How do I find meaning in work that makes me replaceable?

You build systems that keep running after you step away, and there's a strange grief in that. The better you do it, the less anyone seems to need you. Finding worth in work that erases its own author takes a while to sort out. But look again at what you actually did. You took chaos and left order behind. The fact that it runs smoothly without you isn't your erasure, it's your signature. Anyone can make themselves the hero of a mess. It takes a real craftsman to build something that no longer needs the craftsman. Shift where you look for the reward. Not in being called, but in the quiet of a thing that just works. Next time something runs fine without you, let that be the win it actually is.