This is a memcached cache plugin for prerender.
In your local prerender project run:
$ npm install prerender-plugin-memcached --save
Then in the server.js that initializes the prerender:
server.use(require('prerender-plugin-memcached'));
By default it will connect to Memcached on localhost:11211 but if you set a MEMCACHED_SERVER environment variable it will connect to that server instead. Note that you must include the port in that server (i.e. '10.1.1.1:11211')