diff --git a/README.md b/README.md
index fe9e756..4814b27 100644
--- a/README.md
+++ b/README.md
@@ -31,10 +31,10 @@ You only need `.env.example`, `docker-compose.yml` and `traefik/`.
 #### Do I need to use traefik?
 
 - Traefik needs to be used to forward traffic to the rooms. You can put nginx in front of it, but not replace it.
-- Your domain name specified for traefik must match domain name, that your proxy connects to.
-- Currently, there is no support for custom paths. You cannot host your `neko-rooms` on `example.com/neko-rooms/` but it needs own subdomain e.g. `neko-rooms.example.com`.
+- Your domain name specified for traefik must match domain name, that your proxy connects to. In docker-compose it is service name.
+- See example configuration for [nginx](docs/nginx).
 
-You can use `docker-compose.http.yml` that will expose this service to `APP_PORT`. See example configuration for [nginx](docs/nginx).
+You can use `docker-compose.http.yml` that will expose this service to `8080` or any port. 
 
 ### Step 1
 
diff --git a/docker-compose.http.yml b/docker-compose.http.yml
index c952c88..5cfc3c3 100644
--- a/docker-compose.http.yml
+++ b/docker-compose.http.yml
@@ -16,9 +16,9 @@ services:
       - "--providers.docker.watch=true"
       - "--providers.docker.exposedbydefault=false"
       - "--providers.docker.network=${NEKO_ROOMS_TRAEFIK_NETWORK}"
-      - "--entrypoints.${NEKO_ROOMS_TRAEFIK_ENTRYPOINT}.address=:${APP_PORT-8080}"
+      - "--entrypoints.${NEKO_ROOMS_TRAEFIK_ENTRYPOINT}.address=:80"
     ports:
-      - "${APP_PORT-8080}:${APP_PORT-8080}"
+      - "8080:80"
     volumes:
       - "/var/run/docker.sock:/var/run/docker.sock:ro"
 
@@ -32,7 +32,7 @@ services:
       - "NEKO_ROOMS_TRAEFIK_DOMAIN"
       - "NEKO_ROOMS_TRAEFIK_ENTRYPOINT"
       - "NEKO_ROOMS_TRAEFIK_NETWORK"
-      - "NEKO_ROOMS_TRAEFIK_PORT=${APP_PORT-8080}"
+      - "NEKO_ROOMS_INSTANCE_URL=http://${NEKO_ROOMS_TRAEFIK_DOMAIN}:8080/" # external URL
     volumes:
       - "/var/run/docker.sock:/var/run/docker.sock"
     labels:
diff --git a/internal/config/room.go b/internal/config/room.go
index cf29e2d..fcfaca2 100644
--- a/internal/config/room.go
+++ b/internal/config/room.go
@@ -4,6 +4,7 @@ import (
 	"strconv"
 	"strings"
 
+	"github.com/rs/zerolog/log"
 	"github.com/spf13/cobra"
 	"github.com/spf13/viper"
 
@@ -17,12 +18,13 @@ type Room struct {
 
 	NekoImages   []string
 	InstanceName string
+	InstanceUrl  string
 
 	TraefikDomain       string
 	TraefikEntrypoint   string
 	TraefikCertresolver string
 	TraefikNetwork      string
-	TraefikPort         string
+	TraefikPort         string // deprecated
 }
 
 func (Room) Init(cmd *cobra.Command) error {
@@ -46,6 +48,11 @@ func (Room) Init(cmd *cobra.Command) error {
 		return err
 	}
 
+	cmd.PersistentFlags().String("instance_url", "", "instance url that is prefixing room names (if different from `http(s)://{traefik_domain}/`)")
+	if err := viper.BindPFlag("instance_url", cmd.PersistentFlags().Lookup("instance_url")); err != nil {
+		return err
+	}
+
 	cmd.PersistentFlags().String("traefik_domain", "neko.lan", "traefik: domain on which will be container hosted")
 	if err := viper.BindPFlag("traefik_domain", cmd.PersistentFlags().Lookup("traefik_domain")); err != nil {
 		return err
@@ -66,7 +73,7 @@ func (Room) Init(cmd *cobra.Command) error {
 		return err
 	}
 
-	cmd.PersistentFlags().String("traefik_port", "", "traefik: external port (if different than 80 or 443)")
+	cmd.PersistentFlags().String("traefik_port", "", "traefik: external port (deprecated)")
 	if err := viper.BindPFlag("traefik_port", cmd.PersistentFlags().Lookup("traefik_port")); err != nil {
 		return err
 	}
@@ -111,10 +118,20 @@ func (s *Room) Set() {
 
 	s.NekoImages = viper.GetStringSlice("neko_images")
 	s.InstanceName = viper.GetString("instance_name")
+	s.InstanceUrl = viper.GetString("instance_url")
 
 	s.TraefikDomain = viper.GetString("traefik_domain")
 	s.TraefikEntrypoint = viper.GetString("traefik_entrypoint")
 	s.TraefikCertresolver = viper.GetString("traefik_certresolver")
 	s.TraefikNetwork = viper.GetString("traefik_network")
+
+	// deprecated
 	s.TraefikPort = viper.GetString("traefik_port")
+	if s.TraefikPort != "" {
+		if s.InstanceUrl != "" {
+			log.Warn().Msg("deprecated `traefik_port` config item is ignored when `instance_url` is set")
+		} else {
+			log.Warn().Msg("you are using deprecated `traefik_port` config item, you should consider moving to `instance_url`")
+		}
+	}
 }
diff --git a/internal/room/manager.go b/internal/room/manager.go
index 14093ee..39742e3 100644
--- a/internal/room/manager.go
+++ b/internal/room/manager.go
@@ -122,20 +122,28 @@ func (manager *RoomManagerCtx) Create(settings types.RoomSettings) (string, erro
 
 	containerName := manager.config.InstanceName + "-" + roomName
 
-	urlProto := "http"
-	if manager.config.TraefikCertresolver != "" {
-		urlProto = "https"
-	}
+	instanceUrl := manager.config.InstanceUrl
+	if instanceUrl == "" {
+		urlProto := "http"
+		if manager.config.TraefikCertresolver != "" {
+			urlProto = "https"
+		}
 
-	port := ""
-	if manager.config.TraefikPort != "" {
-		port = ":" + manager.config.TraefikPort
+		// deprecated
+		port := ""
+		if manager.config.TraefikPort != "" {
+			port = ":" + manager.config.TraefikPort
+		}
+
+		instanceUrl = urlProto + "://" + manager.config.TraefikDomain + port + "/"
+	} else if !strings.HasSuffix(instanceUrl, "/") {
+		instanceUrl = instanceUrl + "/"
 	}
 
 	labels := map[string]string{
 		// Set internal labels
 		"m1k1o.neko_rooms.name":       roomName,
-		"m1k1o.neko_rooms.url":        urlProto + "://" + manager.config.TraefikDomain + port + "/" + roomName + "/",
+		"m1k1o.neko_rooms.url":        instanceUrl + roomName + "/",
 		"m1k1o.neko_rooms.instance":   manager.config.InstanceName,
 		"m1k1o.neko_rooms.epr.min":    fmt.Sprintf("%d", epr.Min),
 		"m1k1o.neko_rooms.epr.max":    fmt.Sprintf("%d", epr.Max),