lowlighter/metrics ? reverse-engineered prompt

Build me a GitHub metrics generator that can turn a user, organization, or repository into a nice looking infographic I can embed in a profile README or anywhere else.

I want it to pull stats from GitHub and render them as SVG by default, but also let me export to Markdown, PDF, or JSON when needed. It should support a bunch of different metric sections, like activity, languages, stars, contributors, topics, habits, and commit calendar style views, with lots of customization so I can turn sections on or off and tweak the layout.

Please make it work as a simple command or service I can run, and make sure it can generate clean images that look good in a README. If there are existing docs or current GitHub API details that would help, look them up online and use them.