I wrote a thing! It's about self-hosting very tiny Ghost publication on a shoestring - with instructions!
https://obrien.engineer/ghost-on-do-for-tiny-newsletters/
It's a follow-on from setting up Mailgun for tiny newsletters:
https://obrien.engineer/ghost-and-mailgun-for-tiny-newsletters/
I wrote an update to the Mailgun piece!
It's bad news.