Configuration is defined using profiles in Nextmv Cloud. Profiles let you define a configuration once for settings that are consistent across runs, and use it within a run by referencing the profile identifier. For certain types of functionality you'll need to define a profile in order to be able to use the feature. For example, some integration profiles require you to specify a secret API key that you wouldn't necessarily want to provide repeatedly. With a profile, you can set it once so we can store and manage the key securely.