Six Months in Review — From Firmware to Cloud, and a Blog That Moved
I moved this blog from Tistory to GitHub Pages, bringing all nine older posts with me. To mark the move, here’s what I’ve been doing in the six months since ...
Recent Posts
One Annotation Gets You an ERP Screen — Extending Open-Source Erupt into Our Platform
Build ERP long enough and a certain despair sets in. Define the entity, write the repository, write the service, write the controller, build the screen, wire...
1,500 Legacy PHP Files into 15 Microservices — All the Way to Production
I wrote about legacy refactoring in an earlier post, and it’s time for the follow-up on how far that project got. Short version: it went into production.
Rebuilding Coffee Machine Firmware from a Hex Dump — The Clock Wasn’t 16MHz
I usually write about web and cloud. Today it’s a completely different layer: rebuilding the control-board firmware for the coffee machines that go into our ...
Saying Goodbye to a 14,000-Line views.py — Moving a Django Monolith to a Java 21 MSA
This is about the backend of an unmanned-café SaaS — a system handling payments, orders, device management, loyalty points, and settlement for stores nationw...
Building an Exchange with Claude Code (3) — Throwing Java Out for Go + Rust
Third post in the exchange series. In part 1 and part 2 I built an exchange on Java/Spring. This one is about tearing that down and rebuilding it.
How Much Effort Does Developing With AI Actually Save? — An ERP Case Study
A hands-on account of one developer building an enterprise-grade ERP platform in collaboration with AI (Claude Code). Sharing the process behind what felt...
Building an Exchange with Claude Code (2)
Continuing from the last post…
Refactoring Existing Legacy Code with AI
This might be the easiest kind of project for an AI. It also seems like the most efficient.
Scribbles While Developing
It’s just past a week since I started developing with Claude Code.
Comparing Claude Code Efficiency When Building an App + Server
Reference: two juniors vs. one senior + Claude Code