I am going to get downvoted to hell for this, but it’s a legitimate question, I assure you. If this image is famous enough to go on a t-shirt, doesn’t that mean that the original, regardless if it was digital or analog, becomes more valuable?
Gotcha. Git is useful in so many way, but it can be confusing to learn. I don’t have a guide on hand but searching for ‘getting started with git’ will get you pretty far.
Another great way to do this that I just thought of this second is using Notion. It is in markdown.