Comment # 2 on bug 1228145 from Stefan Dirsch

Of course you can build it yourself by running their installer.

  https://www.nvidia.com/en-us/drivers/unix/

I think it has also an option to only build and install the kernel modules.

$ sh ./NVIDIA-Linux-x86_64-550.100.run -A

[...]
  -K, --kernel-modules-only
      Install the kernel modules only, and do not uninstall the existing
driver.  This is intended to be used to install kernel modules for additional
kernels (in cases where you might boot between several different kernels).  To
use this option, you must already have a driver installed, and the version of
the installed driver must match the version of these kernel modules.
[...]

I don't plan to add packages for this flavor. I think you're the first who asks
for it and we build nvidia KMPs since almost 2 decades now.