It’s late and I am tired but I wanted to see if anyone could enlighten me as to how ewaste i.e. gold bearing boards get processed. Are they shredded? Then go threw a chemical process to remove the gold? Has anyone ever done this from start to finish with all the chemicals?

I've been wondering with the right equipment and Skill (which I don't have) If this could be done at home or perhaps at a work lab?

I know the chemicals and procedures can be dangerous, but are there any Chemist types that have done this from start to end?

Thanks.