Chewawi/Sleeves ? reverse-engineered prompt

Build me a local web app that generates beautiful music poster cards from a song or album. I want to be able to give it a Last.fm username and have it pull the currently playing track, or send it track details directly with artist, title, cover image, release date, tracklist, and lyrics. It should render the result as a clean, high quality poster with cover art, text, and minimalist design choices, and let me choose between a few layouts like a standard one, a horizontal one, and a bigger 4K style version. Please support exporting as PNG or JPG, and make the output look good enough to share online or print. It should run locally, expose simple HTTP endpoints, and use a config file for layouts so I can tweak positioning and typography later. If you need current docs or examples for any libraries, look them up online first.