RTLinux is a special supervisor below the kernel that allows you to run "hard-realtime" programs outside of the Linux environment with a lot of restrictions. Ev

RTLinux is a special supervisor below the kernel that allows you to run "hard-realtime" programs outside of the Linux environment with a lot of restrictions. Everything within the Linux environment is soft. As far as I can tell, it's not feasible to run the GUI stack in the more primitive environment.