nmkdeveloper/freatedrop-docker ? reverse-engineered prompt

Build me a lightweight Markdown sharing app where people can paste in markdown and publish it instantly without needing to sign up. It should have a clean editor with live preview, support code highlighting, math, dark mode, and a couple of viewing options like full screen and print friendly pages. I also want anonymous edit and delete links that work through secure cookies, plus optional password protection for private drops.

Make it usable both as a public site and with user accounts, so people can log in and see their own dashboard, manage their posts, and shorten links when needed. Please keep the design simple and polished, with templates for the pages and a responsive frontend.

It should be easy to run with Docker and PostgreSQL, and if you need current docs for any libraries or setup details, look them up online.