diff --git a/README.md b/README.md
index 33956e4..7f27299 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # signal-desktop
 
+Signal Desktop links with Signal on Android or iOS and lets you message from your computers.
+
diff --git a/signal-desktop-5.40.1-expire-from-source-date-epoch.patch b/signal-desktop-5.40.1-expire-from-source-date-epoch.patch
new file mode 100644
index 0000000..5976926
--- /dev/null
+++ b/signal-desktop-5.40.1-expire-from-source-date-epoch.patch
@@ -0,0 +1,11 @@
+--- a/ts/scripts/get-expire-time.ts
++++ b/ts/scripts/get-expire-time.ts
+@@ -8,7 +8,7 @@ import { writeFileSync } from 'fs';
+ import { DAY } from '../util/durations';
+ 
+ const unixTimestamp = parseInt(
+-  execSync('git show -s --format=%ct').toString('utf8'),
++  process.env.SOURCE_DATE_EPOCH || execSync('git show -s --format=%ct').toString('utf8'),
+   10
+ );
+ const buildCreation = unixTimestamp * 1000;
diff --git a/signal-desktop-5.40.1-fix-better-sqlite-ssl-error.patch b/signal-desktop-5.40.1-fix-better-sqlite-ssl-error.patch
new file mode 100644
index 0000000..787189d
--- /dev/null
+++ b/signal-desktop-5.40.1-fix-better-sqlite-ssl-error.patch
@@ -0,0 +1,10 @@
+--- Signal-Desktop-5.40.1/package.json.orig	2022-04-25 17:34:46.527032365 +0200
++++ Signal-Desktop-5.40.1/package.json	2022-04-25 17:15:29.038266511 +0200
+@@ -14,6 +14,7 @@
+   "scripts": {
+     "postinstall": "yarn build:acknowledgments && patch-package && yarn electron:install-app-deps && rimraf node_modules/dtrace-provider",
+     "postuninstall": "yarn build:acknowledgments",
++    "preinstall": "npm install better-sqlite3@'^7.5.1' --no-save --force",
+     "start": "electron .",
+     "generate": "npm-run-all build-protobuf build:esbuild sass get-expire-time copy-and-concat",
+     "build-release": "yarn run build",
diff --git a/signal-desktop.desktop b/signal-desktop.desktop
new file mode 100644
index 0000000..b8aaa2f
--- /dev/null
+++ b/signal-desktop.desktop
@@ -0,0 +1,13 @@
+[Desktop Entry]
+Type=Application
+Name=Signal
+Comment=Signal - Private Messenger
+Comment[de]=Signal - Sicherer Messenger
+Icon=signal-desktop
+Exec=signal-desktop --use-tray-icon -- %u
+Terminal=false
+Categories=Network;InstantMessaging;
+StartupWMClass=Signal
+MimeType=x-scheme-handler/sgnl;
+Keywords=sgnl;chat;im;messaging;messenger;sms;security;privat;
+X-GNOME-UsesNotifications=true
diff --git a/signal-desktop.spec b/signal-desktop.spec
new file mode 100644
index 0000000..5827640
--- /dev/null
+++ b/signal-desktop.spec
@@ -0,0 +1,118 @@
+Name:          signal-desktop
+Version:       5.40.1
+Release:       3mamba
+Summary:       Signal Desktop links with Signal on Android or iOS and lets you message from your computers
+Group:         Graphical Desktop/Applications/Internet
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           https://signal.org/
+Source:        https://github.com/signalapp/Signal-Desktop.git/v%{version}/Signal-Desktop-%{version}.tar.bz2
+Source2:       signal-desktop.desktop
+Patch0:        signal-desktop-5.40.1-expire-from-source-date-epoch.patch
+Patch1:        signal-desktop-5.40.1-fix-better-sqlite-ssl-error.patch
+License:       Affero GNU Public License
+## AUTOBUILDREQ-BEGIN
+BuildRequires: glibc-devel
+BuildRequires: libX11-devel
+BuildRequires: libXcomposite-devel
+BuildRequires: libXdamage-devel
+BuildRequires: libXext-devel
+BuildRequires: libXfixes-devel
+BuildRequires: libXrandr-devel
+BuildRequires: libalsa-devel
+BuildRequires: libat-spi2-atk-devel
+BuildRequires: libat-spi2-core-devel
+BuildRequires: libatk-devel
+BuildRequires: libcairo-devel
+BuildRequires: libcups-devel
+BuildRequires: libdbus-devel
+BuildRequires: libdrm-devel
+BuildRequires: libexpat-devel
+BuildRequires: libgcc
+BuildRequires: libgdk-pixbuf-devel
+BuildRequires: libglib-devel
+BuildRequires: libgtk3-devel
+BuildRequires: libmesa-devel
+BuildRequires: libnspr-devel
+BuildRequires: libnss-devel
+BuildRequires: libpango-devel
+BuildRequires: libstdc++6-devel
+BuildRequires: libvips-devel
+BuildRequires: libxcb-devel
+BuildRequires: libxkbcommon-devel
+## AUTOBUILDREQ-END
+BuildRequires: git-lfs
+
+%description
+Signal Desktop links with Signal on Android or iOS and lets you message from your computers.
+
+%debug_package
+
+%prep
+%setup -q -n Signal-Desktop-%{version}
+#-D -T
+#:<< _EOF
+
+# Requires Nodejs 16.13.0
+export PROFILE=/dev/null
+curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.34.0/install.sh | bash
+export NVM_DIR="$HOME/.nvm"
+[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
+
+# git-lfs hook needs to be installed for one of the dependencies
+git lfs install
+
+# Allow higher Node versions
+#sed 's#"node": "#&>=#' -i package.json
+
+%patch0 -p1 -b .expire-from-source-date-epoch
+#%patch1 -p1
+
+yarn install
+#--ignore-engines
+
+%build
+#:<< _EOF
+export NVM_DIR="$HOME/.nvm"
+[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
+
+export SOURCE_DATE_EPOCH=`date +%s`
+
+yarn generate
+yarn build
+
+%install
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+install -d -m0755 %{buildroot}{%{_libdir},%{_bindir}}
+cp -a release/linux-unpacked %{buildroot}%{_libdir}/signal-desktop
+ln -s ../%{_lib}/signal-desktop/signal-desktop %{buildroot}%{_bindir}
+
+install -D -m0644 %{SOURCE2} %{buildroot}%{_datadir}/applications/signal-desktop.desktop
+
+for i in 16 24 32 48 64 128 256 512 1024; do
+  install -D -m0644 build/icons/png/${i}x${i}.png \
+    %{buildroot}%{_datadir}/icons/hicolor/${i}x${i}/apps/signal-desktop.png
+done
+
+%clean
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+%files
+%defattr(-,root,root)
+%{_bindir}/signal-desktop
+%{_datadir}/applications/signal-desktop.desktop
+%dir %{_libdir}/signal-desktop
+%{_libdir}/signal-desktop/*
+%{_datadir}/icons/hicolor/*/apps/signal-desktop.png
+%doc LICENSE
+
+%changelog
+* Wed Apr 27 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 5.40.1-3mamba
+- rebuilt with nvm to install compatible nodejs versione (16.13.0)
+
+* Tue Apr 26 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 5.40.1-2mamba
+- rebuilt
+
+* Sat Apr 23 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 5.40.1-1mamba
+- package created using the webbuild interface