NVIDIA have just release driver version 590.48.01, and details are here:  https://www.nvidia.com/en-us/drivers/details/259042/

This compiles/loads/runs successfully with Kernel 6.19 (tested with 6.19-RC1):

…………………….
CC [M] nvidia.mod.o
CC [M] .module-common.o
LD [M] nvidia.ko
CC [M] nvidia-uvm.mod.o
LD [M] nvidia-uvm.ko
CC [M] nvidia-modeset.mod.o
LD [M] nvidia-modeset.ko
CC [M] nvidia-drm.mod.o
LD [M] nvidia-drm.ko
CC [M] nvidia-peermem.mod.o
LD [M] nvidia-peermem.ko
make[2]: Leaving directory ‘/home/rgadsdon/NVIDIA-Linux-x86_64-590.48.01/kernel’
make[1]: Leaving directory ‘/usr/src/linux-6.19-rc1’

As with the previous kernel-open hack, this only supports the newer RTX-type cards, and hopefully there will be an equivalent update for the 580.xx drivers soon, for GTX support..

Robert Gadsdon.   December 19th 2025..