[greyivy]

Yep! An Intel NUC running TrueNAS w/ a bunch of external HDDs (yes, I know the risks), an old laptop running Hassio (processing video frames through TensorFlow all day), and a router with FreshTomato. It's not perfect, but it was cheap and it gets the job done.

Running about 10-15 Docker containers on there, an instance of Windows 10 Pro (to RDP into because I don't want it anywhere near my dev machine), and two Minecraft servers.

[NhanH]

What is the risk of using external hdd?

[greyivy]

USB HDD firmware isn't very good, and certainly isn't built for a NAS set up. Data loss is a lot more probable.