Master React: From Basic Concepts to LinCanva Projects
Are you new to React? Learn the basics of React in one course and gain practical experience through a LinCanvas project. Then you can confidently apply for a job as a front-end developer!
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Level Basic
Course period Unlimited
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Hello, I'm GymCoding!
As the project grows, CLAUDE.md grows with it, causing Claude to follow the wrong rules... I'm feeling the limits of trying to manage everything with a single CLAUDE.md in a monorepo...
I've noticed many people have been sharing these concerns lately. So, I've put together a proper explanation in this additional lecture!
This lecture is not just a tip for splitting CLAUDE.md into multiple files. It is a proven strategy that allows Claude to automatically read manuals only when working on a specific folder by dividing them accordingly.
What is covered in this lecture
The core principle of sub-CLAUDE.md — a structure that automatically loads only when working in that specific folder
Umbraco CMS Real-world Case Study — How to manage large-scale projects with 23 CLAUDE.md files
Braintree/PayPal Real-world Case Study — 26 CLAUDE.md Operation Patterns by Payment Feature
.claude/rules/ vs sub-directory CLAUDE.md — Comparison table on when to use which
File Size Guidelines — The 30-line root CLAUDE.md case study from CopilotKit (29K ⭐)
The core of this lecture is not about reducing rules, but how to make only the rules of the folder you are currently working in visible to Claude!
😊 To those currently taking the course
Existing students can take this additional lecture immediately at no extra cost!
If the lecture was helpful, a single line of review would be a huge help. If you haven't left a review yet, I would appreciate it if you could leave even a short one! 🙏
🎯 For those who haven't taken the course yet
We are now in an era where the difference in skill is determined not by whether you use AI coding tools, but by how well you use them.
Within just 4 months of its release, more than 4,500 people are taking the course, including not only developers but also a wide range of individuals such as marketers, data analysts, students, and non-developers.
Recent Reviews
This is just insaneThere are so many things I didn't know. Honestly, there's a lot to study, but the instructor explains it so easily and it's very useful. Highly recommended, for real.
To celebrate surpassing 4,000 students within just 4 months of launch, all Gym Coding courses are currently 25% off. This is the maximum discount rate a knowledge sharer can set. It runs only until 4/6 (Mon), so don't miss out!
👉Enroll now at a discounted price
Thank you! 🙇♂~~!!
Hello, this is Gym Coding!
The Claude Code Master course has surpassed 4,000 students within just 4 months of its release.
A truly diverse range of people, including not only developers but also marketers, planners, and non-majors, have joined us.
I feel with every course review that these numbers didn't just accumulate on their own. I am truly grateful 🙏
I prepared this because I wanted to convey my gratitude in the most direct way possible.
📌 Gym Coding All Courses 25% Discount Event
📌Running for exactly 2 weeks, from 3/23 (Mon) to 4/6 (Mon) at midnight
👉Enroll now at a discounted price
✅ If you haven't taken the Claude Code course yet
There's a reason why 4,000 people chose it.
Lifetime Free Updates — AI changes every week, and the lectures keep up with it.
Complete 4 Real-world Projects — By the end of the course, you'll have 4 services built with your own hands
Learning Based on Official Documentation — Based on Anthropic's official documentation, ensuring information reliability
Recent Course Reviews
In the first session, I couldn't understand what was being said at all, nor could I grasp the purpose or meaning behind why things had to be done that way.
From the second session, I gradually became more familiar with it, became able to carry out projects on my own, and could proceed by finding the necessary parts as needed.
By the 3rd round, I was watching with a full understanding, so unlike the difficult 1st round, I was able to enjoy the lectures.
It's okay even if you've never used Claude Code before. We will go through it step-by-step from the very beginning.
✅ For those already taking the Claude Code course
I recommend taking this opportunity to watch the React / Vue / Next.js lectures together.
The more you understand frameworks, the more you can utilize AI coding tools to their full potential.
The synergy is different when viewed together.
I am always grateful 🙇♂
Best regards, Gym Coding
Hello, this is Gym Coding.
The lecture uses Cursor, but do I have to use it?
Can I use VSCode?
I'm using Anti-Gravity; is that okay?I have received this question many times in the Q&A and the community. That's why I've updated the lecture to clear everything up!
To start with the conclusion, everything works. Since Claude Code is a tool that runs in the terminal, it doesn't matter which editor you use as long as you have a terminal.
However, you need to understand "why everything works" and "why Cursor was used in the lectures" so you can start without any lingering doubts. In this lesson, I will clearly explain those parts, starting from the core principles.
Updated Lecture (Section 5)
Lecture 25. Installing Cursor AI: The Relationship Between VSCode, Cursor, and Antigravity
Lecture 26. Code Editor Explanation: cursor command, extension installation
Go see it now → Cursor AI Installation: Relationship between VSCode, Cursor, and Antigravity
To those currently taking the course
If the lecture was helpful, a single line of review would be a great help. Each of your reviews is the driving force behind creating better lectures. If you haven't left a review yet, I would be truly grateful if you could leave even a short one! 🙏
For those who haven't taken the course yet
Now, it is no longer a question of whether you use AI coding tools or not, but an era where how well you use them determines the difference in skill. Within just three months of its release, 4,000 people have enrolled, and a wide range of individuals, including not only developers but also marketers, data analysts, students, and non-developers, are joining us.
Recent Reviews
During the first round, I couldn't understand what was being said at all, nor could I grasp the purpose or meaning behind why things had to be done that way. From the second round, I gradually became more familiar and was able to proceed with projects on my own, and I could move forward while looking up the parts I needed. By the third round, since I watched it with a sufficient level of understanding, I was able to enjoy the lectures, unlike the difficult first round. It's a great help that you update new lectures quickly according to trends and answer questions well. Thank you for the great lectures.
👉Enroll now at a discounted price
Thank you! 🙇♂
Hello, I'm Gym Coding!
The Claude Code PPT Creation Lecture that many of you have been curious about has finally been added! 🎉
A new lesson has been uploaded to Section 30. Creating Your Own Workflow, and in this lecture, it doesn't just stop at simply creating a PPT.
What is covered in this lecture
Directly creating a web PPT skill that fits the official document structure using skill-creator
Research collection method using sub-agents in parallel
A practical course for reviewing and editing AI-generated results
The entire pipeline of packaging completed skills into plugins and registering them on the marketplace
You can learn everything at once—from creating skills and bundling them into plugins to uploading them to the marketplace and sharing them with other projects or team members.
😊 To those currently taking the course
Whenever a new lecture is added, you can take it immediately at no additional cost. Check it out right now!
And if the course was helpful, a one-line review would be a huge help. If you haven't left a review yet, I would appreciate it if you could leave even a short one! 🙏
🎯 For those who haven't taken the course yet
The skill systems, sub-agents, and plugin marketplaces covered in this lecture are the core features of Claude Code. This course allows you to systematically learn these functions from the basics to practical application, so if you've been interested, please take this opportunity to check it out!
Thank you! 👏
Hello, I'm GymCoding.
What is the difference between skills and plugins? How did you make the PPT?
Since these questions have been coming up often lately, I'm preparing a proper video about it!
So, I am preparing a proper additional video!
I won't just be showing you how to make a PPT; I will cover everything from creating your own skills, packaging them as plugins for reuse across multiple projects, and registering them on the marketplace to share with your team. I'm going to properly show you how to utilize Claude Code in practical work beyond just development.
What we cover in this video
The entire process of creating a Web PPT skill directly from scratch
Create a skill that fits the official documentation structure with skill-creator
Research collection utilizing sub-agents in parallel
How to share completed skills through the Plugin + Marketplace
I plan to upload this as an additional lecture within this week. Also, I will be providing the skill files created in the video to all students.
😊 To those currently taking the course
If the lecture was helpful, a one-line review would be a great help. Each of your reviews is the driving force behind creating better lectures. If you haven't left a review yet, I would be very grateful if you could leave even a short one! 🙏
🎯 To those who haven't taken the course yet
Development using AI has now become a necessity, not an option.
Recent Reviews
Even as a non-developer in the AI era, I took this course while looking for a way to create my own service. As a result, I am extremely satisfied, to the point where I have absolutely no regrets about choosing this course. The content was substantial, but above all, the instructor's delivery was so excellent that I could understand and follow along despite the difficult subject matter. Although I still have a long way to go, I plan to study steadily through review. Thank you for providing such a great lecture!
This is a course where you can systematically learn the skills, sub-agents, and plugin systems covered in this video, from the basics to practical application. If you are interested, please check it out!
👉Enroll now at a discounted price
Thank you! 👏
Hello, I'm Gym Coding!
Claude Code Mastery course has surpassed 3,234 students within just three months of its release! 🎉🎉
It's been described as exceptional even on Inflearn for so many students to gather in such a short period, showing just how much interest there has been. I would like to express my sincere gratitude to everyone who has taken the course.
To show our gratitude, we are planning to add a new Advanced Agent Teams section.
Details of this update
We cover four core strategies for using agent teams in practice at half the cost and double the quality.
Differences in Context Inheritance — Accurately understanding the core differences in skill inheritance between team members vs. sub-agents
Plan Approval — Block token waste at the source with a pre-implementation plan approval workflow
Model Mixing & Cost Optimization — Significantly reduce costs by configuring Leads with Opus and Team Members with Sonnet + 4 cost-reduction strategies
Hooks Automated Quality Gate — Automation that blocks completion via TaskCompleted hooks until tests are passed
The slides, configuration files, and prompt templates used in the lecture are also provided to the students.
⏰ Large-scale update commemorative discount, ending tomorrow (3/5)!
Currently, a final special discount is underway to celebrate the major update.
The discount ends tomorrow (3/5).
We have received so many inquiries via email after the discount period ended. "Will there be another discount?" "I missed it, is there any way..." Since these inquiries keep coming in, I am letting you know in advance so that no one misses out.
This is your last chance to enroll at this price, so if you've been interested, please make sure to check it out!
💬 To current students
Those who are already enrolled can watch the new lectures immediately without any additional payment!
If the lecture was helpful, a single line of review would be a great help. Each of your reviews is the driving force behind creating better lectures. If you haven't left a review yet, I would truly appreciate it if you could leave even a short one! 🙏
Thank you so much!! for choosing my lecture!!!
🙇♂
Hello, this is Gym Coding.
Introducing the Claude Code Master v2.0 2nd update.
The core of this update is Agent Teams. While Claude Code was previously a solo assistant, now multiple AIs form a team to work simultaneously. They communicate with each other, divide tasks, and automatically take on the next steps.
🔥 Key Updates
First Impressions of Agent Teams — How it Works - Showing the actual operation screen first
Sub-agents vs. Agent Teams: Differences and 5 Key Takeaways - Differences from sub-agents, key terminology, display modes, team structure and communication methods, and a follow-along practice session
Practical Application of Agent Teams — Future updates based on your needs👍
🧑🎓 For those already enrolled
The Agent Teams lecture has been added. You can take the course right away.
And I have one favor to ask. If my lecture was even slightly helpful, please leave just a one-line review. Your single line gives me the strength to create the next update.
🙋♂ For those who haven't started yet
Claude Code is evolving rapidly. With the addition of Agent Teams, we have entered an era where AI, which used to work alone, now operates as a team.
This course is where you can learn about these changes the fastest and most systematically.
"Video updates, not just text, after the course launch? And even additional videos? I signed up just by looking at the curriculum without even checking the reviews. And it was a great course with no section to waste, and I think I made a great decision to take it."
— Actual Student Reviews
🔥 Celebrating Agent Teams Update — Special 30% Discount
To celebrate the Agent Teams update, we are offering a limited 30% discount for 7 days. The discount ends on March 5th at midnight (D-7).
Hello, this is Gym Coding.
We are pleased to announce the Claude Code Master v2.0 update.
🔥 Key Changes (8 sections, 19 lectures)
Installation guide for macOS/Windows completely re-recorded + added video for resolving Windows environment variable issues
Token-saving default model settings, the relationship between the status bar and token usage — 2 new videos
Slash Commands, Status Bar, Output Styles — All 4 lectures re-recorded
CLAUDE.md Memory Management re-filming + Modular Rules, Auto Memory new videos
Added advanced features including Enhanced Plan Mode, Extended Thinking, and Custom Command Skill integration
👉 Course duration changed from 16 hours 10 minutes → 17 hours 43 minutes
👉 Check updates: https://www.gymcoding.co/courses/claude-code-master/changelog
🧑🎓 For those already enrolled
Thank you so much for choosing my lecture. The interest, reviews, and questions from my students have been the driving force that allows me to continuously update the course. Thank you!
And if my lecture was even a little bit helpful, I would be truly grateful if you could leave a review.
Your single line of feedback gives me the strength to create the next update.
👉Go to leave a review: https://inf.run/r4Wib
🙋♂ For those who haven't started yet
There is a question that those considering an AI course ask most frequently.
AI is no longer an option, but a necessity.
If you are interested in Claude Code, I highly recommend my lecture.
Recent Course Reviews
After feeling a sense of crisis and deciding to study AI in earnest,
I happened to start with Gym Coding's YouTube and eventually took this course.
To be honest, I hesitated quite a bit before taking the course.
There are so many AI-related courses, but since technology and trends in this field change so rapidly,
I wondered if I would be learning outdated content the moment I started the course.
Would it just end with learning simple prompt usage and the existence of various tools?
If so, is it worth paying for a course? These were my thoughts.
However, looking at the curriculum table of contents before deciding, I liked it quite a bit.
Not only that, I could see that the course was being continuously updated based on the latest standards.
Updating videos, not just text, after the course launch?
And even adding extra videos?
I signed up just by looking at the curriculum without even checking the reviews.
And now, as the main lectures are almost finished and only the additional lectures remain, I am leaving this review.
I believe it was a great course with no section to waste, and I'm glad I decided to take it.
The progression filled with Gym Coding's know-how based on real-world projects was excellent.
Thanks to this, I gained a lot beyond just simple studying.
Thank you to Gym Coding and Inflearn.🔥 A special discount is currently available to celebrate the v2.0 update 🔥
→ Discount Application Link: https://gymcoding.co/vip
Thank you.
Best regards, GymCoding
