Didn't even thought about instant apps. That makes sense!
As for your approach, I've seen it really shine in a company where I used to work, where there are a bunch of products that share parts of the business logic for user management and permission handling. It's was rather complex logic, so having everything in the same place really helped a lot.
Sure, I'll try to write about it if I do go forward with the idea :) Thank you for answering!
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