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Birr

Built at Meta Global AI Developer Hackathon · Oct 26, 2026 · Remote

Birr — Demo video

Birr is a voice-first Android app that lets blind and low-vision people in Ethiopia count their own cash. Ethiopian birr notes are hard to tell apart by touch, so today a blind person has to trust someone else at every payment. Hold the phone over the notes and ask "How much is this?" or "I paid 500 for 320, is my change right?" in Amharic or English, and Birr says the answer out loud. Demo/live: https://birr-demo.vercel.app GitHub: https://github.com/Sgfhnn/Meta-hackaton Demo video: https://youtu.be/3ZomCMt0GbA Team: Anwar Kaya (solo) How it works: Meta Omnilingual ASR hears the question. Muse Spark Open turns it into an intent and reads every note in the photo twice — once plainly and once against reference sheets of every note. A total is spoken only when both reads agree; otherwise Birr asks for a rescan, because a blind user can't check a wrong number. Code adds the total and the change, fills fixed English or Amharic templates, and Meta MMS-TTS speaks Amharic. Every AI part of the product is a Meta model. Results: on 20 test piles photographed during the hackathon, 18 exact, 0 wrong, 2 rescans. There is a spoken first launch, live framing guidance, TalkBack support, a downloadable APK and a no-install web demo.

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