How to register two registers in .npmrc?

Question

JavaScript

Good afternoon! Please tell me who knows npm installand yarndoes not work.
In package.json there are dependencies that can be drawn from the usual register https://registry.npmjs.organd from mine. https://myregistry.com
And in no way does it want to work normally and everything is installed.
Mistake

[1/4] Resolving packages...
error An unexpected error occurred:

The question is, is it possible to somehow register two registers in .npmrc?
Or some other way to solve this problem?
Thank you!

Answer 1

I don't know if this is correct, but I did this and it worked for me https://docs.npmjs.com/misc/scope