Getting screen sharing with rpi with Lakka on a laptop?

Question

linux

Good afternoon, year and month comrades, I will try to insinuatingly and in detail describe the essence of the problem. There is an rpi (3B +) board with lakka installed (via pinn), there was a desire, in addition to the TV, to connect it to the laptop screen (from third-party devices, only hdmi cable :)). So, after experimenting and going through the forums, as I understood, the idea is unrealizable, and I started looking towards ssh and vnc, starting to act, I found that Lakka is an uneditable system and you can’t put vnc on it :( But I didn’t despair and started to covet to one ssh and its x11 forwarding, but there is the same blank wall, since setting up the sshd_config file also fails due to the non-editable system.And at this stage I'm stuck, I also didn't find anything in the documentation, but for now I'm trying dig in the direction of what, as far as I know,
Just in case, I’ll define the task more precisely: using a laptop as a means of rpi-lakka video output, the implementation is suitable both through the use of a monitor (still a laptop) and inside the OS (win7, archlinux stock with graph add-ons). Thank you for your attention!