Try using fst?

[killercup]

Might be interesting to see whether using fst can be faster than phf and/or yield a smaller binary size. You'll probably have to build with the (compressed) contents first and then build the map using the sorted list of file paths and use (offset,len) tuples as values. Loading the map should be something like Map::from_static_slice(include_bytes!(concat!(env!("OUT_DIR"), "/index.fst"))). I've done something like this in static-filez.