The author mentioned (Galashin) has some fun software to play with these combinatorial structure.
I went to a talk of his that was "interactive" in that to follow along you could play with an interactive widget, but I can't seem to find it right now. This one about plabic tilings (objects mentioned in the article) is fun too: https://www.math.ucla.edu/~galashin/plabic.html
I went to a talk of his that was "interactive" in that to follow along you could play with an interactive widget, but I can't seem to find it right now. This one about plabic tilings (objects mentioned in the article) is fun too: https://www.math.ucla.edu/~galashin/plabic.html