nix/hosts/laptop/modules/nvidia.nix

{ ... }:
{
    # Configure dual-gpu AMD+Nvidia
    hardware.graphics.enable = true;
    services.xserver.videoDrivers = ["amdgpu"];
    # services.xserver.videoDrivers = ["nvidia" "amdgpu"];
    # hardware.nvidia = {
    #     modesetting.enable = true;

    #     # Experimental nvidia power management
    #     powerManagement.enable = false;

    #     # Experimentally turn off Nvidia GPU when not in use
    #     powerManagement.finegrained = true;

    #     open = false; # Open source module is still very much beta

    #     nvidiaSettings = true;

    #     # Configure dual-gpu offloading
    #     prime = {
    #         amdgpuBusId = "PCI:4:0:0";
    #         nvidiaBusId = "PCI:1:0:0";

    #         offload = {
    #             enable = true;
    #             enableOffloadCmd = true;
    #         };
    #     };
    # };
}