The original PHost documentation was written by Andrew Sterian using AOLpress and Netscape Composer. The PHost 4.0 documentation was thrown together by Stefan Reuther, borrowing a lot from the original one, using XEmacs and LotusXSL resp. xsltproc. The PHost website is generated by a Perl script named php.pl.
Many thanks to the people who took the time to point out mistakes and provided suggestions for improvement.