> It used to be a constant headache to keep running

It’s been very easy to run for me since version 15 or something. Basically i just use the stock docker image and mount a few files over there. The data folders are bind-mounded directories.

As usual with anything php, it’s only a mess if you start managing php files and folders yourself. Php has a special capability of making these kind of things messy, i don’t know why.