How to process a command

[dmtzs]

I want to create my own commands and send personalized messages and also execute other scripts but I dont understand how to do that, I need to host somewhere something or how it works?

[Badiboy]

https://pytba.readthedocs.io/en/latest/index.html

[dmtzs]

Thank you, also there's a section in which says how to add another user into a group channel?