diff --git a/Makefile b/Makefile
index 62373c1..b8dfece 100644
--- a/Makefile
+++ b/Makefile
@@ -3,10 +3,10 @@ PREFIX := /usr
 install: naxalnet
 	install -d $(DESTDIR)$(PREFIX)/bin
 	install -d $(DESTDIR)$(PREFIX)/lib/systemd/system/
-	install naxalnet.service $(DESTDIR)$(PREFIX)/lib/systemd/system/
+	install -m644 naxalnet.service $(DESTDIR)$(PREFIX)/lib/systemd/system/
 	install naxalnet $(DESTDIR)$(PREFIX)/bin/
 	install -d $(DESTDIR)$(PREFIX)/share/naxalnet/networkd
-	install systemd-networkd/* $(DESTDIR)$(PREFIX)/share/naxalnet/networkd
+	install -m644 systemd-networkd/* $(DESTDIR)$(PREFIX)/share/naxalnet/networkd
 
 testdeps:
 	@for i in networkctl systemctl python3; do \
diff --git a/README.md b/README.md
index 5c95037..b40d69a 100644
--- a/README.md
+++ b/README.md
@@ -98,6 +98,16 @@ If you were using NetworkManager before, enable it:
 sudo systemctl enable --now NetworkManager.service
 ```
 
+## License
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+See [LICENSE.md](LICENSE.md) for the complete version of the
+license.
+
 ## TODO
 
 - add support for wireless ap (WiFi hotspot)
diff --git a/naxalnet b/naxalnet
index 52c6f21..a87cb81 100755
--- a/naxalnet
+++ b/naxalnet
@@ -5,6 +5,22 @@ Setup a working BATMAN Advanced network
 with systemd-networkd and iwd
 """
 
+# Copyright (C) 2021  The Authors
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
 import sys
 from pathlib import Path
 from shutil import copy
@@ -30,7 +46,7 @@ try:
     for i in src.iterdir():
         copy(i, dest)
 except:
-    sys.exit("An error occured")
+    sys.exit("An error occured while copying network files")
 
 
 # Symlink resolvd.conf to systemd's stub-resolvd.conf
@@ -48,24 +64,26 @@ except:
     sys.exit("An error occured while linking resolv.conf")
 
 
-# connect to the System bus
-bus = SystemMessageBus()
-# iwd proxy
-iwd = bus.get_proxy("net.connman.iwd", "/")
+# Now, the iwd part
+try:
+    # connect to the System bus
+    bus = SystemMessageBus()
+    # iwd proxy
+    iwd = bus.get_proxy("net.connman.iwd", "/")
+    # Get list of all devices
+    print("Finding connected devices")
+    objects = iwd.GetManagedObjects()
+    devices = []
+    for name, obj in objects.items():
+        if "net.connman.iwd.Device" in obj:
+            # add all devices to the list
+            print("Found device:", obj["net.connman.iwd.Device"]["Name"])
+            devices.append(name)
+    # TODO: On first devices, start ad-hoc
+    # If there is a second device, start AP
+    # in it
+except:
+    sys.exit("An error occured while communicating with iwd")
 
-# Get list of all devices
-print("Finding connected devices")
-objects = iwd.GetManagedObjects()
-device_paths = []
-for name, obj in objects.items():
-    if "net.connman.iwd.Device" in obj:
-        # add all devices to the list
-        print("Found device:", obj["net.connman.iwd.Device"]["Name"])
-        device_paths.append(name)
-
-
-# TODO: On first devices, start ad-hoc
-# If there is a second device, start AP
-# in it
 
 print("Bye")
diff --git a/naxalnet.service b/naxalnet.service
index 9749225..339c3ed 100644
--- a/naxalnet.service
+++ b/naxalnet.service
@@ -1,5 +1,16 @@
 [Unit]
 Description=Naxalnet
+Requires=systemd-networkd.service
+Requires=iwd.service
+Wants=systemd-resolved.service
+Before=systemd-networkd.service
+After=iwd.service
+
+# Stops NetworkManager and wpa_supplicant if already running
+Conflicts=NetworkManager.service
+Conflicts=wpa_supplicant.service
+After=NetworkManager.service
+After=wpa_supplicant.service
 
 [Service]
 Type=oneshot