Helios can take some time to analyze your catalogue, but it only needs to analyze each song once. On a modern computer you can as a rough estimate assume about one song per second per CPU for the initial analysis.
However, the installation itself could potentially take under a minute or two. Helios uses the most advanced package management system in the world which has been under continuous development for nearly two decades. It is used in hundreds of operating systems.
Once installed Helios runs as a system service exporting a RESTful API. Helios will even take care of configuring your router automatically via UPnP if you ask it to.
If your IT is experienced with standard server environments, there is a very good chance they will be required to learn little to nothing that is new to them in order to install Helios.
