Customer obsession
Start with the human on the other side of the screen — then reverse-engineer the system.
A home for things worth building
James Guan
Engineer. Maker. Builder.
Customer-obsessed, data-oriented, and happiest when an idea becomes something you can ship — or hold.
How I work
A few phrases I actually mean.
Customer obsession, data over vibes, and the rest of the toolkit — without the poster-board energy.
Data over vibes
Opinions are cheap. Metrics, traces, and a nasty reproduction are how truth shows up.
Own the outcome
If it shipped with my name on it, I stay curious when it breaks at 2am.
Bias for building
A small, working thing beats a perfect slide deck. Prototype, measure, iterate.
Simple scales
Complexity is a tax. Pay it only when the customer actually needs the feature.
Always be calibrating
Whether it is a console launch or a filament profile — tune until the result is boringly reliable.
Practice
Willing to engineer — in code and in filament.
Different surfaces. One standard: make something that holds up.
Software engineering
Product UIs, AWS networking consoles, and systems that have to work under real load — measured, observed, and built for the people who depend on them.
3D printing
Filament profiles, print tuning, and designs that leave the slicer and hit the build plate. Published as GhostOfRazgriz on MakerWorld.
Building in public
Side projects, personal git, and tools I actually use. If it is worth making, it is worth finishing — and worth learning from.
Out in the world
Find the work where it lives.
Prints, repos, and a personal forge — open a preview and go.