Only the Catalina generated gs3-server.app had difficulty running on Mac Monterey in the GS3 binary generated so far, as gli.app and I think gems.app ran (as expected) on Monterey. Having regenerated a gs3-server.app on Monterey for Monterey, I move the Catalaina gs3-server.app out of the way, but still available (not just in svn version history) should we need it for separate Mac releases.