Swift & Objective-C
Learn Swift and Objective-C syntax, type systems, runtime behavior, and concurrency from first principles.
7 ARTICLESSWIFT · iOS · SOFTWARE ENGINEERING
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Complex engineering concepts stick when you understand their roots. A senior iOS developer explains them in practical language.
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Apple Development
Connect language and runtime concepts to real app architecture.
iOS Engineering
Connect app architecture, UI, builds, and modularization to practical iOS decisions.
0 ARTICLESSoftware Engineering
Link design, quality, and computer science across platforms.
Software Design
Understand design principles, patterns, dependencies, and module boundaries through context and tradeoffs.
12 ARTICLESStart here [SOLID #1] SOLID in Five Letters: Understand It Instead of Memorizing It (SRP · OCP · LSP)Testing & Code Quality
Change code safely with tests and refactoring while maintaining quality.
0 ARTICLESComputer Science
Build strong foundations in data structures, operating systems, memory, and concurrency.
0 ARTICLESAI Development
Move from AI fundamentals to productive coding-agent workflows.
AI Fundamentals & Tools
Understand generative AI and evaluate practical tools with clear criteria.
3 ARTICLESAI Coding & Agents
Use coding agents, MCP, context engineering, and vibe coding in practical workflows.
2 ARTICLESStart here [MCP·Skill #1] What Is an MCP Server? From Connection Methods to Security ConsiderationsLATEST FOOTPRINTS
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Reusable concepts and decision criteria gathered while solving today’s engineering problems.
Swift Strategy Pattern: Swapping Algorithms with Protocols and Closures
Have you ever dealt with code where if-else branches kept multiplying for each payment method?
Read article[SOLID #2] SOLID Principles in Practice (Part 2): ISP · DIP and Why Dependency Injection Exists
In the previous article, we covered the first three letters of SOLID—SRP, OCP, and LSP. Today, we’ll wrap up the remaining two.
Read articleThe Principle of Least Astonishment: Why getUser Shouldn’t Send Email
Have you ever encountered a function like this during a code review?
Read articleNaver Blog AI Automation: How Far Is Possible, and Where Does It Violate the Rules?
These days, many more people are writing blog posts with AI tools such as ChatGPT and Claude. If you take it a step further, you may even start wondering, "Why not automate everything from generating the post to publishing it?"
Read article[MCP·Skill #1] What Is an MCP Server? From Connection Methods to Security Considerations
Using ChatGPT or Claude can leave you wanting more. The models are smart, but they cannot see your database or read your internal wiki.
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