Your question is Note-Taking App Architecture. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Design a Google Keep-like note-taking application (architecture, concurrency control, version conflicts, storage, scalability).
Asked in the System design stage. Discuss how clients create, edit, delete, and synchronize notes across devices, including offline operation and concurrent updates.
Address the storage model, APIs, synchronization protocol, optimistic concurrency control, conflict resolution, scalability, availability, and observability. Explain any ML component only if it provides clear value, such as detecting suspicious synchronization patterns or prioritizing conflict review. State assumptions when requirements or traffic volumes are unspecified.