In one of the more recent Jeff and Casey Show episodes, Casey was talking about how he'd set himself up for writing webpages in C such that they could then be compiled into HTML/CSS(/JS).
This sounds like a very useful tool. As far as I'm aware, he hasn't made any code for this public.
Casey, would you consider making this available? I'm sure many people would be interested, whether it came out as a Handmade Hero bonus or as a separate paid product.