Engineer focused on OpenHarmony ArkUI and UI infrastructure.

Currently maintaining the ArkUI WaterFlow component, with a strong interest in layout systems, rendering performance, and long-term component engineering.

Before moving deeper into UI infrastructure, I spent years building backend systems and automation tools. That background still shapes how I think about reliability, maintainability, and practical engineering.

• Maintaining and improving OpenHarmony ArkUI WaterFlow
• UI layout systems and component infrastructure
• Performance optimization and stability under complex scenarios
• API design and long-term maintainability

• Backend engineering with Java, Go, Kotlin, PHP, and JavaScript
• Scalable services and automation-oriented tooling
• Product-minded engineering with an emphasis on reliability

• ArkUI: maintaining core UI capabilities with a focus on WaterFlow and component infrastructure
• Atom Archetype – A DDD-style Java project template for scalable, maintainable systems
• Telegram Hub – RSS-to-Telegram automation powered by Cloudflare Workers

Long-distance running has been part of my life for years. It influences how I build software: consistency, endurance, and steady iteration.

Check out my running logs 👉 running.hanfeng.net