mod_sass is an Apache HTTPD module that automatically compiles SASS files into CSS. When a client's browser requests a SASS file, this module will fill the request with the compiled CSS. When a file is compiled, the resultant CSS is also cached. This means that the SASS is only compiled when the file has been modified, so the average wait time for the file is always very fast.
Zato is an Enterprise Service Bus (ESB) and app server written by pragmatists for pragmatists. It provides an HA load-balancer, hot-deployment, and hot-reconfiguration almost everywhere (forget server restarts). It has a browser-based GUI, CLI, and API (forget XML configuration). It supports many protocols, industry standards, and data formats, including HTTP, JSON, SOAP, REST, AMQP, JMS WebSphere MQ, ZeroMQ, Redis, SQL, and FTP.