• Google Sheet docs > JSON
• JSON > Schdule on telegram bot
• Some events shown only for specific group
• Register bot subs to db (SQLite?)
• Register sub group to db
• Show timetable only for current date
• Group events by order
• Send pics before timetable

Telegram bot API docs

https://core.telegram.org/bots/api

Google Sheets API

https://developers.google.com/sheets/api

Google console

https://console.cloud.google.com/