CD and DevOps are normally associated with delivering web server-based solutions—that's not to say it is exclusively the case, however; this is the norm. As you have learned, CD and DevOps are not specifically associated with tools or techniques. A true adoption of CD and DevOps is based on enhancing culture, behaviors, and ways of working to smoothen the flow of changes so that value can be delivered continuously. This means that they don't need to be constrained to the usual flavor of software delivery. Once your business has adopted CD and DevOps as the way we do things around here, you could, should, and can apply the same approaches to solve other business problems.
The most obvious would be to apply the CD and DevOps approach to something that is normally painful for most businesses that delivery software...