I build practical AI tools and macOS apps, and explore how language models work under the hood.
Based in Shanghai · Building on GitHub since 2015 · Email
Glim — a file viewer for macOS
Markdown, PDFs, images, JSON, CSV and source code in one workspace. Free and open source, with support for Apple Silicon and Intel Macs.
一个工作区，查看文档、数据与代码。
Blackstone / 黑石 — writing skills for AI assistants
Writing workflows for long-form and short fiction, with local manuscripts and optional cloud story memory to track characters, timelines and plot threads across chapters.
把写作方法装进 AI，帮助作者设计故事、续写改稿、检查跨章节的一致性。
learn-llm — Qwen3 inference from scratch in C
A learning project implementing Qwen3-0.6B inference in roughly 3,000 lines of C, including tokenization, attention, KV cache, sampling and an OpenAI-compatible HTTP server.
从零拆解一次大模型推理，用逐层数值对拍检验实现。
Code & build instructions · Design notes
ezpay — Go SDK for memberships, subscriptions and in-app purchases.
For bugs and feature requests, please open an issue in the relevant repository. For other inquiries: hi@jony4.vip.