MJ Hwang ArkNill
Full-stack engineer — SQL-native tuning across 6 DBs · Python/Java backend · AI service pipelines end-to-end
- Seoul, South Korea
- https://arknill.github.io
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The agent that grows with you
Qwen3.5-122B-A10B on DGX Spark: 28.3 → 51 tok/s (+80%)
Production-grade engineering skills for AI coding agents.
Fixes prompt cache regression in Claude Code that causes up to 20x cost increase on resumed sessions
한국인을 위한 스킬 모음집 - SRT, KTX, 카카오톡, 한글과컴퓨터, 날씨, 미세먼지, 법령, 주식정보, 조선왕조실록, KBO, K-리그, LCK, 특허 검색, 토스 증권, 맞춤법 검사, 중고차 가격, 쿠팡, 네이버 블로그, 다이소, 올리브영, 택배 송장 조회 등등...
Measured analysis of Claude Code cache bugs causing 10-20x token inflation on Max plans
AI Vibe Coding Agent of TS backend server, enhanced by compiler skills, generating 100% working code
Garry's Opinionated OpenClaw/Hermes Agent Brain
AI-powered job search system built on Claude Code. 14 skill modes, Go dashboard, PDF generation, batch processing.
Official Compound Engineering plugin for Claude Code, Codex, Cursor, and more
A curated list of engineering blogs of startup and enterprise companies
A curated list of engineering blogs
Awesome RSS feeds - A curated list of RSS feeds (and OPML files) used in Recommended Feeds and local news sections of Plenary - an RSS reader, article downloader and a podcast player app for android
한국 서비스에 이용 가능한 Public API 모음 | Public APIs Available for Korean Services
An extremely fast Python linter and code formatter, written in Rust.
The Python micro framework for building web applications.
Data validation using Python type hints
Plumb a PDF for detailed information about each char, rectangle, line, et cetera — and easily extract text and tables.
Define and run multi-container applications with Docker
This is a python API which allows you to get the transcript/subtitles for a given YouTube video. It also works for automatically generated subtitles and it does not require an API key nor a headles...
A high-throughput and memory-efficient inference and serving engine for LLMs
The pytest framework makes it easy to write small tests, yet scales to support complex functional testing
For developers, who are building real-time data-driven applications, Redis is the preferred, fastest, and most feature-rich cache, data structure server, and document and vector query engine.