It's not an exaggeration to say that the choice of tech stack is just as critical as the product idea itself. For non-technical founders, the tech stack can feel like a black box — something the dev team just "handles." Here are four common traps I see founders fall into — and how to avoid them before they slow you down. How bad stack choices show upBy the time stack-related issues become visible, the damage has often already spread to other parts of the business. These are the four most common patterns I see founders fall into:1.