Options for using LilyPond in an Android app

[Barton Stanley]

Hello,
I've been asked by a friend to create a mobile app that displays sheet music in 
an alternative notation.  While it would be a blast to figure out how to do the 
engraving from scratch myself, I'd like to show progress quickly so I am 
looking at what my options are.  LilyPond appears to be the most comprehensive 
system but it does not appear to be available for iOS or Android.
What are my options for using LilyPond in an Android app?
BTW, I am a highly skilled developer with over 30 years of experience.  If 
using LilyPond in Android will require some highly technical work, I am fully 
capable to take on the challenge.
Barton