Hardware: A few droplets in DO, a bunch of Orangepi's/Raspberrypi's and 3 HP Elitedesk G1 with some i7 and 32 gigs of ram each.

Software: bunch of solaris/omnios vm's, torrent client, owncloud, mtproto proxies for family and friends, my site, minecraft, quake, openttd, trss, gitea, drone.io, jenkins.

There is other stuff, but it is usually shortlived, i check it out, test it and most often discard it.

I'm also using Nomad at home. It's a single node "cluster" in my desktop Ubuntu-based machine, really using it to deploy some self hosted services more easily (the usual suspects for home automation and the likes).