diff --git a/.gitignore b/.gitignore
index efdbaf3..069d1a3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 # Other
+*.bin
 *.csv
 .env~
 .env*
diff --git a/app/route/gtfs-rt.js b/app/route/gtfs-rt.js
index 74de30b..6666809 100644
--- a/app/route/gtfs-rt.js
+++ b/app/route/gtfs-rt.js
@@ -1,5 +1,5 @@
 const axios=require('axios');
-const debug=require('debug')('debug');
+const debug=require('debug')('gtfs-rt');
 const express = require('express');
 const router = express.Router();
 
@@ -10,7 +10,10 @@ router.get('/', async function(req, res, next) {
     debug('gtfs-rt start...');
     try {
 
-	const URL='http://gtfsr.vbn.de/gtfsr_connect.bin';
+	//set url
+	const URL = process.env.URL || 'http://localhost:65535/gtfs-rt.bin';
+	debug('gtfs-rt:get() URL: ' + URL );
+
 	const config = {
 	    responseType: 'arraybuffer'
 	    //responseType: 'blob'
@@ -18,11 +21,14 @@ router.get('/', async function(req, res, next) {
 
 	const rspns = await axios.get(URL,config);
 
-	const filename = 'gtfs-rt.bin';
+	//set url
+	const DLOAD_FILE_NAME = process.env.DLOAD_FILE_NAME || 'blub.blub';
+	debug('gtfs-rt:get() DLOAD_FILE_NAME: ' + DLOAD_FILE_NAME );
+
 	res.writeHead(200, {
             //'Content-Type': mimetype,
 	    'Content-Type': 'application/octet-stream',
-            'Content-disposition': 'attachment;filename=' + filename,
+            'Content-disposition': 'attachment;filename=' + DLOAD_FILE_NAME,
             'Content-Length': rspns.data.length
 	});
 	res.end(Buffer.from(rspns.data, 'binary'));
diff --git a/index.js b/index.js
index db00901..4e64340 100644
--- a/index.js
+++ b/index.js
@@ -5,25 +5,23 @@ const FS = require('fs');
 DEBUG('index start...');
 const APP=require('./app/app');
 
-//TODO make port available via config
 //set port
 const PORT=parseInt(process.env.PORT, 10)||65535;
-DEBUG('PORT: '+PORT);
+DEBUG('index: PORT: ' + PORT);
 
-//TODO make env available via config
 //pass 'APP' to server
-DEBUG('NODE_ENV: '+process.env.NODE_ENV);
+DEBUG('index: NODE_ENV: ' + process.env.NODE_ENV);
 if (process.env.NODE_ENV !== 'production') {
-    DEBUG('development mode');
+    DEBUG('index: development mode');
     APP.listen(PORT);
 }else{
-    DEBUG('production mode');
+    DEBUG('index: production mode');
     HTTPS.createServer({
 	//TODO make key and cert available via config
         key: FS.readFileSync('./p'),
         cert: FS.readFileSync('./f')
     }, APP)
-    .listen(PORT, ()=>DEBUG('listening on port '+PORT));
+    .listen(PORT, ()=>DEBUG('index: listening on port '+PORT));
 }
 
-DEBUG('index done.');
+DEBUG('index: index done.');
diff --git a/readme.md b/readme.md
index ae035a9..bbf2f26 100644
--- a/readme.md
+++ b/readme.md
@@ -12,8 +12,14 @@ Requirements:
 npm i
 ```
 
-# Test
+# Development Setup
 
 ```
-DEBUG=debug,index npm run dev
+DEBUG=gtfs-rt,debug,index npm run dev
 ```
+
+# Test
+```
+curl http://localhost:65532/
+curl http://localhost:65532/gtfs-rt --output gtfs-rt.bin
+```
\ No newline at end of file