diff --git a/README.md b/README.md
index 3d87a8c..55288d8 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # drpm
 
+A library for making, reading and applying deltarpm packages.
+
diff --git a/drpm.spec b/drpm.spec
new file mode 100644
index 0000000..a2cd680
--- /dev/null
+++ b/drpm.spec
@@ -0,0 +1,80 @@
+Name:          drpm
+Version:       0.5.0
+Release:       1mamba
+Summary:       A library for making, reading and applying deltarpm packages
+Group:         System/Management
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           https://github.com/rpm-software-management/drpm
+## GITSOURCE https://github.com/rpm-software-management/drpm.git 0.5.0
+Source:        https://github.com/rpm-software-management/drpm.git/%{version}/drpm-%{version}.tar.bz2
+License:       LGPL
+## AUTOBUILDREQ-BEGIN
+BuildRequires: glibc-devel
+BuildRequires: ldconfig
+BuildRequires: libbzip2-devel
+BuildRequires: liblzma-devel
+BuildRequires: libopenssl-devel
+BuildRequires: librpm-devel
+BuildRequires: libz-devel
+BuildRequires: libzstd-devel
+## AUTOBUILDREQ-END
+BuildRequires: cmake
+Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
+BuildRoot:     %{_tmppath}/%{name}-%{version}-root
+
+%description
+A library for making, reading and applying deltarpm packages.
+
+%package -n lib%{name}
+Group:         System/Libraries
+Summary:       A library for making, reading and applying deltarpm packages
+
+%description -n lib%{name}
+A library for making, reading and applying deltarpm packages.
+This package contains shared libraries for %{name}.
+
+%package -n lib%{name}-devel
+Group:         Development/Libraries
+Summary:       Development files for %{name}
+Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
+Requires:      pkg-config
+
+%description -n lib%{name}-devel
+This package contains libraries and header files for developing applications that use %{name}.
+
+
+%debug_package
+
+%prep
+%setup -q
+
+%build
+%cmake -d build
+%make
+
+%install
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+%makeinstall -C build
+
+%clean
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+%post -n lib%{name} -p /sbin/ldconfig
+%postun -n lib%{name} -p /sbin/ldconfig
+
+%files -n lib%{name}
+%defattr(-,root,root)
+%{_libdir}/libdrpm.so.*
+%doc COPYING
+
+%files -n lib%{name}-devel
+%defattr(-,root,root)
+%{_includedir}/drpm.h
+%{_libdir}/libdrpm.so
+%{_libdir}/pkgconfig/drpm.pc
+
+%changelog
+* Sat Sep 12 2020 Silvan Calarco <silvan.calarco@mambasoft.it> 0.5.0-1mamba
+- package created using the webbuild interface