diff --git a/README.md b/README.md
index 3a15927..e21f59c 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # mumble
 
+A voice chat application similar to TeamSpeak.
+
diff --git a/mumble-1.3.0-jack-do-not-start-by-default.patch b/mumble-1.3.0-jack-do-not-start-by-default.patch
new file mode 100644
index 0000000..455f043
--- /dev/null
+++ b/mumble-1.3.0-jack-do-not-start-by-default.patch
@@ -0,0 +1,23 @@
+From 0780d93aab3eec9796e1cb8606c5f3c089d64eca Mon Sep 17 00:00:00 2001
+From: David Runge <dave@sleepmap.de>
+Date: Sun, 8 Mar 2020 19:28:59 +0100
+Subject: [PATCH] src/mumble/Settings.cpp: Setting bJackStartServer to false,
+ so mumble will not unconditionally start a JACK server on start (#3989).
+
+---
+ src/mumble/Settings.cpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/mumble/Settings.cpp b/src/mumble/Settings.cpp
+index 596e772dc2..b2e3990242 100644
+--- a/src/mumble/Settings.cpp
++++ b/src/mumble/Settings.cpp
+@@ -322,7 +322,7 @@ Settings::Settings() {
+ 
+ 	qsJackClientName = QLatin1String("mumble");
+ 	qsJackAudioOutput = QLatin1String("1");
+-	bJackStartServer = true;
++	bJackStartServer = false;
+ 	bJackAutoConnect = true;
+ 
+ 	bEcho = false;
diff --git a/mumble.spec b/mumble.spec
new file mode 100644
index 0000000..49f05ef
--- /dev/null
+++ b/mumble.spec
@@ -0,0 +1,103 @@
+Name:          mumble
+Version:       1.3.0
+Release:       2mamba
+Summary:       A voice chat application similar to TeamSpeak
+Group:         Graphical Desktop/Applications/Internet
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           https://www.mumble.info/
+## GITSOURCE https://github.com/mumble-voip/mumble.git 1.3.0
+Source:        https://github.com/mumble-voip/mumble.git/%{version}/mumble-%{version}.tar.bz2
+Patch0:        mumble-1.3.0-jack-do-not-start-by-default.patch
+License:       BSD
+## AUTOBUILDREQ-BEGIN
+BuildRequires: avahi-compat-libdns_sd-devel
+BuildRequires: glibc-devel
+BuildRequires: ldconfig
+BuildRequires: libGL-devel
+BuildRequires: libX11-devel
+BuildRequires: libXi-devel
+BuildRequires: libalsa-devel
+BuildRequires: libavahi-devel
+BuildRequires: libgcc
+BuildRequires: libglib-devel
+BuildRequires: libjack-devel
+BuildRequires: libopenssl-devel
+BuildRequires: libopus-devel
+BuildRequires: libprotobuf-devel
+BuildRequires: libpulseaudio-devel
+BuildRequires: libqt5-devel
+BuildRequires: libsndfile-devel
+BuildRequires: libspeechd-devel
+BuildRequires: libspeex-devel
+BuildRequires: libstdc++6-devel
+## AUTOBUILDREQ-END
+BuildRoot:     %{_tmppath}/%{name}-%{version}-root
+
+%description
+A voice chat application similar to TeamSpeak.
+
+%debug_package
+
+%prep
+%setup -q
+%patch0 -p1
+
+%build
+qmake-qt5 main.pro \
+    CONFIG+="no-bundled-opus no-bundled-speex no-g15 no-xevie no-server \
+    no-embed-qt-translations no-update packaged bundled-celt" \
+    DEFINES+="PLUGIN_PATH=%{_libdir}/mumble" \
+    INCLUDEPATH+="%{_includedir}/speech-dispatcher"
+
+make release
+
+%install
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+install -vDm 755 release/mumble -t %{buildroot}%{_bindir}
+install -vDm 755 scripts/mumble-overlay -t %{buildroot}%{_bindir}
+
+# (vendored) libs
+install -vdm 755 %{buildroot}%{_libdir}/mumble/
+for _lib in release/*.so*; do
+  if [ -L "$_lib" ]; then
+    cp -vP "$_lib" %{buildroot}%{_libdir}/mumble/
+  else
+    install -vDm 755 "$_lib" -t %{buildroot}%{_libdir}/mumble/
+  fi
+done
+install -vDm 755 release/plugins/*.so -t %{buildroot}%{_libdir}/mumble/
+# XDG desktop integration
+install -vDm 644 scripts/mumble.desktop -t %{buildroot}%{_datadir}/applications/
+# man page
+install -vDm 644 man/mumble*.1 -t %{buildroot}%{_mandir}/man1/
+# XDG desktop icons
+install -vDm 644 icons/mumble.svg -t %{buildroot}%{_datadir}/icons/hicolor/scalable/apps/
+
+%clean
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+%files
+%defattr(-,root,root)
+%{_bindir}/mumble
+%{_bindir}/mumble-overlay
+%dir %{_libdir}/mumble
+%{_libdir}/mumble/libcelt0.so*
+%{_libdir}/mumble/libl4d2.so
+%{_libdir}/mumble/liblink.so
+%{_libdir}/mumble/libmumble.so*
+%{_libdir}/mumble/librl.so
+%{_datadir}/applications/mumble.desktop
+%{_datadir}/icons/hicolor/scalable/apps/mumble.svg
+%{_mandir}/man1/mumble-overlay.1*
+%{_mandir}/man1/mumble.1*
+%doc AUTHORS LICENSE
+
+%changelog
+* Mon Apr 27 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 1.3.0-2mamba
+- added a patch to disable starting jack server by default
+
+* Mon Apr 27 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 1.3.0-1mamba
+- package created using the webbuild interface