Ticking a spice declares it in the program's defscript header, so the program runs the same with tur --enable=script-deps. Imports work without it.
Turmeric Arcade runs programs on an engine that needs JavaScript Promise
Integration (JSPI), which this browser does not have. Chrome and Edge 137
or later have it today; Firefox and Safari have it on the way. You can
still read, edit and share programs here.