K3s Customized Flags to Edit Components

I am wondering how k3s edits the apiserver configuration when the ‘–kube-apiserver-arg’ argument is passed upon k3s server initialization. I’ve looked everywhere for the component config yaml file but can’t find them. Does anyone know how k3s does this?

Additionally, is there a more agile method of editing a main component such as the apiserver without having to restart the k3s server with the ‘–kube-apiserver-arg’ flag?