diff --git a/README.md b/README.md
index bb5dff8..f0e25e1 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # box2d
 
+Box2D is a 2D physics engine for games.
+
diff --git a/box2d.spec b/box2d.spec
new file mode 100644
index 0000000..ac21604
--- /dev/null
+++ b/box2d.spec
@@ -0,0 +1,78 @@
+Name:          box2d
+Version:       2.4.1
+Release:       1mamba
+Summary:       A 2D physics engine for games
+Group:         Applications/Graphics
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           https://box2d.org/
+Source:        https://github.com/erincatto/box2d.git/v%{version}/box2d-%{version}.tar.bz2
+License:       MIT
+## AUTOBUILDREQ-BEGIN
+BuildRequires: glibc-devel
+BuildRequires: ldconfig
+BuildRequires: libgcc
+BuildRequires: libstdc++6-devel
+## AUTOBUILDREQ-END
+BuildRequires: cmake
+Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
+BuildRoot:     %{_tmppath}/%{name}-%{version}-root
+
+%description
+Box2D is a 2D physics engine for games.
+
+%package -n lib%{name}
+Group:         System/Libraries
+Summary:       A 2D physics engine for games
+
+%description -n lib%{name}
+Box2D is a 2D physics engine for games.
+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}
+
+%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}/libbox2d.so.*
+%doc LICENSE
+
+%files -n lib%{name}-devel
+%defattr(-,root,root)
+%dir %{_includedir}/box2d
+%{_includedir}/box2d/*.h
+%{_libdir}/libbox2d.so
+%dir %{_libdir}/cmake/box2d
+%{_libdir}/cmake/box2d/box2d*.cmake
+%doc README.md
+
+
+%changelog
+* Sat Jan 16 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 2.4.1-1mamba
+- package created using the webbuild interface