Lightweight HTTP cache, based on file, suitable for CDN especially

This claims to be "easier to use" than varnish or squid, but it seems exactly the opposite:

- For production they recommend and complete partition be assigned to it for raw block storage

- it has no built in method to make origin requests - you have to use Nginx and an extra module to insert items j to the cache.

- because of the aforementioned Nginx requirement it's apparently not intended to sit in front of your web server directly, it needs Nginx in front of it, with the logic of when to request from origin pushed into the Nginx config.

- It appears to have basically none of the configurabilitt/power of Varnish with a good vcl file.