What would be nice is if the OS wasn't tied into the bios in CC
Like you can't really customize its behavior that much because the whole boot system and whatnot is done from a non-modifiable rom filesystem rather than copying it to the machine filesystem or at least accepting overrides from the machine's filesystem
You can override stuff by editing the shell.path variable and adding something like "/bin" to the start of it so it's "/bin;/rom/programs;/rom/programs/computer" and then if you try to run something it'll run the one in /bin if it exists first, but the bios loads explicitly /rom/programs/shell on boot so you can't run a custom shell
And that shell prioritizes disk startup so you can't really lock people out
Could do a custom bios that acts more like hardware than software, then tie the software in over the top properly so you can fully customize your computer even if you don't have access to write to the rom system