maybe i am too easily impressed. i took this as showing off (yet another) svelte possibility and a demonstration of how elegantly it can be used. i'm new at svelte and found this eye-opening.

btw demos seem to work perfectly on safari 15.1, ff94.0.1 and brave 1.32.106 on macos monterey and on my ancient Note 8 running the android brave 1.32.106