Posts

• Python Random Fact: Should You Use Getters and Setters in Python?

  Python chooses convention over restriction. Should You Use Getters and Setters in Python? Probably Not at First.

  Tags: python

  Published at: 2026-01-02

• Algorithm: BST

  Basic BST (Binary Search Tree) implementation in Python, covering add/remove operations and the three traversal methods.

  Tags: algorithm, bst, binary search tree

  Published at: 2026-01-02

• Python Random Fact: iterator vs list

  Iterators stream data in O(1) memory, while lists allocate O(n) for all items.

  Published at: 2026-01-02

• Algorithm: Heap

  Basic heap implementation in Python. Describing the sift-down & bubble-up operations.

  Tags: algorithm, heap

  Published at: 2025-12-30

• Coding Tips: Simplify your code with generalized methods

  Generalized methods simplify your code. We start with a simple doubly linked list example, then simplify it with two generalized methods.

  Tags: coding, tips

  Published at: 2025-12-22

• Python Random Fact: Mutable Objects Are Shared by Default

  Passing mutable objects without copying can cause unexpected value changes.

  Tags: python, random fact

  Published at: 2025-12-18

• What Makes Code Testable?

  Code that is "observable" and "predictable" in terms of behavior and state is easy to test. The less there is, the more observable and predictable it becomes.

  Tags: test

  Published at: 2025-11-20

• Why Doesn’t Work Get Easier Even After Introducing AI?

  People fundamentally don’t want to face the real issues. "Let’s just install a tool for now" does not solve the real issues.

  Tags: idea

  Published at: 2025-11-19

• Keep locks as small and as few as possible.

  When designing concurrent applications, I learned that locks should be as few and as small in scope as possible.

  Tags: Go

  Published at: 2025-11-04

• How atomic module works in Go?

  In Go, the atomic package works on pointers, not on copied values.

  Tags: Go

  Published at: 2025-11-04

• What is a DTO and Why?

  A DTO (Data Transfer Object) acts as an interface for a domain model between different applications or layers that need to use it.

  Published at: 2025-10-23

• What MPS Does?

  MPS improves GPU utilization by letting multiple processes share a single global context so their kernels can run concurrently instead of sequentially.

  Tags: GPU

  Published at: 2025-09-17

• Real-time speech recognition systems with automatic language detection

  In this article, I introduce a system design that automatically detects the spoken language without any language setting and performs speech recognition.

  Published at: 2025-08-31

• ssh-monitor - terminal-based SSH monitoring tool.

  A terminal-based SSH monitoring tool. If you need to maintain multiple physical servers and connect via SSH, this tool will help you.

  Tags: personal project, ssh, monitoring

  Published at: 2025-08-25

• Check before fix.

  Before touching the code, understand what is working and what is broken.

  Tags: debug, audio process, cpu optimize

  Published at: 2025-08-17

• Real-Time Transcription Fallback and Recovery — Postmortem and Debugging Notes

  Audio was lost during STT fallback due to WebSocket server hangs, Azure thread conflicts, and network instability. I fixed it by adding read timeouts, refactoring thread lifecycles, and improving logging across server and mobile. This stabilized recovery and minimized audio loss.

  Tags: debug, stt

  Published at: 2025-08-06

• Refactoring with Interface

  The interface is not just about input/output, but also about exceptions. Exceptions can be observed from the outside.

  Tags: Coding, Code Architecture

  Published at: 2025-06-18

• Fight with AI

  AI can melt your brain. The root cause is multitasking and context switching. You need to focus more on best practices from before the AI era.

  Tags: AI, Task Management

  Published at: 2025-06-09

• mejiro-cli - A Tiny Blog Management CLI

  I’ve built a tiny Markdown-based blog management CLI.

  Tags: cli, blog, mejiro

  Published at: 2025-06-08