Concise Note App

What are you most proud of, and what would you do differently next time?

This is the most complicated project I have built so far. I learned a lot by making it a full-stack app, such as realizing that I can't use express-session for authorization since Vercel operates as a serverless platform. The most difficult part for me was organizing the layout properly. The design of the note app is concise and beautiful, and it has two entirely different layouts for laptop and mobile views. It bothered me a lot to figure out how to handle navigation and state management. I ended up using lots of state, and I believe there is a better way to deal with it.