friction2d/friction2d.github.io ? reverse-engineered prompt

Build me a clean website and documentation site for a project called Friction.

It should feel like a real open source project homepage, with pages for getting started, downloads, releases, news, quick tips, shortcuts, community, about, donate, and privacy. The docs should be written in markdown and rendered into a polished site, with the content organized so it is easy to update later. I also want the site to work well as a Jekyll based GitHub Pages site, and if you need to generate or convert documentation pages, use pandoc style markdown conversion.

Please make it look professional and simple, with a clear navigation, good typography, and a layout that works on desktop and mobile. Keep the focus on the product, its documentation, and helping people find what they need quickly. If anything needs current setup details, look up the latest docs online first.