Two things regarding the website:

- scrolling is so extremely laggy that the website is almost unusable on Firefox on macOS on an idle MacBook Pro (even if it seems smooth at first, scrolling up and down a few times slows it down significantly)

- I assume the code editor screenshot should actually be some sort of animation, it doesn't seem to work (although right clicking shows options like Pause, Loop...).

Thank you for reporting these. Which version of firefox are you on? I tried reproducing but for me it's not laggy and the animation plays automatically