Telegram bot for posting courses

Telegram bot where you can post your educational courses. For the regular user, the bot simply provides information for review and a link to purchase the course. For those who have paid for the course, they resend /start through a specific link and access to the lessons is opened. You can post any number of lessons, as well as schedule the release of lessons at a specific time. There is a function to prohibit copying/forwarding messages from the bot, sending feedback on the course(s), and viewing feedback. The bot can be expanded and improved in the future.