There's definitely ways you can do that. Look into programs that use HDMI dummy plugs. It's a little stub that plugs into an HDMI port trick the OS into render

There's definitely ways you can do that. Look into programs that use HDMI dummy plugs. It's a little stub that plugs into an HDMI port trick the OS into rendering a separate screen. Then there are a lot of apps that let you display/interact with that virtual screen, usually through some kind of browser. Acts exactly like any monitor you plug in, regardless of OS. It seems silly to need hardware for this, but it's a very clean/stable way to do this without mucking with config files or using weird hacks.