I'm Joe Angel, a developer in Taipei and a co-founder of SITCON. I build open-source tools across systems, blockchain, and AI-native engineering—and I enjoy turning experiments into things other people can inspect, reuse, and improve.
My public repositories trace a path from Linux and PHP through JavaScript and iOS to blockchain tooling and governed AI-agent workflows.
- AI-native engineering — agent configuration and governed multi-agent analysis
- Systems and developer tools — inspectable tools for real operational problems
- Blockchain — utilities for observing and working with on-chain state
- Open source communities — sharing work and collaborating across Taiwan's developer communities
| Project | What it shows |
|---|---|
| coscup-2026-agenda-perspectives | Governed multi-agent analysis of a conference agenda from PR, program, and conference-lead perspectives. |
| gemini-showcase | A Gemini CLI setup with hooks, skills, agents, commands, and GitHub Actions. |
| bash-history-rebuilder | A resumable, CPU-aware macOS history recovery tool built with Python and SQLite. |
| linux-0.01 | A reproducible Docker and QEMU path for building and running Linux 0.01 on modern macOS and Linux. |
| tw-nhi-masks | An R project exploring volunteer supply and pharmacy staffing demand during Taiwan's 2020 mask-rationing response. |
| ether-checker-and-notify | A JavaScript utility that sends a Telegram notification when an Ether balance changes. |
- Systems & tooling: public work in C, C++, Shell, Python, Linux, and SQLite
- Web & mobile: JavaScript, Node.js, PHP, Swift, and Objective-C repositories
- Blockchain: balance monitoring and practical product experiments
- AI engineering: agent configuration, governance artifacts, and multi-agent analysis
- COSCUP 2020 — 溝通的藝術，專案經理與工程師的二三事 (video · collaborative notes). Looking back, I'm especially proud that I reserved half the session for Q&A, so people in the room could leave with answers they could use.
- COSCUP 2019 — 軟體工程師的養成之路與開源工具
I helped start SITCON and led public relations for its first conference in 2013. At COSCUP, I've contributed as a speaker and as part of the program team in 2020 and 2021, with continued cross-community collaboration in 2026.
I'm happy to meet people working on open source, blockchain, developer tools, AI engineering, or Taiwan's tech communities.