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Developer Builds Bilingual Profit Tracker for Father's Cyber Café in India

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A developer built a web app called Khata to help his father, who runs a cyber café in India, track real-time profit per transaction across services like Aadhaar updates, bill payments, and printing. The core problem was that while daily cash intake was easy to count, calculating actual profit required mentally subtracting a different portal cost for every single service — a task impractical at the end of a busy day. The app lets users define services once with default charges and costs, log transactions in two taps, and view profit summaries across daily, weekly, and monthly ranges. Built with React, Node.js, TypeScript, and PostgreSQL via Supabase, profit is computed as a database-generated column to ensure consistency across all views. The interface supports English, Hindi, and Bengali, reflecting the developer's deliberate choice to prioritize the languages actual small-business users in India are most comfortable with.

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Developer Builds Bilingual Profit Tracker for Father's Cyber Café in India · ShortSingh