hmm 6 out of 10, but like... a high 6. (do you want non-meme actual feedback?)

let me guess - not high contrast enough - no scrub controls

ooh yes (consider a border for contrast too) but also no subtitle/caption button, consider hiding buttons for unreleased features, consider a PiP button, and move the progress off the edge if you can (like how twitter/youtube do it) but like... pretty cool 👀

ah yeah we'll have captions. PiP is a bit out of scope. and I'll move the progress up once scrubbing is implemented (otherwise people will try and click on it and be disappointed)

I wonder if the PiP could already be available with Firefox, Opera & Vivaldi since all three embark a quite good PiP player that can work with pretty much every video player. Would love to test :p

you have to choose to implement - developer.mozilla.org/en-US/docs/W... - but it's not a tricky API, but like... in a timeline what do you do? Do you pause when scrolling, etc. etc.