Mainsail or kiauh?

I have been using mainsail on my older printers and recently bought the hi. I would prefer all my printers to have the same interface if possible. I can ssh in just fine , but can’t get it to recognize “git” or “sudo” commands. It says they are missing. Is there a step i am missing? or is this currently not possible? If there is a guide to follow could someone please direct me to it? Thank you