How do I set up package.json dependencies to work like peer Dependencies in version 7 of npm?

Question

I have a package A that has 2 dependencies (aws-cdk-lib and constructs). I also have another package B with the same 2 dependencies. I also have package C which does not have the 2 dependencies.

I want to import package B into package A without installing the aws-cdk-lib and constructs, but when package C imports package B, I want it to install aws-cdk-lib and constructs.

I know this was possible using peer Dependencies in older versions of npm, but in newer versions, peer dependencies only gives you a warning if a dependency is not present.

Is there a way to set up package.json in package B so it will work in this way?