HATE does not yet come with an installation script; that is a future enhancement. But don't let that put you off, as installation is pretty straightforward.
The following instructions assume a Unix target system and that you are able to create files in system directories. All those places in the code that you might have to modify are commented with
;# SYSTEM-SPECIFICso searching for these should be the most you ever hate to do.
cp hate /usr/local/bin/ mkdir /usr/local/lib/hate cp hate.tcl /usr/local/lib/hate/to install HATE itself.