How should technical founders navigate the build versus buy decision when architecting internal AI infrastructure?

Founders frequently fall into the trap of believing that managing their own bare-metal GPU clusters confers an engineering badge of honor. In reality, building proprietary cluster orchestration distracts from core product differentiation and incurs massive ongoing operational headcount costs. Unless your proprietary capability is literally virtualization systems engineering, you should outsource infrastructure and dedicate every engineering cycle to solving customer problems.