# Proxy backend Facilitates [local development](https://www.netlifycms.org/docs/beta-features/#working-with-a-local-git-repository). ## Code structure `Implementation` for [File Management System API](https://github.com/netlify/netlify-cms/tree/master/packages/netlify-cms-lib-util/README.md). An `RPC` wrapper for `netlify-cms-proxy-server`. `AuthenticationPage` - a mock authentication page