@matt9 - Thank you for taking the time to share your hack. I am deeply grateful for your generosity. Confirmed to be working on a M2 Mac Studio, Ventura 13.6.4 with a Roland Edirol FA-101 interface. It took about 5 reboots and various attempts in the terminal to fix the file permissions and manual load using kmutil AND allowing the FW .kext kernel permissions in System Settings > Privacy & Security. I experienced a few kernel panics during the 5 reboots which were a worry, but once every was signed and loaded properly, my system is stable with no more random crashes. AND my firewire interface is running very happily with Logic Pro, which is a godsend for my work. Thank you thank you!!