I've been working as a developer for a while, but I haven't properly read official documentation before. It was really great because it felt like you were breaking down and explaining the NextJS documentation, and I was able to learn how to approach reading official documentation in the future. The course content itself wasn't about learning extremely in-depth, but rather it was great content that helps you become a developer who can understand NextJS's operating principles and use it effectively. However, it seems like this paid course includes some lectures that were uploaded to YouTube, so it would be great if you could include reference playlists or links in the announcements or course introduction! There are some topics mentioned throughout that were explained in the YouTube content!

This is such a great lecture. When the lecture first came out, I emailed about the resolution issue and received a response that you had requested improvements from Inflearn, but it's a bit disappointing that the maximum resolution still remains at 720p (though it doesn't interfere with viewing).

Hello, I enjoyed the lecture very much. Even though I took the course after reading the Next.js official documentation first, the early part of the lecture where each topic was clearly addressed with the flow of problem → background → solution helped me organize my understanding well. I was particularly impressed by the explanation approach that unfolded from the perspective that development is ultimately about problem-solving, and the parts where you explained based on actual code along with background knowledge were very helpful. I think this lecture can serve as a good guide for those who are just about to introduce Next.js or those who are considering introducing SSR after feeling the limitations of CSR. However, there were a few disappointing aspects. In the early routing implementation part, when you started explaining with code written by generative AI, it was confusing from my perspective of expecting actual internal implementation code, and I had doubts about the direction of the lecture. (Of course, my misunderstanding was cleared up when you later explained based on actual code.) Also, curriculum title compositions like path automation or template.tsx animation that you implemented directly might feel like official Next.js features, which could cause some confusion, so it would be better if you separated them into separate sessions or clarified the explanations. And personally, I was disappointed by the lack of explanation about cache strategies that have become important with App Router. There were also some parts in the lecture flow where mentioning later content early on made it feel like prerequisite knowledge was needed. Nevertheless, overall it was a well-organized lecture that is helpful for practical work. Thank you.

When I transitioned from React to Next.js, I had some vague ideas about what parts needed to be handled on the server and how they operated, but this lecture gave me hints about that. My skills are still lacking, so I couldn't fully understand the entire lecture, but it was a great help in terms of being able to grasp the development direction using Next.js and the direction for my studies. I believe that if I build up my skills further and revisit this lecture, I'll be able to gain much more than I did now. So long!

I've been working on several projects using Next.js so far, but I always wondered if my understanding of the framework I was using was insufficient. However, after taking this course, I feel like I've gained a clear understanding of why one should use Next.js, a React-based framework. In particular, there were many parts of the concepts of server routing and server components that I couldn't understand even by looking at the official documentation, but I was able to learn those parts through actual example code and understand them easily through the instructor's highly intuitive explanations. I used to feel like I was only superficially implementing features while working on projects. However, now, when implementing any feature, I can also consider, 'Why is this approach a better choice?' and 'What are the pros and cons of this structure?'. Thanks to this, my fear of Next.js has also disappeared, and furthermore, I've gained confidence that I can easily absorb new features no matter what version appears. This course is highly recommended for those who want to understand the fundamental principles and design intentions, not just superficial usage. I am confident that this course I took can be a turning point for developers who want to properly understand Next.js.

This is an excellent course. I've never seen a course this in-depth on Inflearn before. I could understand why Next.js was designed this way. Just trying things out without meaningful study doesn't stick in your memory even after a short time. Learning *why* it was designed this way helps it stick in your memory for a long time. It also naturally helps with interview prep. As someone who wasted a lot of money on follow-along project courses, I highly recommend this in-depth course.

Next.js has been updating its versions at a rapid pace. While taking this course, I was able to deeply understand that Next.js version updates are not just about adding features, but about overcoming certain limitations and evolving to provide a better development experience. I first encountered you on YouTube, and I appreciate you uploading great lectures every time.

I had some questions that I couldn't resolve while using Next.js in practice. They were mainly about the reasons for data fetching on the server and server actions, but I was able to understand them clearly through the lecture. I didn't even realize how time was passing because of the quality of the lecture and Boaz's passion. Furthermore, I was happy to gain a deep understanding of the server component rendering method. This lecture has dispelled my fear of Next.js. Thank you so much. I highly recommend it!

This course helped me upgrade from simply using Next.js to truly understanding its principles. Technology is constantly and rapidly changing, but understanding the fundamental principles makes it easy to adapt to changes. I recommend this to anyone who is using Next.js but has questions like, "Why is this structure necessary?" Thank you for the great course! 🥰

This is not your average introductory course that just teaches you how to write code. It delves deeply into the philosophical background and technical implementation methods of Next.js routing, data fetching, and rendering. In particular, topics such as 'How is Next.js routing implemented?' and 'Why did the params of Dynamic Route change to a promise?' help you understand 'why' it was designed that way, not just how to use it. This is the only lecture that has clearly helped me understand the essence and optimization points of Server Components, as I was only using CSR with 'use client' in practice. I feel like I can finally use Next.js properly. I'm really looking forward to the next lecture!