Frameharborhttps://cdn-307e85.md.frameharbor.net/FrameharborSmall team, boring toolsWhy most of our stack is older than our youngest engineer.Our approach to capacity planningWe plan for the launch day, not the average day. That changes the maths.Why we stopped compressing everythingSome payloads got bigger, some CPUs got hotter. A short tour of the trade-offs.Range requests are harder than they lookPartial content, caching keys and the clients that ignore both.Notes from migrating our storage tierWe moved four petabytes without a maintenance window. Here is what went wrong along the way.Choosing points of presence on a budgetLatency maps, transit prices and the one spreadsheet that decided it.