diff --git a/hc2mqtt b/hc2mqtt
index 5125892..43d71ef 100755
--- a/hc2mqtt
+++ b/hc2mqtt
@@ -1,27 +1,36 @@
 #!/usr/bin/env python3
 # Contact Bosh-Siemens Home Connect devices
 # and connect their messages to the mqtt server
-import sys
 import json
-import re
+import sys
 import time
-import io
 from threading import Thread
-from HCSocket import HCSocket, now
-from HCDevice import HCDevice
+
+import click
 import paho.mqtt.client as mqtt
 
-if len(sys.argv) < 2:
-	print("Usage: hc2mqtt config.json", file=sys.stderr)
-	exit(1)
-with open(sys.argv[1], "r") as f:
-	config_json = f.read()
-devices = json.loads(config_json)
+from HCDevice import HCDevice
+from HCSocket import HCSocket, now
+
+
+@click.command()
+@click.argument("config_file")
+@click.option("-h", "--mqtt_host", default="localhost")
+@click.option("-p", "--mqtt_prefix", default="homeconnect/")
+def hc2mqtt(config_file: str, mqtt_host: str, mqtt_prefix: str):
+	click.echo(f"Hello {config_file=} {mqtt_host=} {mqtt_prefix=}")
+
+	with open(config_file, "r") as f:
+		devices = json.load(f)
+
+	client = mqtt.Client()
+	client.connect(host=mqtt_host, port=1883, keepalive=70)
+
+	for device in devices:
+		mqtt_topic = mqtt_prefix + device["name"]
+		thread = Thread(target=client_connect, args=(client, device, mqtt_topic))
+		thread.start()
 
-# these should probably be in the config too
-mqtt_prefix = "homeconnect/"
-client = mqtt.Client()
-client.connect("dashboard", 1883, 70)
 
 
 # Map their value names to easier state names
@@ -38,8 +47,7 @@ topics = {
 
 
 
-def client_connect(device):
-	mqtt_topic = mqtt_prefix + device["name"]
+def client_connect(client, device, mqtt_topic):
 	host = device["host"]
 
 	state = {}
@@ -93,7 +101,5 @@ def client_connect(device):
 
 		time.sleep(5)
 
-for device in devices:
-	thread = Thread(target=client_connect, args=(device,))
-	thread.start()
-
+if __name__ == "__main__":
+	hc2mqtt()
diff --git a/requirements.txt b/requirements.txt
index 13ed067..ace8426 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,3 +3,4 @@ websocket-client
 sslpsk
 paho.mqtt
 lxml
+click