As factorio players have said, "the factory is expanding to meet the needs of the expanding factory", the answer is nowadays the software that is developed is a

As factorio players have said, "the factory is expanding to meet the needs of the expanding factory", the answer is nowadays the software that is developed is also much more complex, need higher availability and involve more parties than in the past. Nowadays systems are integrated between divisions / departments, unlike 20 years ago, so to communicate we need many channels and thus ms team / slack. Nowadays system need to have 24/7 availability and downtime is bad, hence kubernetes. Nowadays we use more service tools, such as redis, elastic, grafana, etc. There are many more version of php and sql than in the past. Hence the need to use docker. Performing ajax call is a big thing in the past, now it's a basic requirement.