A lot of these things aren't about scale and performance, but maintainability. Once you get over the initial learning curve, things like static typing, Docker,

A lot of these things aren't about scale and performance, but maintainability. Once you get over the initial learning curve, things like static typing, Docker, cloud services managed with Terraform, etc. don't require that that much up-front effort and save you a lot of time in the long-run.