I've been using Dynaconf: https://github.com/rochacbruno/dynaconf https://github.com/rochacbruno/dynaconf for application configuration, and it's been quite ple

I've been using Dynaconf: https://github.com/rochacbruno/dynaconf https://github.com/rochacbruno/dynaconf for application configuration, and it's been quite pleasant. It has various options for cascading configuration sources, such that it makes it relatively straightforward to build a hybrid approach in the event that you're attempting to migrate from a file-based config system to a more modern 12-factor approach. At one point I needed to write a custom config source for Amazon Secrets Manager, and it proved quite easy to implement. Perhaps I should open source that…