You spent an hour crafting the perfect post. The caption is tight, the visual is on-brand, and the timing is right. You hit publish on Instagram — and move on. But what about your LinkedIn followers? Your Facebook audience? The people who only ever open Threads? If you’re a smart marketer who loves to save time, the answer is simple: cross-post your content across platforms. The problem is that doing it manually (duplicating posts, reformatting…