The first light over the workshop came pale and patient, pouring through the high windows and settling on the scattered tools, glossy motherboards, and a half-assembled MacBook with its aluminum shell open like a sleeping animal. Rowan brewed coffee, the steam fogging the glasses perched on the bridge of their nose, and studied the laptop as if the machine might speak back. It did not — not in words — but it hummed with potential: an old Intel Mac whose official life had ended when Ventura arrived and Apple turned the page to newer silicon.

and use it to "Create macOS Installer." Select macOS Ventura from the list. Build and Install OpenCore: