Should the caffeine web interface be integrated with liquid at all??
Are there other such parts of the website that should also be integrated?
@klange might be able to comment on this better. I would think that integrating Caffeine is a good idea, personally.
Possibly. Look at the existing site to figure out how it all works.
Are the statistics for acoustics also accessible. They might be nice to list on profiles.
Acoustics doesn't really store per-user "statistics", it just keeps track of everything you ever played. We provide some API hooks to get this information...