Another thing worthy of note is that Traefik is configured by default in K3s. This has allowed K3s to be the quickest way to spin up a K8s cluster for testing, essentially allowing you to treat your cluster like cattle too. Simply add your deployment and associated service using NodePort, and you can access your app without worrying about the ingress controller.

I use a shell script to spin up K3s clusters and test apps I specify as a positional parameter on demand (leveraging the ttl.sh ephemeral container registry). The same script tears down the cluster when finished.