Hey there! Excited to try this out but I think I may be missing something; I can't seem to figure out how to actually make any lines! On my playdate none of the buttons or crank actually seem to do anything.
I discovered this app today and I had the same issue at first. But I found out that if you have the crank out, you can't draw ! Just try to put the crank back and it's work like a charm :)