I'm not talking about generic hardware questions (e.g. how Linux names a disk device), i'm talking about the handling of very specific hardware details and interactions¹.

The main problem I see is that the level of knowledge required to answer these questions is the same of somebody programming an LKM, or directly the kernel, to control said hardware details and interactions.

I'm not sure if this community accepts such questions as on topic.

¹ To contextualise, I'm willing to ask a question about MMIO remapping for the devices behind a node's local PCIe interface on a NUMA system. Particularly the interactions with Source Address Decoders, the SRAT ACPI table and Linux behaviour for cross-node IO requests.