Mind throwing me the name of or link to the program you used to unpack the .app? I'd like to do that myself, and remember stumbling on a program that did that, but can't recall the name.
% pkgutil --expand foo-1.0.pkg foo_pkg
% cd foo_pkg
% ls -Al
total 352
-rw-r--r-- 1 magervalp staff 44491 16 Mar 12:19 Bom
-rw-r--r-- 1 magervalp staff 566 9 Apr 13:51 PackageInfo
-rw-r--r--@ 1 magervalp staff 67794 16 Mar 12:19 Payload
drwxr-xr-x 4 magervalp staff 128 9 Apr 13:51 Scripts
% mv Payload Payload.cpio.gz
% open Payload.cpio.gzhttps://stackoverflow.com/questions/11298855/how-to-unpack-a...