Vjaceslavs Cizevskis@CarouselLabs

Pocketful is a self-contained wallet application built through a four-seat BAND software factory. People send money by handle, request payments, split bills to the last cent and reserve funds. Four independently buildable stage folders implement the challenge's API, browser recovery, historical corrections and atomic batch changes. Codex owns the interface and independent runtime checks. Tony implements and repairs the backend through Hermes. Saturn analyses requirements and plans work. DeepResearch reviews sources and evidence. BAND records their full-task handoffs; the native dispatcher retains execution authority. These development agents are not dependencies of the shipped application. Final source 4573d5b7 passes fresh-clone isolated published checks in every stage: 147, 182, 188 and 193 inherited checks respectively. Ten independent runtime groups and sixteen custom adversarial groups pass against matching Docker images and served assets. A separate source review verifies the retained bundle, ordinary Git history and bounded local checks. Custom testing caught a defect after the published suite passed: the same retry key treated number 1 and an ordinary object as identical, returning a false replay. We preserved the failure, requested a scoped author repair and reran the unchanged negative probe. The repaired service returns 409 and leaves its entire exported state unchanged. The film shows the actual recorded BAND handoff and completed application results, held for reading. The final factory run elapsed about 2 hours 23 minutes; model spend and human time were not measured. This is a synthetic challenge wallet, not a bank integration. Public tests and custom probes do not guarantee hidden-test results or production financial readiness.

🌎 Online Hackathon | 💻 Online Build: Sept 26 - Oct 5, 2026 A virtual, global hackathon. Build from anywhere in the world. Dark Factory is the official hackathon of WeAreDevelopers World Congress North America, presented by BAND, but you don't need to be in San Jose to take part. For one week, you build a software factory in BAND Desktop: a band of coding agents that plans work, implements it and checks its own results. 🎟️ Bonus for sign-ups: you are eligible for a free ticket to WeAreDevelopers World Congress North America in San Jose (Sep 23–25). If you do go, stop by the BAND booth: a surprise is waiting for you.