Howtoforge posted a guide about installing Shopware Community Edition on Debian/Ubuntu

This tutorial shows how you can install and run Shopware Community Edition (version 3.5.6) on a Debian Squeeze or Ubuntu 12.04 system that has nginx installed instead of Apache (LEMP = Linux + nginx (pronounced "engine x") + MySQL + PHP). Shopware is a feature-rich ecommerce platform; I will use the Community Edition here which is free. nginx is a HTTP server that uses much less resources than Apache and delivers pages a lot of faster, especially static files.

  Running Shopware Community Edition (Version 3.5.6) On Nginx (LEMP) on Debian Squeeze/Ubuntu 12.04