macos 15.1 breaks ability to run open source programs. In particular swi-prolog
SWI-Prolog Not Opened. Apple could not verify “SWI-Prolog” is free of malware that may harm your Mac or compromise your privacy.
No options to continue using a development program I've used off and on for years. In fact SWI-Prolog is a commonly used development system in University settings. It's suggested remedy is to Move to Trash.
MacBook Air 13″, macOS 15.1