The runtime you build will have all plugins micro supports by default at time of compile, and any custom plugins you create that implement the interface. They a

The runtime you build will have all plugins micro supports by default at time of compile, and any custom plugins you create that implement the interface. They are hot-loaded at runtime, but you are correct in that you cannot unload them. Since the switching is done by environment variables, you'd have to restart to reload with other plugins. Plugins are really specific by platform combinations and support, so you're unlikely to change them much after initial launch. It's only useful if you're going from metal to cloud provider or changing the method of interaction between you API layers.