iOS / Swift engineer · OSS maintainer · product builder

• 📬 Xin (2026) — A JMAP command-line tool that gives AI agents a native and efficient way to access Fastmail or any JMAP API-compatible mail provider.
• 🐱 MeetCat (2026) — A Google Meet assistant that auto-joins meetings and manages microphone and camera settings.
• 🤖 Oh My Agents (2026) — Centrally manage skills and prompt configurations across AI agents and projects; use one source of truth to keep multiple target agents in sync.
• 🦀 TransCrab (2026) — Built OpenClaw-first: fetch and translate links into clean, focused pages in your own language.
• 🦭 seal (2026) — An AGE encryption toolkit for securely passing sensitive information between agents and terminal devices during agent conversations.
• 🚢 ai-ship (2025) — Notes and reflections while exploring AI workflows, prompts, and interaction patterns.
• 🔗 Magpie (2025) — A lightweight link collection and sharing system, designed for simple self-hosting.
• 🎨 vs2x (2025) — Convert VS Code themes into Xcode-ready themes with minimal manual tweaking.
• 🎨 Chroma (2025) — Syntax highlighting engine for Swift TUI and CLI applications.
• 🐊 Croc24 (2025) — Little Croc 24: a playful app for 24-point calculation, puzzles, and challenge runs.
• 🧩 Delegate (2021) — A meta library to provide a better Delegate pattern.
• 📚 ObjC CN (2019) — Website source and publishing infrastructure for objc.io China content.
• 🌐 UniWebView (2017) — A long-running web view solution for Unity projects across major platforms.
• 🪶 Kingfisher (2015) — A high-performance image downloading and caching library for modern Swift apps.
• 🌈 Rainbow (2015) — A lightweight ANSI styling library for delightful Swift console output.
• 🖼️ APNGKit (2015) — A high-performance APNG playback framework for Apple platform applications.
• 🧹 FengNiao (2014) — A CLI tool to detect and clean unused image assets in Xcode projects.

• 🧬 ChimeraGate (2025) — Bridge Claude Code subscription access into an OpenAI API-compatible provider endpoint.
• 👁️ ObservationBP (2023) — Proof of concept for back-porting the Observation framework to earlier iOS versions.
• 🦉 Hedwig (2016) — A Swift SMTP library for sending email in a clean cross-platform manner.
• 📝 VVDocumenter-Xcode (2013) — An Xcode plug-in that speeds up writing structured documentation comments.

• ✍️ Blog — Essays on Swift/iOS, engineering, and building with AI.
• 🚢 In AI for the Ride — Notes and reflections on AI workflows, prompts, and interaction patterns.

• 🐦‍⬛ Magpie — A lightweight link collection and sharing shelf.
• 🦀 TransCrab — A clean, translated reading shelf built around links.
• 📓 mewmoire — A public diary of @onevclaw, writing about building and learning.

• 🏠 onev.cat
• 𝕏 @onevcat
• 📮 Email