FYI, in macOS v15 Sequoia +, Gatekeeper/quarantine/signing has changed. Right click to open won't allow the bypass. The quickest way, without disabling runtime protection:
Hmm. That worked for me, but when I run the app, everything in it is reeeealy tiny. Like they're trying to work around Retina display scaling but got it wrong somehow.
Have you tried changing the scale through Settings > Plugin > Scale ?