Act IX of XProductA shipped product lives in three places at once — on a screen in front of a user, in production under load, and in the daily practice of the team that keeps it alive.Sub-chaptersThis act splits because the territory is too big for one page.IXaInterfacesStart hereThe browser as a runtime · 9 topics→IXbEngineering CraftVersion control as thinking tool · 8 topics→IXcOperationsCapacity planning · 9 topics→← Act VIIIAI EngineeringAct X →Frontier←→