This is an Unix-like operating system that can be customize by looking/reading the codes. It has two default GUIs (MacOS, Windows).
This GUI was copyrighted by Apple INC for Mac only use, but the OG Mac users knew how to handle this. If you don't know how to handle/use this, here are the instructions:
- Just play around it. (JK, just look at the next step)
- Mess with the mouse and the controls.
- Mess the apps. (That's simple as crap.)
This GUI was copyrighted by Microsoft INC for most of PCs, but PC users knew how to handle this. If you don't know how to handle/use this, same instructions as above.
If you want to modify this OS with more customizations, you may modify as you can, but be cautious of the GUI settings, it may break the system operations.
If you don't want to mess up the bult-in API, you can create your own API to work with the system. WARNING: YOU MUST CHECK YOUR API BEFORE YOU CAN USE IT.