Divyanshupandey007/syncPad — reverse-engineered prompt

Build me a simple collaborative writing app called SyncPad. I want people to open the site, go to any URL path, and instantly get a shared document with no account needed. Multiple people should be able to type at the same time and see edits sync live without conflicts, even if changes happen at once. Show how many people are in the document, show connection status, let anyone rename the document title from the top bar, and keep that title synced for everyone too.

The editor should feel nice for plain text and code, with syntax highlighting for lots of languages, line numbers, word wrap, and a light and dark theme that remembers the user’s choice. Add a one click download to save the current document as a txt file.

Please make sure document data is persisted in a database, use Redis so it can scale across multiple backend instances, and make it easy to run locally with Docker and env files. Look up current docs online if you need to.