Hi, I'm Chengxu 👋

📍 New York | 🤖 AI Agent Builder | 🦀 Polyglot Systems Hacker | 🌐 Blog

🔭 Currently focused on LLM inference — Rust ports, Apple Silicon, and serving internals

Building AI-powered tools and CLI utilities at the intersection of systems programming and LLMs. Rust for speed, Go for simplicity, Python for AI, TypeScript for everything in between.

Featured Projects

• 🧠 CVQuest - AI-powered interview question generator from your resume
• 🦀 mini-claw-code - Build your own mini coding agent in Rust
• 🤖 one-agent-sdk - One SDK for every agent — embed Claude Code, Codex, and more into your apps (Python & Go ports available)
• 🍎 mlx-lm-rs - Rust port of Apple's mlx-lm via mlx-rs — Qwen3 dense (bf16) inference on Apple Silicon with streaming generation, greedy/temperature sampling, and chat templates
• 🔍 portit - Minimal CLI for inspecting listening TCP ports and killing processes
• 🌐 histctl - Terminal tool to search, browse, and delete browser history
• 💸 splitwise-cli - Command-line interface for Splitwise, written in Rust
• 🐍 rdf4j-python - Python client for Eclipse RDF4J — SPARQL queries and RDF data management
• 🐚 rdf4j-tui - psql-like TUI for managing Eclipse RDF4J servers
• ⚙️ rdf4j-cli - CLI for managing RDF4J repositories
• 🔮 rdf4j-mcp - MCP server for AI-powered exploration of RDF data and SPARQL querying
• 🗄️ lsdb - A key-value database built from scratch in Rust

Tutorials

• 📚 learn-sglang - Interactive tutorial on how SGLang serves LLMs — 12 chapters from architecture to speculative decoding (live demo)
• 🧑‍🏫 teach-me-this-project - Claude Code skill that generates an interactive HTML tutorial for any software project

Open Source Contributions

Merged PRs to projects I use and admire:

• 🦀 Rust tooling — rust-clippy, rust-analyzer, bincode, clap (in review)
• 🌊 Data infrastructure — RisingWave, Apache iceberg-rust, Apache arrow-rs, pgvecto.rs
• 🔗 Knowledge graphs — Eclipse RDF4J
• 🤖 AI / LLM — AIOS, rustformers/llm, Apple mlx-lm (in review)

GitHub Activity

What I'm Into

• AI agents & tooling - Building the infrastructure for LLM-powered development
• Systems programming - Rust and Go for fast, reliable CLI tools
• CLI tools - Compact, fast utilities that solve real problems
• Open source - Turning personal tools into shared utilities

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"Ship it, learn from it, iterate."