What are some cool raspberry pi “server” type projects?

[csteele]

may I suggest:

Your first NodeJS install

As HubConnect v2.0 (aka v1.7) nears Release with it's HubConnect Server, it may be time to review what is needed to get a NodeJS environment installed and ready for the new Release. Many people have a NodeJS environment running, since it's needed for many other tools. Homebridge is a solid example. If you have Homebridge working, you already have a perfectly good environment for installing HubConnect Server side-by-side with Homebridge. If it's your first time, then there are plenty of How-To …