Built a Telegram bot with

Built a Telegram bot with Mini App for attracting investors to a chain of entertainment centers.

The bot guides investors through projects, calculates ROI in real time, and collects meeting requests — all within Telegram.

Key features: • Mini App with 3 tabs: Parks gallery, ROI calculator, Meeting request form • Real-time ROI calculation based on investment amount and project • Parks catalog with photos, documents, and status (operating / building) • Video tour section for each location • Dual registration: bot flow + Mini App web form • Manager notifications via Telegram groups • Telegram theme sync (light/dark mode)

Stack: Python, aiogram 3, PHP, JavaScript, Telegram Bot API, Mini App API