Being fair, after deciding I could do better than the factory case, I got the initial build plan idea from an ASMR video reel on YT. It taught me a lot of technique for making a 3D objects. Things like the double laying, box and butt stitching, and how to balance the weight so it sits nicely on a strap looped on your shoulder.

I'm a little bit of an autodidact and a visual context learner. If I can see it, I can figure it out. Reels will tell you a lot, but they don't give you the nuance, feel, or properties of the materials you're dealing with. For me, that's the real allure. After seeing the case in my office, I got to see how my mind took something similar and translated and interpreted it with my own flair.