Where did ssh go?

I appreciate the dialog even though we have long passed up the original question.

“If you’re running a NUC for homeassistant only then the best option would be to use homeassistant OS.”

Why?
And how?

I originally installed Home Assistant following the tutorial by Jason Reibelt (Kanga_Who) titled “Home Assistant Supervised on Ubuntu 18.04.04”, dated May 28, 2020. But it was about the same time that Ubuntu was declared unacceptable. I missed that memo.

Is the image for Home Assistant at Generic x86-64 - Home Assistant
bootable? (I would assume that an image is bootable). Is it HassOS plus supervisor? The instructions at Generic x86-64 - Home Assistant stop at burning the SD card. It doesn’t mention that you can’t boot from the SD card on a NUC. You have to go through the BIOS to do that.

Or, is this guide still appropriate?

The reason I want to silo my Home Assistant apart from other functions on its own NUC is really that I want to isolate my MediaWiki. The last time I moved the MediaWiki database to a new server, it took me two days to get it completely working again. Moving Home Assistant is really painless- after deciding on which of five installation methods to use.