Building a Full-Stack Notion Service with Next.js

We're building an AI-powered video conferencing application with real-time AI agents, meeting summary features, and post-call functionality.

Firebase's SQL version! You can master the basics of Next.js full-stack development through Supabase!

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

This course is a practical, hands-on course where you will build your own 'League of Legends Match History Search Site' using React.js and Node.js, utilizing the Riot Games API. Students will naturally learn through hands-on practice, following the project step-by-step, covering everything from basic API usage, integration of frontend (React.js) and backend (Node.js, Express.js), to match history data visualization, and implementing op.gg-style UI. Rather than focusing on complex theories, this course is code-centric, allowing you to quickly experience results by 'building it yourself' through hands-on practice.

Clone YoutubeMusic website with React, Next.JS 14, TailwindCss, RadixUI, Shadcn, and zustand. You can master the basics of web front-end with a focus on UI, starting from NextJS basics.!

💸 A profitable AI agent web service course where real payments happen! ❗ Stop making websites just for your portfolio and build an <AI Commentary Product Mall> with 'infinite inventory and zero cost'! 🤖 Build a solid foundation starting from the 'service specification' with your AI development team members, just like working with a human development team!

Traditional React development and Next.js development are completely different approaches. This course penetrates the core of the latest Next.js 16 and teaches you the 'real' Next.js way of development. Experience how to achieve both performance and efficiency, from job portfolio projects to real-world projects. Let's develop the Next.js way! The course is structured to help you learn by doing, creating actual examples to understand how to apply Next.js features. You'll learn faster through actual code rather than theory, focusing on Server Components and covering Server Actions and caching strategies. Since the goal of the course is to catch up with the Next.js vibe as quickly as possible, the lectures are conducted using JavaScript. However, each lecture's examples are additionally provided as course materials created in TypeScript. December 18, 2025 - Updated to Next.js 16

We will create an SNS service similar to Twitter (X.com) using the React19 & Next15 & ReactQuery5 & Next Auth5 & MSW2 & socket.io4 & zustand stack. Finally, we will add SSR for search engine optimization!

We will create an ad-monetized website using React. You will learn how to optimize advertisements, reduce server costs, and gain site operation tips according to the scale of your project.

Master Claude Code from the basics to a professional level. You will learn core features (CLAUDE.md, sub-agents, MCP, Hooks, etc.) to develop and deploy actual services, concluding with foundational appendices for non-majors and advanced application lectures.

With the arrival of the AI era, the skills required of developers are becoming increasingly complex. You might have thought, "I just need to be good at frontend," but when you try to create your own service or integrate AI features, you eventually hit a massive wall called the backend. However, as you try to start backend development, are you overwhelmed by how much there is to learn—from database design and authentication (Auth) to storage management and complex infrastructure setup? Now, you can lay down that heavy burden. In this course, we use Supabase, which solves all these backend functions at once. We will guide you through the fastest shortcut to becoming a full-stack developer who can "instantly" complete a backend without complex server knowledge and bring ideas to life immediately.

You will learn the process of developing and launching your own restaurant record app using React Native. I have prepared the entire process, from design to front-end and back-end development, and deployment.

This course goes beyond just using Express.js—you'll implement its internal engine from scratch to truly understand how real servers work. You'll gain hands-on experience growing as a server developer by building all of Express's components from the ground up, including routers, middleware, request-response objects, static file handling, and template rendering.

This course goes beyond simply using Express.js. You will rebuild its internal engine from start to finish, gaining hands-on experience with the real principles of how a server works. By directly creating each component of Express—such as routing, middleware, request–response objects, static file handling, and template rendering—you will grow as a server developer and truly understand how a framework operates at its core.

Developing an AI Safety Report Service with React + Spring AI The 5th Neo + Essential project lecture is about building a Safety Report system, an idea for improving government systems!

A current startup CTO will share vibe coding knowledge gained through actual services and various outsourcing projects.

A course on Next.js fundamentals. Develop a map service end-to-end with Next.js.

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.

"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.

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