This is an impressive project, particularly interesting is the Apache module. I did notice it was missing some things I might like, headers in for example.
Header support was, at the time, something I didn't know quite how I wanted done, and was thus left out. I will, at some future time, add in header support.
I would also like header support. Perhaps during the next release (which should start some time in July), I can get around to putting that in. One of my original goals was to get Lily usable on Apache, and I've gotten far distracted from that.