I took my Raspberry Pi 400 apart to see why some of the keys felt squishy and why there was a rattling sound. Well, I found out! The fix was pretty simple, and not as janky as it sounds in the title.

Music: The Little Broth by Rolemusic (http://rolemusic.sawsquarenoise.com/)
https://freemusicarchive.org/music/Ro...
(CC BY 4.0)