diff --git a/main.go b/main.go
index ea56513..6b04831 100644
--- a/main.go
+++ b/main.go
@@ -616,20 +616,28 @@ func main() {
 		outDir = "/lists/"
 	}
 
-	listFile := flag.String("list", "", "optional text file with URLs or Name|URL pairs (overrides built-in map)")
-	listenAddr := flag.String("listen", ":8080", "HTTP listen address (e.g. :8080 or 127.0.0.1:8000)")
+	//listFile := flag.String("list", "", "optional text file with URLs or Name|URL pairs (overrides built-in map)")
+	listFile := os.Getenv("LIST")
+	if listFile == "" {
+		listFile = ""
+	}
+	//listenAddr := flag.String("listen", ":8080", "HTTP listen address (e.g. :8080 or 127.0.0.1:8000)")
+	listenAddr := os.Getenv("LISTEN")
+	if listenAddr == "" {
+		listenAddr = ":8080"
+	}
 	//listenPrefix := flag.String("prefix", "http://importer:8080", "HTTP prefix for url in /lists.json")
 	listenPrefix := os.Getenv("PREFIX")
 	if listenPrefix == "" {
 		listenPrefix = "http://flodimporter:8080"
 	}
-	flag.Parse()
+	//flag.Parse()
 
-	if *serveonly != "1" {
-		if err := os.MkdirAll(*outDir, 0o755); err != nil {
+	if serveonly != "1" {
+		if err := os.MkdirAll(outDir, 0o755); err != nil {
 			fatal("creating output dir", err)
 		}
-		targets, err := buildTargetList(*listFile)
+		targets, err := buildTargetList(listFile)
 		if err != nil {
 			fatal("building target list", err)
 		}
@@ -638,16 +646,16 @@ func main() {
 			return
 		}
 
-		fmt.Printf("Will fetch %d files, one every %v\n", len(targets), *delay)
+		fmt.Printf("Will fetch %d files, one every %v\n", len(targets), delay)
 		client := &http.Client{Timeout: 60 * time.Second}
-		ticker := time.NewTicker(*delay)
+		ticker := time.NewTicker(delay)
 		defer ticker.Stop()
 
 		for i, t := range targets {
 			if i > 0 {
 				<-ticker.C
 			}
-			if err := fetchAndSave(client, t, *outDir); err != nil {
+			if err := fetchAndSave(client, t, outDir); err != nil {
 				fmt.Fprintf(os.Stderr, "[ERROR] %s → %v\n", t.URL, err)
 			}
 		}
@@ -655,12 +663,12 @@ func main() {
 	}
 
 	// Static file handler.
-	fs := http.FileServer(http.Dir(*outDir))
+	fs := http.FileServer(http.Dir(outDir))
 	http.Handle("/lists/", http.StripPrefix("/lists/", fs))
 
 	// Custom index that shows a directory listing at root path.
 	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
-		data, err := buildIndexData(*outDir)
+		data, err := buildIndexData(outDir)
 		if err != nil {
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 			return
@@ -674,21 +682,21 @@ func main() {
 		w.Header().Set("Content-Type", "application/json; charset=utf-8")
 		enc := json.NewEncoder(w)
 		enc.SetIndent("", "  ")
-		data, err := buildIndexData(*outDir)
+		data, err := buildIndexData(outDir)
 		if err != nil {
 			fmt.Println("Error Build-Index")
 		}
 		d := map[string]string{}
 		for _, b := range data.Files {
-			d[b.Name] = *listenPrefix + "/lists/" + b.Name
+			d[b.Name] = listenPrefix + "/lists/" + b.Name
 		}
 		if err := enc.Encode(d); err != nil {
 			http.Error(w, err.Error(), http.StatusInternalServerError)
 		}
 	})
 
-	log.Printf("HTTP server listening on %s, serving %s", *listenAddr, *outDir)
-	log.Fatal(http.ListenAndServe(*listenAddr, nil))
+	log.Printf("HTTP server listening on %s, serving %s", listenAddr, outDir)
+	log.Fatal(http.ListenAndServe(listenAddr, nil))
 }
 
 // ──────────────────────────────────────────────────────────────────────────────