Interesting background. I've recently been toying with the idea of writing some open-source Mac DriverKit drivers for Mellanox cards, so I'm not forced to pay t

Interesting background. I've recently been toying with the idea of writing some open-source Mac DriverKit drivers for Mellanox cards, so I'm not forced to pay through the nose for ATTO cards (which are just rebranded Mellanox cards.) Sadly all the DriverKit stuff appears to be completely closed source. At least its user-space though, so perhaps a bit less painful than normal kernel driver development...