I have been working in automation workflows for a while now, and this is something that comes up constantly.
Not ranked in any particular order, just grouped by theme. Everything on this list has been personally tested unless otherwise noted.
The numbers
I hate vague advice. Here are actual numbers from my setup. Your setup will differ, but at least you have a reference point instead of someone saying “it depends” for the fifth time.
The honorable mentions
A few things that almost made the list but did not quite make the cut. They are worth knowing about even if they are not essential: check the links at the bottom for more options.
I will update this article as things change — and in this space, things change fast. Bookmark it and check back. More related content at agnthq.com, agntai.net. Official references: Docker Docs, Cloudflare Learning.