I designed a Quick Release “Pizza Plate” for bike cargo racks of all shapes and sizes, and I’d like feedback and suggestions.

I've spent the better part of a year working on and refining a system for my e-bike that expands the capabilities of my rack without needing to constantly remove bags or cut zip ties. I got tired of having to constantly remove Velcro straps from my milk crate or cut zip ties of the plywood base I was strapping the Friday night pizzas to so that I could ride my bike to work without a plywood base or milk crate, so I developed a 3D printed and CNC'd plywood system.

I only have one bike with a rack, and I've been working on this for so long on my own, I'd like some other peoples constructive feedback on missing features, unforeseen problems, or missed opportunities.

https://www.printables.com/model/1393164-universal-quick-release-cargo-system

Thank you all!