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Re:Efficient music players remain elusive by yellowapple on Monday June 26, 2017 @10:27AM (#14637045)
"what's the word for this?"

I think the word (or phrase, rather) is "tribal knowledge".

Re:Efficient music players remain elusive by posterboy on Monday June 26, 2017 @01:13PM (#14638458)
tools of the trade

* from the book

secrets of the cult