vanxh/openbio ? reverse-engineered prompt

Build me an open source link in bio app that lets people make a beautiful profile page with a customizable bento grid layout.

Users should be able to sign up, claim a username, and edit their page by adding and rearranging cards like links, notes, images, and videos. I want it to feel modern, clean, and easy to use on both desktop and mobile. It should support social sign in with Google or GitHub, and have a simple flow for upgrading to a paid plan if needed for more links or features.

Also make sure each profile can generate a nice social preview image automatically, and that the whole app is set up so it can be self hosted and deployed easily. If you need to check current docs for any integrations, feel free to look them up online.