Mafan Lab 标志

Index 05
About the builder

A public lab for independent development in the AI era

Mafan.

I am Mafan, an engineer and independent developer building AI products and exploring what one person can create.

Now / Currently building

01CodeLevelerA local-first coding agent runtime that inspects, edits, runs, and verifies real repositories.02MuxLayerA local model control layer that routes, converts, fails over, and traces requests for coding agents.03ReviewGateA pre-merge quality gate for AI-assisted code that prioritizes high-risk findings and suppresses low-value review noise.

Longer note

I've been in tech for 10 years. The first half was spent writing code at companies; now I work a day job and build my own products in the evenings and on weekends, treating AI as a daily tool rather than a concept.

This website and my WeChat public account are the same thing: no theory, just a record of how one person actually gets things done in the AI era — the pitfalls encountered while building products, methods for boosting efficiency with AI, balancing a side hustle with a day job, and the failed experiments I've abandoned.

If you're on a similar path, feel free to email me or scan the QR code to follow the public account and chat.

Work Experience

Developer & Product · 2023 — Present

Day job during the day · building my own products in the evenings and on weekends. Full-time development on weekdays, and on nights and weekends I work on my own products (AI efficiency tools), occasionally taking on suitable project collaborations.

Senior Full-Stack Engineer · 2018 — 2023

At a tech company. Responsible for refactoring and performance optimization of core business systems, led the migration to a microservices architecture, and managed a 5-person team to establish an internal component library and engineering standards.

Full-Stack Developer · 2014 — 2018

At a digital agency. Responsible for developing corporate websites and e-commerce platforms. Proficient in front-end tech stacks and LAMP/MEAN architectures, accumulating extensive project delivery experience.

Tech Stack in Use

  • Frontend: React / Next.js · TypeScript · Tailwind CSS
  • Backend: Go · PostgreSQL · Docker
  • Desktop: Tauri · Rust
  • Design: Figma · UI/UX
  • AI & LLM: Claude Code · Codex · Otaro · AI Agents

Subscribe & Contact

If you're also building products, doing side hustles, or doing indie development in the AI era, or if you want to chat about technology and business, feel free to email me. I usually reply within 24 hours.

Contact

Products, AI agents, or the craft of building alone.

my@dengmengmian.com