Various bits that came up while using this

Maybe worth noting/discussing:

• I've set ansible_python_interpreter="{{ ansible_playbook_python }}" in the inventory for the localhost machine. I've since realised that's not what we want when using linode-python, because that needs Python2.7 so it needs to point to a different virtual env. I think it's still good to leave this in because it shows there is something that can/should be filled in. Took me a very long time to find it the first time round.

• The .env.example was setting PASSWORD_STORE_DIR, while the bin/open-vault script was expecting APTIVATE_CLI_PASS_DIR. I thought it wasn't good to overwrite PASSWORD_STORE_DIR (maybe people won't always run this with Pipenv run and import the .env differently), and to remove the Aptivate reference I used ANSIBLE_PASSWORD_STORE_DIR instead.