Fill in the journal with all your transactions. Look at the dashboard to get a summary: debit, credit.
To setup a whitelist of urls, define ENV["HOSTS"] as a comma separated list.
Sending emails uses the ENV["DEFAULT_HOST"] variable
For example, in a .env file:
HOSTS=foo.example.com, foo.example.test
DEFAULT_HOST=foo.example.com
Build the image using
docker build --build-arg RUBY_VERSION=$(cat .ruby-version) -t journal_administration .