I don’t think that’s the case, because otherwise how did they leak this key that the backend uses, that presumably stayed in the backend, by reverse-engineering the rabbit android application?
I think the devices all just have hardcoded keys to the APIs themselves.
The intro to Space Oddity is Fmaj7 (easiest best chord) to Em (very easy chord) and with some C and Am. Tab here: https://www.songsterr.com/a/wsa/david-bowie-space-oddity-tab-s365
Strumming pattern is tricky, but it’s my favourite thing to casually strum if I’m sad.