Fewer Rebuilds, Lower Costs: A Practical 7-Point Plan to Stop Churn and Control Migration Spend

https://xeon-wiki.win/index.php/How_Scaling_Only_Cart_and_Checkout_on_Black_Friday_Cut_Our_Marketplace_Infrastructure_Bill

1) Why cutting rebuilds is the single most effective cost-control tactic for your engineering budget You know the drill: every time you rip out a platform or run a large migration you burn months of engineering time, increase risk,