Touching on domain knowledge, reminds me that there are different types of software applications, yet I rarely see any differentiation. There is just “software”

Touching on domain knowledge, reminds me that there are different types of software applications, yet I rarely see any differentiation. There is just “software”. Much of the audience and discussion here on HN revolves around applications in computing, the computer and data sciences, and software infrastructure. For this purpose, “external” business domain knowledge and value is of little interest?