OOP Polymorphism Explained: From Overriding to Protocols
Have you ever gotten confused trying to understand OOP polymorphism, from overriding to protocols, all at once?
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Follow the trail from foundational concepts to practical engineering decisions.
+load vs. +initialize: Timing and Inheritance Traps
Why does method-swizzling code always go in +load? Can’t we put it in the similar-looking +initialize instead?
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[iOS Architecture #6] Clean Architecture Essentials
You often see “based on Clean Architecture” in job postings and technical blogs. But when you open the code, every team has a different interpretation. Some use UseCase, others do not, and Repository responsibilities vary as well.
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[Vibe Coder #6] It worked yesterday, not today—why, when I didn’t touch the code?
“I didn’t touch a single line of code, but the app that worked fine yesterday doesn’t work today.” It’s the most common complaint in vibe-coding communities—and one of the most mysterious situations. It feels like a ghost story, but the suspects are actually limited. Investigate them in order, and you can usually catch the culprit before noon…
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[Open Source #1] Automating Threads with AutoThreads
GitHub is full of useful projects nobody knows about. Some lie buried with only a few stars before suddenly becoming popular. This series opens such repositories one by one to see what they do, how they were built, and whether they are actually useful.
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