Can I install Retropie and still have Kano Os and have Retropie like as an app?
Nope - Retropie replaces your OS, and boots your Raspberry Pi as a gamers emulator.
If you’d like to keep using Kano OS, and also use Retropie, your best option is to buy a second micro SD card, and use that for your Retropie image.
Ok thank you Chris I was reading and I bought I would ask so I wouldn’t mess it up thanks :D.
And I was reading on this website https://retropie.org.uk/ and it says
“RetroPie sits on top of a full OS, you can install it on an existing Raspbian, or start with the RetroPie image and add additional software later. It’s up to you.”
As I understand it, the installer will then turn the complete Raspbian OS into the RetroPie OS.
Our recommended course of action is to use a second MicroSD card.