Custom Blocks, Again – #16 by bloct – Share your Projects – Snap! Forum https://forum.snap.berkeley.edu/t/custom-blocks-again/7904/16
To run blocks you need JS. Not all of them use JS though. Lots of credits to @fsul for the cloud vars.
16, 2021, 9:54pm 16 I tracked down a snippet of Jen’s warning about the Uni Gottingen