I can't even count how many person-hours we have paid to create virtually unsupportable duplicated Jenkins instances and jobs, most of which are one-offs and no

I can't even count how many person-hours we have paid to create virtually unsupportable duplicated Jenkins instances and jobs, most of which are one-offs and nowhere in code. Maintenance isn't even a question; if the old instance is buggy, somebody else just makes a different one-off and you move your job there. Jenkins is a fantastic way to waste time and money.