The goal wasn’t to dive deep into technical internals this time, but rather to share some perspective on what it actually takes to master an entire virtualization stack — especially after years of working only on the top layer (orchestration, backup, etc.). We’ve seen firsthand how much more complex things get the deeper you go.

That said, I totally get the desire for more technical content — and we’ve published more in-depth pieces before. For example, here’s a detailed post on Xen’s grant table mechanism and memory sharing, if that’s more your kind of read: https://xcp-ng.org/blog/2022/07/27/grant-table-in-xen/

Appreciate the feedback — and happy to go deeper on specific areas if there’s interest!