FHFS is a spin-off of HFS that basically turns it into a small file hosting site, and adds FTP support.
'FHFS' stands for FTP/HTTP File Server. It's more than a template, but less than an entirely new program.
The code is loosely based off of the website FileSplat.com, which is also powered by HFS and FileZilla.
FHFS makes full use of the macro system, and shows how much can be done with them as a scripting language.
Forum, downloads, wiki documentation, etc. can all be found at http://fhfs.filesplat.com/