I work in data engineering and fixating on idempotence has been one of the best things I've ever done. Now whenever we build a new job or we review an existing

I work in data engineering and fixating on idempotence has been one of the best things I've ever done. Now whenever we build a new job or we review an existing one, the first question (well, second, first being 'do we actually need this?') is usually 'is this idempotent?' Saves SO much hassle. Processes fail, nodes disconnect, OOM kills stuff, these things happen on a daily basis in larger systems, be ready for that.