I'm attempting to build ZFS on Linux by following the instructions at https://wiki.debian.org/ZFS
. As expected, they work fine on a test VM running on my 64-bit amd64 laptop. On the Pi, I'm stuck at the step where I need to get the kernel headers for the currently running kernel. I'm attempting to use the official 64-bit kernel provided as part of Raspbian - which is currently 4.19.75-v8+ #1270. The corresponding kernel header package, raspberrypi-kernel-headers, does not contain the 64-bit headers. I understand I therefore need to clone the kernel source from github. How can I select the exact kernel source, which I believe includes the headers I need, from the github repo?