Modern macOS Gatekeeper settings will block unsigned or modified .dmg files to protect the system kernel. Better Alternatives for Audio Engineers
If you want, tell me the exact Smaart version or what “610” and “XDmG” refer to (model/version or a link/source), and I’ll produce a targeted step-by-step upgrade/patch plan and validation checklist. smaart 610 os xdmg patched