reverse mirroring

• I have checked that a similar feature request does not already exist.

Is your feature request related to a problem? Please describe.
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]

Describe the solution you'd like
I would like to be able to add my tablet or android device as a second screen for my computer, it's pretty much the opposity of what scrcpy already does, create a virtual additional screen of my linux desktop on the android device, that way I can place any additional content I can't see in my laptop on the android device, improving productivity, performance and what not.

Describe alternatives you've considered
Deskreen & Weylus, but they both only have the wireless options through QR code scanning. However the usb c connection feature you already implemented on scrcpy 3.0 I think and above is Marvelous, I would like that to be possible for this reverse mirroring feature request.

Additional context
I know there's several limitations in this feature including default hardware limitations of several android devices including the usb data flux some have limiting only to deliver and not receive transmitions. I'm not that well versed on this technical topics, but I didn't wanted to leave the opportunity to request this feature since is an option. I love scrcpy just as is, it's helpful in it's way but if this feature is implemented I consider it would be a real game-changer for lots of people.

Congrats & Regards.

The issue does not name any files, tests, or entry points. Start by reviewing scrcpy's existing Android-to-desktop mirroring architecture and the USB transport limitations described in the request; done would require a defined, implemented reverse-display design with validation on supported Linux and Android devices.