I’m setting up a Telegram bot whose sole purpose is to act as a bridge between my chat channel and three external services: Google Sheets, a CRM system, and a payment gateway. The workflow is straightforward but must be rock-solid. • Google Sheets – the bot should fetch specific rows on demand and update existing ones when users submit new data in chat. • CRM – every time a user triggers a defined command, the bot needs to create or update a contact/deal record, keeping field mapping clean and configurable. • Payment gateway – users must be able to complete a purchase or subscription entirely inside Telegram; after a successful transaction the bot will log the details in both Sheets and the CRM. I’m comfortable with Python, Node.js, or any other stack that leverages the Telegram Bot API as long as the code is well-documented and deploy-ready (Docker is a plus). Please factor in secure key storage, error handling, and a short README so I can redeploy without surprises. If you can demo a working prototype that hits each integration endpoint, that’s my green light for final hand-off.