How do I create a Catalina fresh installer

Trying to create a Catalina fresh installer using opencore. Any ideas on how to do this. Tried using clover and created a usb installer, it reports that it will not install.

I have read the opencore documents and can not figure out how to create the configuration file without having the machine I want to hackintosh booted in to a OS.

Please help.

submitted by /u/millzanz
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