Tips on how to install Hackintosh on Thinkpad with Coreboot?

Hello, fellow Hackintoshers! Recently I got a ThinkPad T420, and now I want to install Hackintosh on it. It looks neat, and that would make my perfect setup.

I want to install a 3rd generation Core i7 CPU (because I don't want to be limited to High Sierra, and HD3000 iGPU sucks, lol), but in order to make it work, I have to install Coreboot.

I saw that some people have succeeded in installing it; does anyone have any kind of useful information regarding which payload I should pick? I tried searching in old posts in this subreddit, but nothing much interesting came up except for that some people used SeaBIOS or Tianocore.

I would really appreciate any kind of help (instructions, guides, reviews, just anything that could really help me out).

Thanks in advance!

(I really don't know what flair to use; sorry if I messed up.)

submitted by /u/Tertaco
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