For my own reference, and anyone else interested in moving primary git branch from master to main. I'm not interested in discussing reasons to do this here, it has been rehashed thousands of times already.

Since I forget how to do this or have problems every six months or so, and these instructions are concise and correct and always work.

What we (try to) do at FamilyID.

I'm going to read and internalize all of this one day. Yes I am.