How to store, but hide, credentials used in sending emails from Python

I've experienced challenges setting up LFTP to perform a mirrored backup recognizing my exclusions and inclusion. This is my learnings

Thonny supports developing Python scripts on remote computers using SSH but debugger is not available. This is a work around on to perform remote debugging.

How to configure Thonny on one platform to program on a remote platform. For example, using Thonny on Windows to program Python on a Raspberry PI Zero.

Micropython Programming Templates for the Raspberry PI PICO W with PICO DISPLAY