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Nguyen Duc Anh Tuan.

Work.

Products I have designed and built — from a counter-side POS app to automation tools. Each one covers the problem, how I solved it and the measured results.

  1. POS ordering screen: categories on the left, item grid in the middle, order on the rightIllustration

    Desktop app · Touchscreen

    POS Cafe Hà Nội Phố

    Ordering, invoicing, table splitting and a multilingual menu for a café. 574 automated tests.

    Kotlin · Compose Desktop · SQL

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  2. Booking page: shop photo on the left, date, time and party-size form on the rightIllustration

    Web · Cloud

    Online table booking

    Guests book 24/7 even when the POS is off; bookings sync to the counter every 30 seconds. 3 languages.

    React · TypeScript · Cloudflare Workers · D1 · Turnstile

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  3. Video editor: preview with Japanese subtitles, processing steps and a timelineIllustration

    Tool · Automation

    Xưởng Tâm Sự (video automation)

    Automatically edits Japanese YouTube videos: kanji subtitles synced to voice, music and motion. A 44-second video renders in 15 seconds.

    Python · FastAPI · FFmpeg · Whisper · BudouX

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