A location-based spatial world built over real-world geodata (OpenStreetMap + Copernicus GLO-30 elevation).

The work includes custom spatial coordinates and hierarchy, compact typed-array transport, terrain representation and streaming, a sparse-octree object layer for placed voxels, voxel rendering, and LOD.

This is also where I'm leaning on AI-assisted implementation the most, while still designing the core system architecture and representations myself.

An undergraduate research project extending SCALE-Sim with PREMA (HPCA 2020), a preemption-aware multi-task scheduling algorithm for neural accelerators.

The implementation adds task scheduling, runtime prediction, checkpoint/resume, and mid-layer preemption to the simulator.

A from-scratch, user-level ELF64 loader, demand pager, and cooperative thread runtime for x86-64 Linux.

Written as a programming test for admission to a KAIST research lab, with no starter implementation. It builds process startup state manually, implements SIGSEGV-driven demand paging and cooperative user-level scheduling, and transfers control directly into loaded binaries.

A keyboard rhythm game inspired by DJMAX, originally written in Flash and later revived and ported from ActionScript 2 to ActionScript 3.

Along with the game itself, it includes a note editor and configuration tooling.

My first long-running software project, started in middle school.

A widget-based desktop launcher built with Flash/ActionScript 2 — widgets snap to a grid across multiple pages, each with its own settings, inside a shared launcher UI.

It began as a quicker way to search the web and gradually grew into a small personal software environment.

• Computer systems and architecture
• Representation and abstraction design
• Memory, locality, and accelerators
• Graphics and spatial computing
• Tools and systems that genuinely reduce complexity
• Interface and visual design, especially in earlier projects

I've worked professionally on web software as well, but this profile is mostly an archive of things I've built, explored, and learned outside of day-to-day work.