I'm WangJack (@wangjacks), a Data Science freshman from China.

I've been learning by building since elementary school — starting with simple websites and gradually exploring programming, Linux, web development, and open source.

I still consider myself a beginner, but I enjoy turning ideas into working software and continuously improving the way I build.

• Blog233 — A technical blog documenting website building and self-hosting

• Hadoop WordCount experiment deployed on Alibaba Cloud ECS
• Built a ClassIsland timetable template adopted by ~1/4 of the classes in my grade
• Self-hosted Home Assistant on Raspberry Pi

• Java SE
• Modern Web Development (Next.js / TypeScript)
• Git & GitHub Workflow
• Software Engineering Practices

• 🌐 Blog: https://blog.wj0.top
• 📝 Blog233: https://www.blog233.com
• 🎯 Also active on Luogu, AtCoder, Codeforces and LeetCode

I built my first website in middle school, and I'm still maintaining it today.

A special thanks to all the friends who've supported and inspired me over the years.

• Blog233 Anniversary Page