Services of all kinds are all the rage. Worker Daemons and the like have been around since the early days of computing but we've only recently been given the chance to make services with .NET Core.
The person that I first saw writing services was Tim Corey - he was even doing it before .NET Core!
Tim is a wealth of .NET knowledge! If you are reading this Tim, you rock!
At the moment I am working on a cross-platform service that will unzip files and folders programmatically from a preset directory on the (computer) device.