LangChain with TypeScript - LLM & RAG Introduction
ivybae
TypeScript LangChain Basics: From LLM Essentials to RAG
Beginner
LangChain, LLM, prompt engineering
Ivy's Android Drill
Everything you need to know to get a job as an Android developer
(5.0) 11 reviews
55 learners
Level Basic
Course period 12 months
Android
Android
Kotlin
Kotlin
Jetpack
Jetpack
Android
Android
Kotlin
Kotlin
Jetpack
Jetpack
Reviews from Early Learners
Reviews from Early Learners
5.0
5.0
augustthree
78% enrolled
I took this course as a beginner in Android. It was very satisfying because it was structured to learn from the basics to advanced, rather than just learning Java, Kotlin, and Android development superficially. The instructor also taught me how to study by referring to the official Android documentation, which was very convenient when I studied alone later, and it gave me time to get used to difficult documents, so I think I gained the ability to study on my own :) If I were to recommend a study method, I think it's good to follow the lectures and practice at first, but if you study by dividing the lectures into chapters and organizing them, you can learn the concepts well!!
5.0
이훈
66% enrolled
"Essential lecture for Android developers" Many of you may agree, but learning Android through YouTube lectures or Googling is like collecting dragon balls, collecting a lot of pieces of information. It is hard to feel like you are truly learning with your own knowledge. However, this lecture provides many things that Android developers need to know, one by one, from the basics. It also helps you learn detailed things such as how to use official documents and coding conventions, so even though I am still a job seeker (unemployed), I feel like I have a great mentor. If you are seriously considering a career as an Android developer, I definitely recommend purchasing it. I bought it after seeing the great curriculum, and I am very satisfied. [Recommended for purchase] 1. Developers who struggle to create projects while Googling, but always have ambiguous results 2. Major students who lack the basics and don't know how to learn 3. Anyone who has a mentor who only tells you to refer to the official documents without looking at the official documents themselves
5.0
0508gyhun
96% enrolled
I think this is the best lecture for those who are new to Android. It explains the flow logically and solves errors that beginners may encounter. The explanations are kind and detailed, and most of all, it naturally teaches us how to refer to references and study after the lecture based on the official document. It was a more engaging class because the concepts were mixed based on 3 projects. Thank you for making this lecture!!
What you will gain after the course
Practical level Android knowledge
Kotlin and Java Grammar Required for Android Development
Improving development capabilities through projects
What if your goal is to get a job as a developer?
Everything you need to know to become an Android developer.
With solid practical skills
Growing as an Android Developer
👉 This is the course that has trained the largest number of new Android developers both online and offline over the past three years.
Please pay attention to these people.
Working Android developer with poor basics
This is perfect for developers who started their careers as Android developers but are struggling to keep up with the latest trends.
Beginners interested in Android app development
Based on my experience teaching beginners from various backgrounds, including those who are not majoring in the field or are transitioning from a career, I will explain in detail from the basics.
Someone who has programming experience but has no project execution experience yet
Even majors find it difficult to develop development skills without project experience. This course is essential for those who possess a solid understanding of the concepts but lack practical experience.
Anyone who wants to make their ideas come true
Learn various knowledge required for Android development by launching an app.
After finishing the lecture
You can grow to a level where you can be employed.
- You can create your own portfolio based on what you learn in class and start preparing for employment right away.
I will be able to explain the code I wrote.
- The lectures explain the implementation process in detail, so you can learn how to explain what you have learned.
You will be able to develop projects that you can add to your portfolio.
- You can create your own projects using a variety of technologies used in the field.
✅ We will answer the questions that job seekers are most curious about.
- We answer the most frequently asked questions from job seekers during orientation classes.
- We run a Discord channel for our students.
carefully prepared
Key benefits of this course
This course reflects the learning roadmap expected of new developers.
It reflects the know-how accumulated over the past three years by training many new Android developers and creating numerous portfolios.
You will learn the fundamentals of Android development and how to explain code.
This course starts with Kotlin and Java grammar and the basics of Android development, helping beginners gradually improve their skills.
Develop three practical projects that incorporate the designer's requirements.
We provide links to Figma projects so you can develop projects under conditions similar to real-world work. We also provide guidance on using Zeplin.
Which led to actual employment
Reliable education
Q&A for Prospective Students 💬
Q. Is it okay to get a job as an Android developer as an entry-level employee?
Unlike web front-end, back-end, and iOS, Android has few bootcamps offering systematic learning. Therefore, it's easier to secure a competitive edge compared to other fields.
Most students who trusted me and diligently followed the curriculum have found employment as Android developers at satisfying companies. If you dedicate enough time to learning, you too can achieve the results you desire!
Q. Will taking this course help me launch my own app?
After completing the 80-hour curriculum, you'll be equipped with the skills to create high-level apps. Therefore, this course is ideal for those considering not only employment but also entrepreneurship!
Q. Why is it 80 hours long when other lectures are only about 10 hours?
Realistically, I don't think 80 hours is a long time to reach a practical level. You'll need to invest even more time.
Having taught numerous students over the years, I've developed 80 hours of content that maximizes efficiency online. Please consider this minimum amount of learning and stick with it!
Things to note before taking the course 📢
Practice environment and tools
- IntelliJ Community Edition, Android Studio
Learning Materials
- Implementation code for 3 Android projects
- Figma Project Link
- Example code for learning concepts
- 80 hours of lectures
Player Knowledge and Precautions Guide
- This is a lecture that even beginners can learn by watching it over and over again.
- The copyright of the lecture and educational content belongs to One Million Lines Coding and the instructor.
- Please check the contents of the orientation class, 'Information on Copyright of Educational Content'.
Recommended for
these people
Who is this course right for?
Job seeker
Android Junior Developer
A specialist with no project execution experience
Senior developer who wants to build a foundation
Hello
This is ivybae
931
Learners
24
Reviews
13
Answers
5.0
Rating
1
Course
CEO of One Million Lines Coding
After successfully transitioning my career from a math instructor to a developer, I began teaching development at the NAVER Connect Foundation Boostcamp while working as an Android developer. Currently, I have founded One Million Lines Coding and am nurturing future developers through lectures and mentoring at various educational institutions.
Education Inquiries 1mlinescoding@gmail.com
Teaching Experience
Naver Boostcamp Android and AI Education (2021–Present)
YouTube Channel: Agent Minsu
LinkedIn Group Management: Microsoft AI Agent Korea User Group
Technical reviewer for the book *Building ChatGPT and LLM Systems Quickly and Easily with Azure OpenAI* (2025, J-Pub)
(Former) Boot camp instruction and operations at Hyundai Motor Company, Woowa Tech Camp, Modulabs, CodeSquad, Wanted, etc.
Developer Experience
Kakao Entertainment
ProtoPie
NBT
Co-instructor
Curriculum
All
508 lectures ∙ (86hr 39min)
Course Materials:
Lecture resources
Published:
Last updated:
Reviews
All
11 reviews
5.0
11 reviews
gfdsa565073Reviews 3
∙
Average Rating 5.0
5
66% enrolled"Essential lecture for Android developers" Many of you may agree, but learning Android through YouTube lectures or Googling is like collecting dragon balls, collecting a lot of pieces of information. It is hard to feel like you are truly learning with your own knowledge. However, this lecture provides many things that Android developers need to know, one by one, from the basics. It also helps you learn detailed things such as how to use official documents and coding conventions, so even though I am still a job seeker (unemployed), I feel like I have a great mentor. If you are seriously considering a career as an Android developer, I definitely recommend purchasing it. I bought it after seeing the great curriculum, and I am very satisfied. [Recommended for purchase] 1. Developers who struggle to create projects while Googling, but always have ambiguous results 2. Major students who lack the basics and don't know how to learn 3. Anyone who has a mentor who only tells you to refer to the official documents without looking at the official documents themselves
- developbullets
Reviews 3
∙
Average Rating 5.0
5
54% enrolledThis is the best lecture that I would highly recommend to anyone who is interested in Android development or is currently developing Android. In particular, it perfectly harmonized theory and practice, and I was able to learn practical knowledge that can be applied directly to actual projects. I was really lucky to be able to take such a high-level lecture. I sincerely thank Ivy!
- wltjr
Reviews 1
∙
Average Rating 5.0
5
78% enrolledI took this course as a beginner in Android. It was very satisfying because it was structured to learn from the basics to advanced, rather than just learning Java, Kotlin, and Android development superficially. The instructor also taught me how to study by referring to the official Android documentation, which was very convenient when I studied alone later, and it gave me time to get used to difficult documents, so I think I gained the ability to study on my own :) If I were to recommend a study method, I think it's good to follow the lectures and practice at first, but if you study by dividing the lectures into chapters and organizing them, you can learn the concepts well!!
- 0508gyhun4478
Reviews 3
∙
Average Rating 3.7
5
96% enrolledI think this is the best lecture for those who are new to Android. It explains the flow logically and solves errors that beginners may encounter. The explanations are kind and detailed, and most of all, it naturally teaches us how to refer to references and study after the lecture based on the official document. It was a more engaging class because the concepts were mixed based on 3 projects. Thank you for making this lecture!!
- pointmina9750
Reviews 1
∙
Average Rating 5.0
Edited
5
80% enrolledI am a fan of Teacher Ivy. She always answers even the most trivial questions very kindly. For absolute beginners, I think it would be helpful to listen repeatedly at 0.5x speed. My skills have improved significantly through her lectures, and they were very helpful in carrying out my graduation project. However, the one disappointing thing is that we only learn the basics of Compose, and it doesn't show how to apply it to a project ㅠ.ㅠ It would be great if the final shopping app content was made using Compose.
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