I know it's small fry compared to the knowledge you guys have, but I just wanted to express my initial gratitude at such a great guide, the helpfulness of the users of this thread and the wider opensource community
From a total beginner/noob, this week I've managed to install and use a Linux distribution, run commands, install the required software, buy all the correct parts for the project and was able to deduce the +ve and -ve pins of a female barrel jack and reduce the voltage on a stepper!
Next week, I'll be attempting soldering for the first time to attach the HAT and start on the wiring required for my automated feeding doser.
Thanks again!