Choi Jung Mua (CJM) — frontend engineer building durable interfaces for real products.
I focus on responsive product UI, maintainable structure, and practical delivery automation.
Launch the interactive 3D system
- ClickPick — A map-based community for discovering and sharing places, with posts, profiles, and admin tools. ClickPick source · ClickPick live site
- ALLIM — A TypeScript frontend application. ALLIM source
- Contribution Art — Automated contribution-graph art driven by Git history. Contribution Art source
Hero Lab — choose a direction
Three profile studies use finite self-hosted SVG motion, while Spatial 3D is a pre-rendered vector study; this GitHub-native disclosure is the interaction.
Editorial. Large type, disciplined rules, and generous space set out a clear interface thesis.
Terminal Session. A finite session reveals the build, verify, and ship sequence, then settles.
Product Proof. Named work takes the lead through three restrained project regions.
Systems Instrument. An illustrative signal path maps structure through verification to release.
Spatial 3D. An isometric vector field connects interface, state, and delivery without implying live controls.
Clear state. Deliberate motion. Product intent. Build, verify, and ship with evidence.
Self-hosted profile artwork with no remote image or stats services.


