About

I'm China Wang, a solo developer building small web tools that solve specific, unglamorous problems.

Right now that means MingList — a classifieds site where the posting form has no email field. Every listing gets its own disposable two-way relay address, so buyers and sellers can talk without ever exposing their real inboxes. Live in 24 cities across five countries.

This blog is the build log: architecture decisions, email infrastructure edge cases, and what it takes to run a real product on Cloudflare Workers, D1 and Hono.

Product: minglist.top​