I played with Sonoma 14.0 and OCLP 1.0.0 on an ancient spare MacPro 3.1 with RX580 and SSD. Amazingly, it installed and can boot OK with a few well-known Wi-Fi and BT problems (which are not a worry b/c Ethernet is working fine). The only annoyance is that shutdown reboots a minute or so later. I've tried the sudo pmset -a hibernate 0 terminal command recommended as the temporary fix but it seems not to work. Are there any other possible fixes besides a hard power button off shutdown?