In the readme step 4: "docker-compose up" does not work
it should be "docker compose up".

error about time not being in the future when scheduling from createEmailDelivery
looks like an issue in paintmethods 304-306,
work if you hard code the time.
maybe strtotime()?

for the great new field name change page:
whilst the v8 API will supply a "column" attribute in fields, starting from 0;
this PAInt script's field column numbers start at 1.
it's not a problem once you know that.
it would be handy if it mentioned it on modifyListField.php

getting error from the docker file ENV need two args

ENV TZ-Europe/London
should be:
ENV TZ=Europe/London