Ha-Rin Seong Dewey-Choi
self-taught systems engineer. currently studying at Cypress College. i build, break things apart, and figure out how everything works from the ground up — hands-on learning, real-world problem solving.
what i know
systems & infra
- system administration
- malware / virus removal
- software config
- network troubleshooting
hardware
- DIY PC building
- component selection
- hardware diagnostics
- electrical / repairs
web & dev
- rust
- c
- web development
- emulator development
- sqlite
networking
- pfSense router setup
- home network design
- LAN configuration
- troubleshooting
experience
dental lab technician — 10 years
CAD/CAM implants, bars, crowns, bridges. precision, attention to detail, complex manufacturing workflows under 12–24h shifts. shaped the work ethic.
full-time tech builder
transitioned into software engineering and systems programming. building real applications while studying at Cypress College.
philosophy
build & learn
real knowledge comes from hands-on experience — build it, break it, understand it.
efficiency
always looking for a better, leaner way to do things.
community
giving back — UGF initiatives and helping others learn the same way.
use what you've got
HBM and GPU prices are out of control. so i test everything on the 2016 GTX 1080 i already own — still a supercomputer if you use it right. might add a second card down the line.
why built not taught
learn by building, not just reading. whether it's code, PCs, home networks, or community projects — real knowledge comes from doing. this site is where i share the journey.