I am trying to get my Thinkpad X230 to work with Coreboot and the latest version of macOS. I found this entry in the mailing list archives which had already tackled the topic: https://coreboot.coreboot.narkive.com/KVx0CdqD/coreboot-with-an-uefi-payload-to-boot-clover-an-thinkpad-x230-hackintosh

However, I cannot reproduce a working hackintosh environment with either Tianocore or SeaBIOS.

I was hoping that the original authors were still out there and could give me a hint!