pgbackrest only looks scary because it’s so flexible, but the defaults work great in almost all cases. The most complex thing you’ll need to do is creating a storage bucket to write to, and configure the appropriate storage provider in pgbackrest's config file.

When it’s set up properly, it’s solid as rock. I’d really recommend you check it out again; it likely solves everything you did more elegantly, and also covers a ton of things you didn’t think of. Been there, done that :)