If it's a wiki, it would be less than courteous to restrictively copyright public contributions (but I'm sure it's been done).
And presumably, paywalling it would reduce contributions.
My impression as to the number one barrier to hardware modifications is soldering. For some reason people can't or won't do it.
So I'd like to introduce the non-sponsor for this comment, "Pincel" the open firmware soldering iron
https://pine64.org/devices/pinecil/
It's running a risc-v chip on open firmware so you'll have cool points with when you whip it out at Richard Stallman's next BBQ.