I had Qwen build a Qwen-powered app — and sat in the reviewer's chair

Most hackathon posts are about what the AI does. This one is also about who

wrote it. QuotePilot — an autopilot that turns a cross-border B2B inquiry

email into an approved, bilingual (EN/中文) price quote — is powered by Qwen at

runtime. But the app itself was also largely written by Qwen models, dispatched

through a tiny harness while I sat in the reviewer's chair and accepted or

rejected each piece. Total model spend for the whole build: under $1 of the

$40 hackathon credit.

Here's what that actually felt like, where it was magic, and where I had to keep

both hands on the wheel.

• 
  Live demo:
  


• 
  2-min demo video: (demo login:
  
  judge / qwen2026) · Code: https://github.com/mark24680617/quotepilot
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