This reminds me of a tool my friends made calle Escher Sketch, which allows you to create tiles https://eschersket.ch/ ... I've lost days playing with the program (and generating some pretty intricate art).
"let me turn of symmetry to show you the tools...blah blah blah"
<looks for the 2x to get past boring boring boring>
"let me turn back on symmetry which is the point of the program..."
holy crap that's cool. just at the point i was ready to bail on the video.