Are you able to debug a fresh build? When I attempt to do so (build & run from Xcode), the system throws an alert “App containing System Extension to be activated must be in /Applications folder” when attempting to activate the extension. Obviously that would be expected in a production build, but this happens in debug when building with development provisioning on Ventura; the same does not occur on Monterey, where the development build will load and activate from its build location.
My recourse in the interim has been to drag the build product into /Applications, launch manually, and then attach the debugger.
Despite this, even after allowing the extension in the “Privacy & Security” panel of System Settings, and ensuring that both entries are enabled under Full Disk Access (yes, there are two, identically named; one with the app icon, and one with a lego brick extension icon), the call to es_new_client()
still fails.
Perhaps I have something wrong with the debug workflow on my Ventura machine, but even so, the current production version of the app (built months ago) does not activate under Ventura either.