Huh.  Branching off from that page is evidently an auxlang
called Earth Language:

The language also has a signed component:

I've just come across the sign, so I have nothing to report, but I
thought I'd share.  I'll definitely have to look into it.

"A male love inevivi i'ala'i oku i ue pokulu'ume o heki a."
"No eternal reward will forgive us now for wasting the dawn."

-Jim Morrison