How scaling only cart and checkout on Black Friday cut my infrastructure bill and rewired mobile-first execution for composable platforms

https://garrettwigp625.tearosediner.net/that-moment-that-changed-my-approach-to-omnichannel-commerce-for-complex-b2b

I learned the hard way. Three failed projects, an inflated cloud bill, and a handful of frantic postmortems taught me that you do not need to scale every piece of your e-commerce stack equally for holiday peaks