This page describes how to prepare the Couchapp Installer for the Mac OS X operating system. (based on bazaar page)
Every package should be built the same way (issue the command in the root of the source trees):
python setup.py bdist_mpkg
This will generate a .mpkg file in the dist subdirectory of the source tree. This file is actually a directory that contains some metadata, and further package files (.pkg). You should copy those packages out of the .mpkg structure (you can either use the Terminal for that, or just control-click the .mpkg file in Finder, and select Show Package Contents). The package files are located in the Contents/Packages subdirectory.
Distribution
Add each packages extracted above to the project.
Location for *-script packages is /usr/bin and for *-purelib /Library/Python/2.6/site-packages .