Apple - Developer not identified error when logging in Oracle Instantclient on Catalina

This should do it!

System Preferences -> Security & Privacy -> Developer Tools

White-listing one-by-one

While launching your non-verified app keep your System Preferences -> Security & Privacy -> General open. You can whitelist executables and libraries along the way. They will pop up in the general tab.

A signing tool

https://github.com/mitchellh/gon