Design a system which allows users to upload media and share with the world or with specific people.
This is a classic system design problem focused on enabling users to upload media and control visibility, either publicly or for specific people. A good solution usually starts with modeling users, media objects, sharing permissions, and access-control rules, then designs the upload flow, sharing mechanism, and read-time authorization checks. In an interview, you can also discuss storage, metadata management, permission validation, scalability, and high-traffic access patterns.
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