I just started playing with Dockhand and it looks like it has a built in update schedule mechanism. It’s fills a comparable role as Portainer, so maybe check that out.

I would make an FAQ. I think for getting tone it is important to know what things are hard facts, what things are more subjective preferences, and what’s things are “we had to make a choice between options with no clear ‘best’ option”.

My experience has been the more I assume I am an idiot and plan accordingly, the less true it is in practice.

Perl is fine so long as you write code based on the assumption it will be maintained an idiot that doesn’t know the code at all and needs hand holding. And that is why 6 months later I can understand the code I wrote.