Simulink® Desktop Real-Time™ on Linux?

Why isn't Simulink® Desktop Real-Time™ supported on Linux but it is on Mac systems?

[Walter Roberson]

>> why
To please some not very terrified hamster.

[Ben]

I am wondering this too; what's the difference? They're both *nix!

[Walter Roberson]

There is not one unified linux real time mechanism . Some distribution have real time features but not many .