We are building a multi-seller marketplace as a Telegram Mini App. Full project details shared after NDA signing. TECH STACK — OUR PREFERENCE (OPEN TO DISCUSSION): Next.js 15 + TypeScript (Telegram WebApp... (Budget: $250 - $750 USD, Jobs: API Development, API Integration, Docker, FastAPI, Next.js, Node.js, Payment Gateway Integration, PostgreSQL, Redis, Typescript)