This is ancient software, written in the days of Mac OS 8. Needless to say, Mac OS X is a powerful, modern UNIX system. If you need to deal with .deb archives files, just install
MacDeb is a simple Mac OS utility to extract files from Debian (.deb) archives, as defined by file format 2.0 or later. MacDeb can prove quite useful both for dual-booting Linux/MacOS users.
The most effective way of using MacDeb is to map it as the owner of files with the .deb suffix in the File Exchange Control Panel. By doing this, any files with the .deb suffix can be opened with MacDeb by double-clicking them in the Finder.
MacDeb is written in standard C using the MacOS APIs in the Metrowerks CodeWarrior IDE. It uses the Appearance and Navigation libraries and is thus unable to run on versions of the MacOS prior to 8.1.
The MacDeb source, including artwork, is free, open-source software distributed under the terms of the Free Software Foundation's GNU General Public License.