@konc Have a look at this site: https://ghostpi.pro/install-and-run-ghost-on-a-raspberry-pi/
It's an entire site about running Ghost on a Raspberry Pi. :)
@sandyman Brilliant, thanks! Do you have something that backs up your data from Raspberry Pis, or how does that work?
A personal one-man-show mastodon instance for me, myself and I.