As someone who’s bough several albums on bandcamp, I’m pretty sure I’ve given more money to actual artists than the average spoify user ever has through their subscription.
So making an app when you’ve never programmed before is a big undertaking, but not impossible. You mentioned termux, so are you looking to make a command line app? That would be the easiest place to start. A simple cli dice roller is a great beginner project.
Beyond that, how do you envision the character sheet part working?
I generally prefer podman to docker at this point for the reasons you stated. However, podman is not 100% compatible with docker, and I have run in to issues with a few tools, that were admittedly poorly written. Mostly around how they deal with file permission when move files in and out of containers.
As someone who’s bough several albums on bandcamp, I’m pretty sure I’ve given more money to actual artists than the average spoify user ever has through their subscription.