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Re:Monads for functional programming (1995) [pdf] by nickpsecurity on Monday May 07, 2018 @01:00AM (#17010493)
Based on CMCDragonkai's comment, I'm guessing the one you're looking for is below. I thank both of you since it was an interesting concept and paper. Hopefully, the one you were looking for.

http://categoricaldata.net/operadics/OperadicSoS.pdf

Re:Monads for functional programming (1995) [pdf] by CMCDragonkai on Sunday May 13, 2018 @12:42AM (#17057388)
I tried to understand operads before. But I got sidetracked by graphical linear algebra: https://graphicallinearalgebra.net/