>I want to give some applications the ability to place windows where they want, warp the mouse, grab certain keys globally, snoop input, and so on. This is alr

>I want to give some applications the ability to place windows where they want, warp the mouse, grab certain keys globally, snoop input, and so on. This is already how it works. The plan with GNOME and wayland is to put those in the xdg desktop portal so they can be subject to whatever security policy is appropriate. Really, nothing has changed here in regards to how much mechanism is provided or not. And FYI, X11 can already be sandboxed using those methods in combination with firejail: https://firejail.wordpress.com/documentation-2/x11-guide/ https://firejail.wordpress.com/documentation-2/x11-guide/