[6-Week Course] 『Self-Study Vibe Coding with Claude Code』 Complete Reading Challenge

Hello everyone!
I'm the Hon-Gong Leader.

I thought to myself, "I should at least leave a comment on the final farewell (retrospective)," but I've ended up being very late again.
I wasn't able to give individual greetings to those who submitted only via the Google Form without submitting to Inflearn.
However, I am always sending my support to you via telepathy, Bluetooth, and all sorts of latest technologies. I hope you felt it.

This challenge started with 300 people and finished with 49.
I think "Vibe Coding" has a bit of that quality. Until you truly get started, you vaguely think it's easy and end up postponing the start itself with a mindset of "Well, I can do it whenever I want..." that kind of... (at least, that's my opinion.) It was a bit disappointing that it didn't feel as crowded as other times, but it was so great to be with such talented and amazing Hon-Gong members.

No matter how much AI tools like ChatGPT, Gemini, and Claude fly and crawl, I believe the most important thing is still our heart and will. In this era of Great AI, I'm sending hearts to the 49 Hon-Gong members who completed the journey with their will without a single late submission ♡♡♡

For those who participated in the retrospective event, I have just sent out Mom's Touch Thigh Burger coupons with a mother's warm touch. Please check your KakaoTalk chat list, and if you can't find it, try searching for "BizCon."

Oh right, I've also credited your mileage. Please log in and check if it has been properly added. Since you can now purchase e-books and lectures in addition to physical books, please consider this as the Chieftain's support fund for your next step. If you rent e-books, you might even be able to read more than one volume.


Anyway, now that all activities have truly come to an end, I'll recommend one song with lyrics and head out.
I've been playing this one song on repeat all week because I love the lyrics. Please give it a listen when you have time.
I usually really don't like "comforting" style songs, but I got hooked on the line about forgetting even the fact that you've lost your dreams...

Xdinary Heroes "Dreaming Girl"

(02:40~)
Most people lose their dreams
They even try to forget
The fact that they lost them

I hope you cherish it dearly
Until that dream becomes a reality

I believe you will overcome everything
To the girl who dreams,
Who is too beautiful to wither away

You can listen to it by putting your own name in place of 'girl'.
Well then, goodbye for real! Let's meet again in a good place!!
Sincerely, the Chief

Hello everyone,
this is Chief Hongong.

The Vibe Coding Study, which felt like it would never end, has concluded, and the long Lunar New Year holiday, which felt like it would never come, has also passed.
Did you wrap up Week 6 well and enjoy your holiday?
I spent the entire holiday binge-watching Wangsanam, Bridgerton 4, and Fate War 49, so my dark circles have reached my elbows. It felt great to turn off my brain and soak in dopamine for a change. I feel a bit like a fool now, but...
I hope everyone had a relaxing time with their brains switched off for a while.

Anyway, as soon as I finish checking Week 6, I will provide snacks to celebrate 100% completion and credit your mileage.
For those who haven't submitted their Hanbit+ ID yet, please make sure to submit it via the link below!!
Right now, the number of people who submitted Week 6 and those who submitted their IDs don't match up well. This is the most important part.
https://forms.gle/w6JMsNqX5eg2t1827

+) If you were unable to submit because the deadline was locked by Inflearn's system, please send your blog link to event@hanbit.co.kr.

Now, let's accept reality and head off to tackle the work, studies, and various tasks that piled up during the holiday.
I wasn't going to share a playlist since there are no missions left, but I'm sharing this one because I like the title.
The world is not easy, but neither am I | playlist

If you feel like screaming, listen to WOODZ's Bloodline with me...

I'll be back to greet you again after a quick wrap-up.
That's all for now!
Best regards, Chief Hongong

Hello, this is the Hon-Gong Leader.
Greeting you in the morning and again in the afternoon—I must be a crazy leader.
I've been feeling in great condition for the first time in a while, so I just wanted to show up twice.

There are quite a few subtly funny blogs out there,
and this week, I've added everyone, including the funny ones.

But did you know?
When studying other Hon-Gong books, people used to really, really hate studying, but with Vibe Coding... not a single person has said they don't want to study. And no one seems particularly sad that it's ending either. (Except for exactly one person).

I guess the level of fatigue you feel is definitely different between doing it yourself and giving instructions.
Alright. Let's keep this momentum, finish strong this week, and get some good rest during the Lunar New Year.

Also, take a look at the stray cat I met by chance in Mangwon-dong.

Keep going with the mindset of "I can do it whenever I want"
Sent by the Chief

Clicking the nickname will take you to the blog =33
But as you watch, you'll see some strange recipes, and sometimes they use only 2 ingredients when there are 10 listed. The moment you realize this, it's hilarious (p)

• Sam Park: Future development will be as much about 'how well you organize and instruct an AI team' as it is about 'writing code yourself.'

• Jekki: It takes 5 minutes just to learn it, so how can it be finished in 5 minutes? LOL

• Brian Han:openrouter.ai If the specified LLM fails to run... it automatically tries another LLM... but it ends up using an unintended, unspecified paid LLM.

• dongwoo kim: It seems like you need money to study AI comfortably. ㅠㅠ (Ah, will we feel the wealth gap through this in the future? lol...)

• zyqn:Suddenly reflecting on the past. Get well soon from your cold

• Lee*young:The title "Fridge Raid" is cute

• nlkjlkads: Pomodoro timer development complete

• Ryu*woo:You explain it so well step-by-step

• susu: I have so many ingredients in the fridge but I'm only using eggs and tomatoes... and I just improved the recognition rate!

• Reader: Since Gemini CLI cannot use sub-agents like Claude Code, I looked for other methods, and there are as many as three options.

• Mint Koala: I posted a food photo and asked, "Guess the ingredients~?"

• huchu90: Using a lotto number generator as a warm-up! The blog post itself is hilarious. They even brought up the Luddite movement now.

• Jihyun123: It feels like mental arithmetic being replaced by a calculator, but the fact that I am studying right now helps relieve the anxiety of an uncertain future.

• Meow Meow: Agents have puberty too. Meow Meow vs AI ->> Meow wins

• Gyver Tc: Completed up to the AI PDF summary program

• Eng Tokenizer: Wow, you've organized this so systematically.

• hongkyu lee: "Wait, an app can be made this simply?"

• Taewoong Kim: Received feedback through OpenRouter's AI and provided that content back to the Gemini CLI to incorporate the feedback.

• Jurepi : Please check out both posts.

Hello everyone,
this is Chief Hongong.

It's incredibly cold again today. But looking at the weather forecast, it seems it'll only be cold until today, and temperatures won't drop below zero for a while. You can be lazy just for today, and from tomorrow, it might be nice to take a walk and enjoy outdoor activities again.

Time flies so fast; it's already the Monday of the final week.
Strangely, time seems to flow twice as fast whenever I'm running the Hongong Study Group. I'm certain the World Time Association must be fast-forwarding the clocks.

Also, watching you all over the past 6 weeks, I noticed that even with "vibe coding," the content gets quite difficult toward the end, yet you all seem to follow along so well, which was amazing to see. Since everyone is becoming so good at coding, I've been seeing stories lately saying that because it's hard to get a job regardless of your major, people have started choosing the majors they actually want to study. Thanks to AI, the ˗ˋˏtrue positive function of universities is being manifestedˎˊ˗. Won't it be the same for workplaces later on? The concept of "a company I want to go to" might disappear, and a time will come when people have to create their own jobs by finding the work they want to do. What will I do for a living then? Hmm. Thinking that we're all in trouble together makes my anxiety about the future disappear. It's funny. (Actually, it's not funny.)

Anyway, those were just my thoughts on the near future.
Please submit your Hanbit+ ID to receive mileage points after submitting your Week 6 mission.
https://forms.gle/cwhasLhp7Ua2iKZY7

This week, I'm leaving a jazz playlist of arrangements of songs by my current favorite singer, Hanroro (there are no lyrics).
"Hanroro... but with a side of jazz🎺" | Hanroro Jazz Arrangement Playlist | #NoAImusic | HANRORO Jazz [playlist]

If you want to listen to something with lyrics when you're not studying,
while others might recommend "Everyone will fall in love" or "0+0," I recommend "Home."

That's all for now!
Best, Jokjang

Hello everyone,
this is the Hon-gong Leader.

I wanted to open the doors to the week energetically every Monday, but I couldn't make it to work yesterday because I came down with a bad cold. I'm usually a super healthy person who rarely gets sick... I wondered, "Who gave this to me?" and checked on the health of the friends I met last week, only to find out everyone was sick over the weekend. Unbelievable... Was the culprit... me?

Anyway, it's not always something you can avoid just by being careful, but please make sure to eat well, exercise hard, and get plenty of sleep so you don't get too sick. Got it?

This week, author Taeho Jo sent a surprise gift.
It is a resource site specifically for readers! https://www.vibeindex.ai/

To practice Vibe Coding, one needs to find good MCPs, skills, and plugins. However, since existing sites are often inadequate or contain broken links, the author mentioned having a lot of trouble guiding readers on "where to refer to" in books or lectures.

With the goal of gathering and managing all existing MCPs, skills, plugins, and marketplaces in one place in real-time, he created this website. (Cheers!)

There are over 25,000 resources, each with its own classification and Korean summary, so please check it out. Since the site itself was built using Vibe Coding, it also serves as a living sample of the book!!

Every time you access the site, it would be appreciated if you could bow once in the direction of the United States.

I'd like to recommend a playlist that has been relentlessly appearing on my feed all week. It has a great rhythm.
Nujabes songs I listen to when I read

Only 2 weeks left now. Yahoo! Yahoo! Yahoo!!
Best, Jokjang

Hello, this is the Hon-Gong Leader.
We are already halfway through the challenge, and the doors to Week 4 have swung wide open.

Perhaps it's because hosting this on Inflearn makes the management feel a bit more rigid, but there are definitely fewer late submissions. Or maybe it's just my imagination, and it's actually because Vibe Coding itself is easy and fun? Whatever the reason, it's truly wonderful to see everyone consistently continuing their studies without getting exhausted.

Following the handwriting recognition program, this week we will be building a To-Do list app.
I've noticed quite a few of you use Notion; please use that experience to plan and create something even better, and show off your skills. I'm looking forward to it.

As the project difficulty increases, you might feel drained due to token limits, so please remember to:
1. Split conversations by task units rather than making infinite revisions in a single chat
2. Develop the habit of making specific requests from the start
I would appreciate it if you keep these in mind.

Today, I've chosen the enchanting piano melodies of Rachmaninoff.
🌹I am a rose blooming amidst despair🌹

They say it will be very cold again this week. It helps to endure it by thinking, "Well, at least there will be fewer bugs this summer!" Also, make sure to wear a scarf. You won't feel as cold if you keep the wind away from your neck.

The 50% completion snacks will be sent out at a random time!
Best regards, Jokjang

Hello, I'm the Hon-Gong Leader.
I'll also be sharing the Week 2 study content unexpectedly.

Since it connects with Week 1,
and because everyone has reached the point where they can do the basic and optional missions with their eyes closed,
I've brought some of the most impressive posts.

Oh, before I share!
Seeing both free and Pro version Claude users suffering from token limits, I asked the author for advice. I'm sharing their response below.

Q. I'm studying Ch02 and hitting token limits. Will I encounter token limit issues more frequently as I progress?

A. First of all, I recommend separating your conversations. If you are hitting limits in Ch02, I suspect you are making too many repetitive revisions within a single conversation. When you give a revision instruction after performing a single task, all previous content is re-entered into the context, causing the cumulative context volume to increase rapidly.

It would be better to save the current code and then start a new conversation by attaching it. Even if you upgrade to Max, context constraints still exist, so making an effort to reduce cumulative context is one of the important skills in prompt engineering.

Consider this as practice, and it will be important to find your own methods, such as asking to summarize the current conversation before the context reaches its limit and then opening a new conversation by attaching the summary along with the latest code.

One more thing to add is that making specific requests from the beginning saves much more tokens than requesting revisions later.



Q. I'm using the Claude Pro plan; will upgrading to Max free me from token limits?

A. Actually, vibe coding isn't free. The fact that AI codes for you doesn't mean it's doing it for free. I believe it's important to choose the appropriate plan based on your goals.

Specifically, Claude Pro only provides slightly extended usage, so if you want more than what's covered in the book, upgrading to the Max plan could be a fundamental solution. However, the price difference is significant, so it's difficult for me to recommend it. Furthermore, even Max is not entirely unlimited.

As mentioned earlier, "1. Divide conversations by task units rather than revising infinitely in one conversation, and 2. Develop the habit of making specific requests from the start" is the best advice I can give you.

Seeing how others have studied is also a great help for your learning.
Click on a nickname to go to their Week 2 post =33

• hui5525

  • The one you made for the interview is the real deal... I'd love to work with you.

• Lee * Jin

  • The inclusion of dynamic elements definitely catches the eye.

• Strawberry-emong

  • The dynamic elements really make the achievements stand out.

• Jekki

  • Jin, you're seriously impressive... I only got one of those dad jokes right. I even came up with a "brilliant" wrong answer: "An-finger."

• Brian Han

  • "All free tokens are used up, so it's GenieMy canvas again this week!
    I shouldn't laugh, but the way you said 'they're all gone...' is so funny ㅠㅠ"

• dongwoo kim

  • It's cool how you upgrade it step-by-step from the first result.

• zyqn

  • I think it would be good to read it carefully.

    The part where you realized how to delegate work to employees while working is particularly impressive.

• Kim San

  • Wow, changing it to Burger King style is incredible.

• inchhw

  • I finished it all the way through without any free usage limits.

• Kim * Min

  • I really like the personal thoughts section in review question #4. Whether it's a human or an AI, giving vague instructions always ends up costing twice as much time and money!

    You did a great job even with the extra missions. The Chief says they want to see *Min make a Mandalart as well...

• Ryu*woo

  • They actually served up a CSP bypass method for image loading this week.

• susu

  • You did a really great job on both the marketer and developer portfolios.

• Reader

  • This is what it looks like when the design is modified to be dynamic and flashy.

• Bbogeul

  • Please take a look at the grey text written from the teacher's perspective lol

• Mint Koala

  • "I realized that step-by-step instructions are key, rather than asking for everything at once,"

• huchu90

  • Sonnet 4.5 is less refined, and switching to Opus 4.5 completely changes the vibe.

• fora02hj

  • Let's all give a round of applause to the self-studiers who studied while traveling.

• Jihyun123

  • Impact highlights section, backend development version~!

• Meow meow

  • I made this as a developer portfolio.

    You compared which AI coding tools are generous to developers on a budget.

• Gyver Tc

  • The page on how the Anchor Currency works is really fascinating..

• 21 Again

  • The 4-step portfolio strategy summary section is worth revisiting over and over.

• Eng Tokenizer

  • Please take a look at how the page changes depending on the prompt modifications.

• dsshin0110

  • Applied to an AI-based e-commerce business portfolio. Done.

• hongkyu lee

  • Wow, it's so cool how you saw a 40% complete result and immediately filled in the remaining 60%.

• Taewoong Kim

  • An extremely geeky cyberpunk theme

• Jurepi

  • The fact that it doesn't look like AI is the real deal. Seriously, please just come take a look at my portfolio. Please.

In closing... a thought I had this week:
I also try making things with "vibe coding" when I'm bored sometimes, and for both me and you... this meme came to mind for the first time in a while lolololololololol

I realized that I'm actually much worse at giving instructions than I thought, and if it were a real person instead of AI, I think they would have punched me lololololol T_T

Just as author Taeho Jo said, I'll try to build the habit of making detailed requests from the start. Let's go, both me and you!

I'll be heading out now...
Keep up the hard work on whatever you're doing!
Best, Chief

Hello, this is the Hon-Gong Chief.
Did you have a good weekend?
⠀
The weather was really nice over the weekend, but they say it's going to be freezing all week.
It wasn't as cold as I expected this morning, but it'll probably get really cold starting this evening, right?
What can you do when it's this cold... might as well just do some vibe coding at home lol
⠀
Starting today, we're going to dive into vibe coding using Claude code in earnest.
Since you've warmed up well so far, I'm sure you'll have no trouble with Ch03 if you follow the book and the lectures.
If you get stuck on anything, please be sure to leave a question on GitHub!!
If you solved it on your own, I'd appreciate it if you could share on your blog that you had this kind of problem and solved it in that kind of way!!

And something really important.
Since I'm planning to send snacks to celebrate the 50% completion mark once you finish Week 3,
please have fun creating the handwriting recognition program, even if it's not actually fun.
If there's a snack you're craving, feel free to casually leave a hint in the comments or on your blog—anywhere I can see it. I'll take it into account.
⠀
I'm leaving a cute, tinkling jazz playlist to keep your energy up while you study.
Clatter-bang💨 Pat & Mat, a morning starting with jazz 💥🔨
⠀
I'll also collect the Week 2 missions and share them unexpectedly!
Best, the Chief