It was a visible mending tutorial that showed a japanese sewing technique for giving a rag with holes in it a new life, I think by folding it and adding a lot of stitches to make it sturdier?
It doesn't have to be the exact video I'm thinking of, I'm mostly looking for the name of that technique. Does that ring a bell for anybody?
EDIT: Actually I found the video again after trying more and more keywords. It's this in case anyone is curious:
