Language practice app, a sample build (a practice project, not client work). A mobile app for speaking practice: learners hold short role-play conversations with an AI tutor, get feedback on pronunciation and keep a daily streak. Lesson authors write the scenarios in a web admin. React Native, Expo, Hono, Postgres, speech-to-text. Case study: https://infinisys.ai/work/language-practice-app
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AI workspace platform, a sample build (a practice project, not client work). A workspace product sold to many companies: each customer company gets its own document store and AI assistants that only read what the asking user may read. Admins set usage limits, and billing follows usage. Next.js, Postgres, pgvector, Stripe Billing. Case study: https://infinisys.ai/work/multi-tenant-ai-workspace
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Invoice intake agent, a sample build (a practice project, not client work). A small web app reads invoice PDFs from a shared inbox, extracts the fields, checks them against rules and puts each invoice in a queue where a person approves or fixes it. Astro, React, TypeScript, Cloudflare Workers, D1. Case study: https://infinisys.ai/work/invoice-intake-agent
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Nibblio, our own product: a nutrition app that reads your lab report, builds a weekly meal plan around your biomarkers and learns from what you eat. iOS and Android, English and Serbian. React Native, Expo, Python, FastAPI. Case study: https://infinisys.ai/work/nibblio
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