I composed this note to self (gist) on Friday 9 April 2021 with an early morning start with multiple subsequent revisions. The main guide that I am working with is "Heroku PGBackups" The lesser guide I also used was "Heroku Postgres import export".
There are two methods of backup data. The easy way is using Heroku's web GUI Dashboard. The hardway is via CLI.
Visit the location in my Heroku Dashboard for the NAVY Postgres instance. (I keep a copy of this image locally in my /home//Dropbox/bax/web/tarot_juicer_Heroku_AWS/NAVY-real-prod/
directory.) As you can see, all you need to do is click the purple: "Create Manual Backup" button and then click the white/purple "Do