What next to do?

I have been getting used to Ubuntu server and truenas scale.
But I have been thinking what would be next.

Firstly I don’t have any real ideas what I want to setup on the Ubuntu SVR box with docker and kubernetes. I think I will look into steam CMD for now, maybe minecraft hosting. And container for the wireshark.

Secondly, I am don’t want to be stuck on just ubuntu SVR, what other systems would be good to try to manage docker/kubernetes containers.

If you have ideas that would be good to learn something new, now that I am more familiar with CLI.

Look through this, I’m sure you’ll get some ideas