Just basic due diligence about performance and knowing your storage engine can easily get you to and even at unicorn level. Stack Overflow regularly bragged ab

Just basic due diligence about performance and knowing your storage engine can easily get you to and even at unicorn level. Stack Overflow regularly bragged about how their eight servers and a few MSSQL replicas were basically always in a coma, even at peak hours. That's just good engineering. Microservices themselves solve nothing out of the box.