[OpenBIOS] Installing OpenBIOS

Hi. I've watched a television broadcast where a hacker or security expert suspected that the BIOS of ThinkPads has a backdoor and therefore he installed OpenBIOS.

I read https://www.openfirmware.info/OpenBIOS.

1. Please tell me whether a user without  knowledge in programming or Linux command lines in Terminal is able to install OpenBIOS.

2. Would you provide step by step instructions (especially for my case) how to install OpenBIOS on my system?

Regards,