SQL Permissions Extractor documentation?

Is there any documentation for how to use SQL Permissions Extractor?
I used to use the very old tool SQLPermissions and it worked perfectly.
I’m finding that with the newer versions of SQL SQLPermissions doesn’t script everything accurately for me.
I’m hoping SQL Permissions Extractor works better on the newer versions.

I’m just looking for basics on how to script all permissions on a server as well as all permissions on a specific database.
Those are two things I’m in need of doing quite frequently.

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