ichuan

ichuan

Full-stack / AI Product Engineer

I build production web, desktop, mobile, AI, and infrastructure projects end to end, with a bias toward usable tools, self-hosted systems, and fast product iteration.

Current Focus

AI product engineering

Browser-based coding agents, enterprise knowledge systems, workflow automation, and practical LLM application delivery.

Local + cloud tools

Self-hosted gateways, native desktop utilities, PWAs, deployment pipelines, and privacy-conscious product defaults.

End-to-end prototypes

From rough idea to usable product: frontend, backend, device integration, cloud deployment, and operational notes.

Systems background

Earlier work in wallets, exchanges, scanners, Web3 contracts, and security-oriented business systems.

Recent Projects

Agent Pad

Self-hosted gateway for controlling desktop AI coding CLIs from a browser, with gateway, web UI, daemon, workspace inspection, sessions, profiles, and usage controls.

FastifyReactSQLiteWebSocketGo daemon

Cloud Agent

Web-based AI software builder that turns a concept into a deployable app through planning, coding, sandbox orchestration, file inspection, and staged uploads.

Next.jsAI AgentSandboxDeployment

VIP - Voice Input Pro

Minimal cross-platform voice input tool for Windows and macOS: hold a hotkey to record, release to transcribe, then paste text into the active cursor position.

RustWindowsmacOSASRHotkey

Terra Drive

Autonomous mower system with cloud task management, path planning, ROS 2 Jazzy + Nav2 on Raspberry Pi, Arduino PWM arbitration, RTK, LiDAR, and safety supervision.

ROS 2Nav2Raspberry PiArduinoMQTT

Notes

Modern note-taking web app with rich text editing, folders, search, history, sharing, authentication, AI chat over notes, vector search, and hardened production settings.

ReactFastAPITiptapSQLite FTS5LanceDB

Motion Games

Browser-based motion interaction game collection using the camera as input, with no external device required and bilingual Chinese/English support.

WebCameraMotion inputGames

Translator

Minimal English-Chinese translation PWA with automatic language detection, grammar correction, installable app behavior, and server-side API key protection.

ReactViteHonoPWALLM

MailMail

Privacy-focused native Windows 11 email client built with Tauri v2, Rust IMAP logic, React UI, and offline-first local rendering.

Tauri v2RustReactIMAPWindows

Experience Highlights

AI software platforms

Worked on browser-based software creation, deployment, enterprise knowledge bases, and digital-worker automation.

Desktop + browser products

Built native utilities, PWAs, browser tools, and self-hosted gateways that connect local machines with cloud services.

Robotics prototype

Built a cloud-to-device autonomous mower stack with path planning, ROS 2, Nav2, RTK, LiDAR, and safety control.

Business systems

Earlier work covers exchanges, wallet services, vulnerability scanners, admin systems, APIs, and deployment operations.

Focus Areas

AI Products

Agent toolsKnowledge basesWorkflow automationVoice input

Applications

ReactNext.jsFastAPITauriReact Native

Infrastructure

DockerCloudflareVercelSQLiteSelf-hosting

Systems

ROS 2Web3WalletsSecurity toolsTrading