GNU/Linux Elementary OS 6 Installing Dkms without Internet Guide
Hi! The linked Tutorial shows you Step-by-Step How to Install DKMS without Internet Connection in Elementary OS 6.x GNU/Linux Desktop.
Most noteworthy: to achieve this Setup you simply need any Online Computer with a Browser and a USB Stick to Copy the downloaded Packages.
But if you dispose of an Android Mobile Phone with Internet Acces, then an Easier Solution should be of using it! See: Internet Connection USB Tethering Guide.
And the Dynamic Kernel Module Support for Elementary OS 6 is a Program/Framework that enables generating Linux Kernel Modules whose Sources generally reside Outside the Kernel Source Tree.
GNU/Linux Elementary OS 6 DKMS without Internet Access Setup