Hello Visitor. I'm Ferry. Hello. I'm Ferry.

I am a software engineer, system architect, and micro-SaaS builder with two decades of experience. I help solo and small businesses grow through simple, pragmatic .NET applications, workflow automation, and third-party integrations.

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Tech Blog

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2026-06-20

SQLitePCLRaw vulnerability affecting .NET 10

Recording a sudden project build error due to SQLitePCLRaw vulnerability.

2026-03-08

First hand experience of future SDLC in AI era

Thoughts from helping my wife to launch her vibe coded tool

2026-02-19

Reduce Review Fatigue in the AI Coding Era: My .NET Guardrails

Repo-wide strictness for AI-assisted C#: Directory.Build.props, .editorconfig, and pre-commit checks that catch issues early.

Diary

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2026-04-19

寫在 IT 狗 2.0 首播前

What my startup experience similar to a ViuTV comedy before the sequel on stage

2025-12-31

2025年回顧及2026年展望

Recap of my 2025 and my plan for 2026

2025-10-10

系統人生 LifeGPT

Part I of my life system series, understanding the people in your life.

Whispers

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"把握時機，人生里程碑！" - Elaine

"做又做唔起，餓又餓唔死。" - Elaine

"有得食，好積極。" - Elaine

Projects

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Update README Action in C#

.NET

GitHub Actions

Docker

A Docker-based GitHub Action that refreshes marked README sections with recent Medium stories and Stack Overflow activity.

.NET

GitHub Actions

Docker

AI Environment as Code

.NET

CLI

Git

Version your AI environment, automatically. A .NET CLI that keeps Codex instructions and selected configuration in Git.

.NET

CLI

Git

Theme Color Playground

A framework-free browser tool for building, comparing, and exporting accessible light and dark colour systems.