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Daniel Jeun

The desk · Section

Projects

Everything I have built that is fit to publish. Sorted by editorial weight, not by date.

All Anime.js Astro 5 CSS Claude Code Claude Opus 4.7 Commander Express Fanar API FastAPI Flask Framer Motion Gemini 2.5 Gemini Flash JavaScript LaTeX Latin Hypercube Sampling MCP Netlify Next.js 16 Node PyTorch Python R Railway React React 19 SAC SHAP SMOTE SQLite Snowflake Supabase Tailwind v4 Tiptap TypeScript Vite WRF Solar XGBoost npm ranger scikit-learn tidymodels

Hackathon

A scribe for a language that's almost gone.

Claude transcribes the handwriting. The elder records the word. The page holds both, before the voice is gone.

2026

Research

Tuning a weather simulation with reinforcement learning.

A neural surrogate fills in for a fourteen hour WRF run. SAC searches on it, then commits to one real sim per loop.

2026

Machine learning

Foresee turns a CSV into an ML report in sixty seconds.

AutoML that ranks likely targets with Gemini and returns a trained model plus a readable PDF in about a minute.

2025

Client work

The prices were a screenshot.

A fencing club rebuilt off Wix, where the pricing and the schedule existed only as images nobody could read.

2026

LLM infrastructure

Function calling for an LLM that doesn't natively support it.

A prompt layer that teaches Fanar, an LLM without function calling, to speak the Model Context Protocol.

2025

Web app

An alumni archive only the team can write to.

Public to read, roster only to publish. The NJIT fencing team's memories live here, not in some Facebook group.

2026

Developer tools

A CLI for the people who hit Claude usage limits at 2am.

Switch between multiple Claude and Codex accounts, watch sessions live, see where the monthly budget is going.

2026

Hackathon

Let's Play Brisca.

Forty eight hours. A Spanish deck I drew myself. An AI that conserves trump cards because I told it to count them.

2025

Coursework

A credit risk report written by a pipeline of seven Claude agents.

UCI Taiwan 2005 defaults. The model is standard. The interesting part is the seven agent pipeline that wrote the paper.

2026

Machine learning

A heart disease model that explains itself.

UCI data, four models, SHAP on the predictions. Built to be inspected, not just scored.

2025

Personal

A photo album that turns on like an old television.

Thirty six images, one short caption each, opened by a retro TV intro. Mobile first, no backend, no scroll feed.

2025