{lib, ...}: { virtualisation.oci-containers.containers."echo-http-service" = { image = "hashicorp/http-echo"; extraOptions = ["-text='Hello, World!'" "--network=web"]; ports = ["5679:5678"]; }; system.activationScripts.createPodmanNetworkWeb = lib.mkAfter '' if ! /run/current-system/sw/bin/podman network exists web; then /run/current-system/sw/bin/podman network create web fi ''; }