How do I self-host and optimise fonts with SCOS and Breakdance?

This guide walks through picking fonts, extracting real .woff2 URLs from the Google Fonts CSS API, self-hosting in Breakdance global styles, disabling duplicate Google Font loads in SCOS and LiteSpeed Cache, and preloading only above-the-fold weights. It includes CLS guidance and a typography contract pattern. Some sections read as working notes — follow the numbered workflow and verify URLs in DevTools Network before production.