Why do I resent being invisible while my system runs everything?

You made the thing work without you. That is rare and hard, and now it hums along while you stand to the side, unseen. You feel robbed. But examine this closely: did you build it to be seen, or to work? If the second, it is working. The resentment is a sign you wanted both — competence and recognition — and told no one about the second part. No one denies you credit out of malice. Most people do not see maintenance; they see fires. A system that never breaks looks like nothing happened. This is not fair, but fairness was never promised to you. What is within your power is whether you explain your work in terms others can see — outcomes, hours saved, failures prevented — or whether you wait, silently, for someone to notice on their own. You cannot control what others praise. You can control what you say, when you say it, and to whom. Stop treating visibility as something owed to you and start treating it as a task, like any other, that you have been neglecting.