This is a silly little project that make one of the many "developers" said by Steve Ballmer play every time you hover the word "developer" (or "developers") on a webpage. This pays homage to the now defunct DEVELOPERS extension by Todd Andersson. Now with one extra "developers"!
The core of it is using manifest version 3 and an offscreen document to play the sound effect, it's neat enough I guess.
Now also with a Firefox edition that uses the extended background scripts capabilities firefox still supports for manifest version 3, rather than supporting web workers.