ProGet for Linux is already out; it's shiped as a docker container. We have a lot of users who install ProGet on server core, but please note it's an advanced OS and requires a lot of commandline use. So, it's a bit more difficult to install ProGet on this. A ProGet Node is either the Web or Indexing Service. The "Load Balanced Only" comes with just three nodes, so for this yo you would have two web nodes and then Service node. An enterprise installation will have 5+ nodes, which typically is multiple services nodes (at least two) and then the rest web nodes. With automatic failover, basically if one of the indexing services becomes inactive, then the other takes over indexing duties. Sure, as long as the web and indexing service can access the files using the regular File IO (i.e. it shows up as a drive in windows), then you can use the regular disk package store for this.