When I read that same bit it sounds more like you can offer a product, such as some tool for your service, built on top of the library. You can't offer the libr

When I read that same bit it sounds more like you can offer a product, such as some tool for your service, built on top of the library. You can't offer the library itself as your product. My best guess at a transition point would be, does reading the documentation of the library help the end user? If so you are probably releasing the library as a product and not your own product.