Junghwan shaun0927

About

Building AI products that matter.

CTO @ Rivetta — Designing the core IP memory-system for K-webnovels. A single source of truth that powers webtoons, dramas, shorts, character chat, and licensing downstream. Harness engineering architecture for translation is step one.

CEO @ AlphaView — AI-driven stock news analysis platform. (Solopreneur)

26.02 Official Launch / Reached MAU 20k

What I Do

Rivetta

CTO — Core IP memory-system for K-webnovels

AlphaView

CEO — AI Stock Analysis

Building alphaview.kr, an AI-powered platform that analyzes stock news and market signals to help investors make informed decisions.

Background

	Experience	Focus
🧬	Neuroscience	Trans-synaptic retrograde signaling research
📚	8 Years Literary Translation	Novels, webtoons, creative content
🔧	3 Years Technical Translation	Documentation, ML papers, technical specs

Achievements

GPU Hill Climbing Ensemble for NVIDIA Merlin Framework
_{CTR prediction on 10M rows of real financial data (Recommender System)}
📄 Technical Report (EN) | (KR)

Competition Domains

Recommender System CTR Prediction NLP Prompt Engineering Time Series Computer Vision Tabular ML Anomaly Detection

Open Source Contributions

First Developer got banned/recovered from github by uploading "too many merged PRs" (https://x.com/JunghwanNa8355/status/2046224197672984824?s=20)

Total 1000K+ stars contribution in external public projects.

Auto-refreshed 2026-07-01 via gh CLI (update_oss_contributions.py): 549 PRs merged across 52 curated repos below. Star counts via repos API; merged-PR counts via GraphQL search.

Harness engineering

Project	Description	Stars	Merged
ouroboros	workflow engine driven by specs instead of prompts	⭐ 4,749	390
oh-my-claudecode	multi-agent orchestration for Claude Code	⭐ 37,207	51
oh-my-codex	hooks, agent teams, and HUDs for Codex CLI	⭐ 31,538	13
zeroclaw	autonomous AI personal assistant infrastructure	⭐ 32,105	5
multica	managed coding-agents platform	⭐ 38,595	4
claude-hud	Claude Code plugin with context/tool HUD	⭐ 25,978	4
nanobot	lightweight personal AI agent	⭐ 44,895	3
camel	multi-agent framework	⭐ 17,303	3
dify	platform for agentic workflow development	⭐ 147,148	2
mempalace	open-source AI memory system	⭐ 56,780	2
Flowise	visual builder for AI agents	⭐ 54,142	2
mastra	TypeScript framework for AI apps and agents	⭐ 25,629	2
OpenHarness	open harness for coding agents	⭐ 14,308	2
GenericAgent	self-evolving generic agent framework	⭐ 13,215	2
omi	AI wearable assistant that sees and listens	⭐ 12,907	2
goclaw	Go rebuild of OpenClaw with multi-tenant agent isolation	⭐ 3,363	2
lobehub	multi-agent collaboration space	⭐ 79,281	1
agent-skills	engineering skills library for coding agents	⭐ 68,188	1
agno	framework for running agents as production software	⭐ 40,922	1
picoclaw	tiny deployable coding agent	⭐ 29,533	1
haystack	AI orchestration framework for LLM applications	⭐ 25,792	1
agentmemory	persistent memory for coding agents	⭐ 24,358	1
context-mode	context-window optimization for AI coding agents	⭐ 18,386	1
oh-my-pi	terminal-native AI coding agent	⭐ 15,332	1
harness	meta-skill that designs domain-specific agent teams	⭐ 8,110	1
osaurus	native macOS runtime for local LLMs	⭐ 6,482	1
XcodeBuildMCP	MCP server for iOS and macOS build tooling	⭐ 6,007	1
Yuxi	multi-tenant agent harness with LightRAG knowledge base	⭐ 5,912	1
awesome-harness-engineering	curated list of harness engineering tools and guides	⭐ 3,395	1
acpx	headless CLI for Agent Client Protocol sessions	⭐ 2,921	1
alphaclaw	setup harness for OpenClaw	⭐ 1,421	1

ML

Project	Description	Stars	Merged
pytorch-grad-cam	visual explainability for CNNs and vision transformers	⭐ 12,893	7
FootTrafficReport	foot-traffic analytics report project	⭐ 6	5
PyPOTS	toolkit for partially-observed time-series modeling	⭐ 2,026	4
supervision	reusable computer vision tools	⭐ 45,897	3
darts	time-series forecasting library	⭐ 9,429	3
voicebox	open-source AI voice studio	⭐ 36,301	2
marimo	reactive Python notebook for experiments and apps	⭐ 21,643	2
anomalib	anomaly detection library	⭐ 5,889	2
chronos-forecasting	foundation models for time-series forecasting	⭐ 5,535	2
dflash	block-diffusion flash speculative decoding kernels	⭐ 5,331	2
PaddleOCR	OCR toolkit for structured document extraction	⭐ 84,362	1
VoxCPM	tokenizer-free multilingual TTS	⭐ 32,225	1
open_clip	open source CLIP implementation	⭐ 13,955	1
sktime	unified framework for ML on time series	⭐ 9,827	1
gorse	recommender system engine	⭐ 9,736	1
statsforecast	fast statistical and econometric forecasting	⭐ 4,819	1

Other

Project	Description	Stars	Merged
PLFM_RADAR	10.5 GHz phased-array radar	⭐ 22,100	3
immich	self-hosted photo and video management	⭐ 104,772	1
openscreen	open-source screen demo recorder	⭐ 39,050	1
crawlee	web scraping and browser automation library	⭐ 24,369	1
map-to-poster	map-to-poster generator	⭐ 942	1
wacli	WhatsApp CLI	⭐ 2,573	0

AI Coding Agent Usage

Platform	Models	Share	Messages	Tokens	Cost
	`opus-4-7` `opus-4-6` `opus-4-8` `+8`	`███████░░░░░░░░░░░░░` 36.6%	543,356	56.3B	$61,170
	`5.5` `5.4` `5.3-codex` `+2`	`████████████░░░░░░░░` 61.6%	724,373	94.6B	$57,597
	`5.5` `mimo-v2.5-pro-ultraspeed`	`█░░░░░░░░░░░░░░░░░░░` 0.6%	48,874	986.2M	$1,146
	`opus-4-8` `fable-5` `mimo-v2.5-pro-ultraspeed` `+3`	`█░░░░░░░░░░░░░░░░░░░` 0.6%	4,520	998.2M	$770.73
	`5.5` `codex-auto-review`	`█░░░░░░░░░░░░░░░░░░░` 0.5%	7,428	784.6M	$631.10
	`2.5-pro` `2.5-flash`	`█░░░░░░░░░░░░░░░░░░░` 0.0%	19	314.5K	$0.18
Total			1,328,570	153.7B	$121,315