This is failing for me on Ventura 13.4.1 I've posted https://stackoverflow.com/questions/76993541/cgeventtapcreate-returns-null-in-macos-ventura-13-4-1 I've also filed an issue https://github.com/0x8BADFOOD/osx-cmd-launcher/issues/1 What's most interesting is that a prior build of my app IS working. But any attempt to rebuild it and the rebuild will fail. Please could an Apple engineer look into this. It's a clean testcase, and this failure is blocking an assistive technology I'm creating which is critical for myself and my users.