real' practical vibe coding. Let's create advanced services at the level of actual services according to planning and design with Cursor AI NCOP. No Code, Only Prompt

Building your own emotional diary service with Spring AI + React It's time for our 4th project with Neo + Essential!

This course will help you develop mobile apps that can be serviced on Android and iOS using web development.

No coding skills? No problem! Turn your ideas into real profit in just 4 weeks. Use AI and the latest tools to build a website and an app simultaneously and launch your service right away.

A full course of hands-on Next.js! Complete a real-world project with the latest technologies such as GraphQL, Redis, RabbitMQ, Prisma, TailwindCSS, Docker Compose, Cypress, Prometheus, and Grafana, and experience both the App Router and Page Router.

In the AI era, web developers need more than coding skills—they need the ability to use AI to turn ideas into real-world results. Build your AI web development skills for practical work and portfolios by gaining hands-on experience creating UIs with Stitch and Figma Make, implementing them in React, and deploying them.

Complete everything from design to TDD and CI with Claude Code. Taking a single feature from one line of spec all the way to main merge.

We have entered an era where it has become incredibly easy for web developers (especially React developers) to launch apps. With Expo, you can release both Android and iOS apps even faster. Let's become developers who can quickly launch apps through Expo.