I screwed up. Updated to 14.2.1 before updating OCLP. Help?

I have a 2015 MacBook Retina. Was running Sonoma just fine. I mistakenly said "Yea, sure, update to the latest update (14.2.1)". Now It boots, fans spinning like crazy, sometimes I'll get a login but the mouse is janky and beachballing. Other times I'll only get as far as 1/3rd of the progress bar at boot time. It won't seem to go into Safe Mode either. Any way of getting this sorted?

submitted by /u/mike-foley
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