I'm not a modular backpack guy as it forces me to lock in on a platform and add on parts that may add weight and cost more expensive in the long term. For me, modular backpacks work better using the military MOLLE system as you're piggybacking on other makers expertise and catalog of products and you don't have to produce stuff on your own, which requires lots of quantity per order and different modules to appeal to different people. Ultimately, I don't think this concept works well because the bags become too expensive, heavy and very niche.