diff --git a/nextcloud_devenv/runpodman.sh b/nextcloud_devenv/runpodman.sh
index 05bbc84..0226870 100755
--- a/nextcloud_devenv/runpodman.sh
+++ b/nextcloud_devenv/runpodman.sh
@@ -15,10 +15,21 @@ rel_bind_folder=bind_folder
 bind_folder=$(pwd)/$rel_bind_folder
 
 #lazzy detection base on first local ip
-listen_host=$(ip a | grep 192.168.1 |awk '{ gsub("/24","",$2); print $2 ; }')
+declare -a possible_hosts=($(ip a | grep 192.168.1 |awk '{ gsub("/24","",$2); print $2 ; }'))
+hosts_n=${#possible_hosts[@]}
+if (( hosts_n > 1 ))
+then
+    log_warn "multiple hosts $hosts_n"
+fi
+listen_host=${possible_hosts[0]}
+log_info "liston on $listen_host"
 
 declare -a podman_args
-podman_args+=(-p $listen_host:8080:80 --name=$container_name --replace)
+
+host_free_port=8081
+log_warn "[TODO] detect free port on $listen_host, use $host_free_port"
+
+podman_args+=(-p $listen_host:$host_free_port:80 --name=$container_name --replace)
 
 # container 33 www-data => current user.
 current_uid=$(id -u)
@@ -64,7 +75,13 @@ then
     podman_args+=(-d)
 fi
 
+log_info 'Adjusting trusted_domains in ${bind_folder}/config/config.php'
+# assumes a php is installed locally, could be changed to use a podman image or container
+sudo cp  ${bind_folder}/config/config.php .
+php patch_config.php "$listen_host:$host_free_port" | sudo tee ${bind_folder}/config/config.php
 
-echo "run podman with args ${podman_args[@]}"
+log_info "run podman with args ${podman_args[@]}"
+
+log_info "now you can start a browser on http://$listen_host:$host_free_port"
 
 $defer $podman run "${podman_args[@]}" $nextcloud_image