/usr/bin/TalkSoup is in talksoup.app 1.0alpha-32-g55b4d4e-2build3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/bin/../lib/GNUstep/Applications/TalkSoup.app/TalkSoup
/usr/bin/../lib/GNUstep/Applications/TalkSoup.app/TalkSoup