Does macOS count? There are large chunks of the system that are impenetrable in real-world use. For example, in order to install the `yabai` window manager, here's what you need to do on your system:
If part of your program's installation process is "reboot into recovery mode", I feel like you're working with an OS that isn't quite as malleable as we sometimes are led to believe it is. :D
(btw I use `yabai` and it is totally worth doing all these things...I wouldn't set it to auto-update, and I review every release carefully, but so far so good. It's a great WM for macOS!)
- https://github.com/koekeishiya/yabai/wiki/Installing-yabai-(... - https://github.com/koekeishiya/yabai/wiki/Disabling-System-I...
If part of your program's installation process is "reboot into recovery mode", I feel like you're working with an OS that isn't quite as malleable as we sometimes are led to believe it is. :D
(btw I use `yabai` and it is totally worth doing all these things...I wouldn't set it to auto-update, and I review every release carefully, but so far so good. It's a great WM for macOS!)