WordPress
Just a mirror of the WordPress subversion repository
... for decoupled front ends using frameworks like React, Vue, or Gatsby. Its maturity means a vast ecosystem of third-party integrations—SEO tools, forms, e-commerce, analytics—are available and battle-tested. Internally, WordPress handles routing, query parsing, template resolution, caching, and security hardening so developers can focus on content and user experience rather than infrastructure plumbing.