I think as long as you have a system for versioning the source code you are working on you will be fine. It's just that it will be a little more manual a process to perform (hence you might do it less often), but if it's a stable process then it should suffice.

Configuration Management isn't just about keeping your source in source control software / server somewhere, it's also about the tools, dependencies, and other artefacts that you need to build and distribute the software.

How many people take great care for the version control system but forget everything else?