diff --git a/README.md b/README.md
index 412536e..62142eb 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # xf86-video-dummy
 
+dummy X.Org video drivers.
+
diff --git a/xf86-video-dummy.spec b/xf86-video-dummy.spec
new file mode 100644
index 0000000..5fd7369
--- /dev/null
+++ b/xf86-video-dummy.spec
@@ -0,0 +1,96 @@
+%define xorg_ver %(pkg-config xorg-server --modversion|cut -d. -f 1-2)
+Name:          xf86-video-dummy
+Version:       0.4.0
+Release:       1mamba
+Summary:       dummy X.Org video drivers
+Group:         System/X11
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           https://www.x.org/wiki/
+Source:        https://ftp.x.org/archive/individual/driver/xf86-video-dummy-%{version}.tar.xz
+License:       MIT
+## AUTOBUILDREQ-BEGIN
+BuildRequires: glibc-devel
+## AUTOBUILDREQ-END
+BuildRequires: xorg-server-devel >= 21.1.3-1mamba
+Requires:      xorg-server >= %{xorg_ver}
+Requires:      xorg-server <= %{xorg_ver}.255
+Provides:      xorgdrvvideo
+Provides:      xorg-drv-video-dummy
+Obsoletes:     xorg-drv-video-dummy < 0.4.0
+
+%description
+dummy X.Org video drivers.
+
+%debug_package
+
+%prep
+%setup -q
+
+%build
+%configure
+%make
+
+%install
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+%makeinstall
+
+%clean
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+%files
+%defattr(-,root,root)
+%{_libdir}/xorg/modules/drivers/dummy_drv.so
+
+%changelog
+* Sun Feb 26 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 0.4.0-1mamba
+- update to 0.4.0
+
+* Sat Feb 19 2022 Automatic Build System <autodist@mambasoft.it> 0.3.8-4mamba
+- rebuilt by autoport with build requirements: xorg-server-devel>=21.1.3-1mamba
+
+* Sun Mar 03 2019 Silvan Calarco <silvan.calarco@mambasoft.it> 0.3.8-3mamba
+- rebuilt with xorg-server 1.20.4
+
+* Thu Dec 07 2017 Automatic Build System <autodist@mambasoft.it> 0.3.8-2mamba
+- rebuild with xorg-server 1.19.5
+
+* Thu Jan 12 2017 Automatic Build System <autodist@mambasoft.it> 0.3.8-1mamba
+- automatic version update by autodist
+
+* Fri Aug 21 2015 Silvan Calarco <silvan.calarco@mambasoft.it> 0.3.7-3mamba
+- rebuilt with xorg-server 1.17.2
+
+* Sat Jun 14 2014 Automatic Build System <autodist@mambasoft.it> 0.3.7-2mamba
+- X.org 1.15 rebuild
+
+* Wed Sep 11 2013 Automatic Build System <autodist@mambasoft.it> 0.3.7-1mamba
+- automatic update by autodist
+
+* Tue Mar 05 2013 Silvan Calarco <silvan.calarco@mambasoft.it> 0.3.6-3mamba
+- xorg-server 1.12 mass rebuild
+
+* Thu Dec 06 2012 Silvan Calarco <silvan.calarco@mambasoft.it> 0.3.6-2mamba
+- mass rebuild: xorg-server 1.10 backport from devel-xorg
+
+* Mon Aug 13 2012 Automatic Build System <autodist@mambasoft.it> 0.3.6-1mamba
+- automatic version update by autodist
+
+* Thu Jun 07 2012 Silvan Calarco <silvan.calarco@mambasoft.it> 0.3.5-1mamba
+- automatic update by autodist
+
+* Fri Feb 17 2012 Silvan Calarco <silvan.calarco@mambasoft.it> 0.3.4-3mamba
+- automatic update by autodist
+
+* Fri Aug 12 2011 Silvan Calarco <silvan.calarco@mambasoft.it> 0.3.4-2mamba
+- automatic port from devel
+
+* Wed Jul 07 2010 Automatic Build System <autodist@mambasoft.it> 0.3.4-1mamba
+- automatic update by autodist
+
+* Wed Feb 17 2010 Automatic Build System <autodist@mambasoft.it> 0.3.3-1mamba
+- automatic update by autodist
+
+* Sun Jun 07 2009 Ercole 'ercolinux' Carpanetto <ercole69@gmail.com> 0.3.1-1mamba
+- Package created