What the bot can do:

• Communication in 3 (English, Ukrainian, Russian) languages.
• A reminder of your schedule every day.
• Send your schedule with the file to a telegram so that the bot can send you the schedule.
• Simple navigation.
• Update last post /today.

The code has problems:

• Repeat the code.
• Poor database implementation.
• Poor callback button implementation.
• Few comments.

All this in a telegram: https://t.me/one_session_bot