Building A Journal Web App From Scratch Using Only Cursor

I wanted a Journaling app for myself for a very long time but I couldn’t find something with which I resonated. For such things I prefer them as web app, they enable you to use them from anywhere, they can even be installed on your phone like an app. The main requirement for such an app was to be completely secure, all user contents must be end-to-end encrypted. The encryption method I chose was AES-256-GCM-SIV. I have used LLM-assisted coding from time to time, but this is the first time that I used Cursor’s agent mode for building a complete project from scratch. I didn’t ask it to one shot it, because then it won’t be my app. I had specific ideas and opinions in mind that I wanted in my app. Features Privacy-first, end-to-end encrypted - both encryption and decryption happens on the client side Multi-journal layout, a Journal can have multiple Notebooks and a Notebook can have multiple Entries (content lives here) Each Journal will have their own key and user set passphrase Except…