diff --git a/README.md b/README.md
index fdff7b8..9273f56 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # fast_float
 
+Fast and exact implementation of the C++ from_chars functions for number types.
+
diff --git a/fast_float.spec b/fast_float.spec
new file mode 100644
index 0000000..ec70c65
--- /dev/null
+++ b/fast_float.spec
@@ -0,0 +1,54 @@
+Name:          fast_float
+Version:       6.1.1
+Release:       1mamba
+Summary:       Fast and exact implementation of the C++ from_chars functions for number types
+Group:         System/Libraries
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           https://github.com/fastfloat/fast_float
+Source:        https://github.com/fastfloat/fast_float.git/v%{version}/fast_float-%{version}.tar.bz2
+License:       Apache License 2.0
+## AUTOBUILDREQ-BEGIN
+## AUTOBUILDREQ-END
+BuildRequires: cmake
+Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
+
+%description
+Fast and exact implementation of the C++ from_chars functions for number types.
+
+%package -n lib%{name}-devel
+Group:         Development/Libraries
+Summary:       Fast and exact implementation of the C++ from_chars functions for number types
+
+%description -n lib%{name}-devel
+Fast and exact implementation of the C++ from_chars functions for number types.
+This package contains libraries and header files for developing applications that use %{name}.
+
+#% debug_package
+
+%prep
+%setup -q
+
+%build
+%cmake
+%cmake_build
+
+%install
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+%cmake_install
+
+%clean
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+%files -n lib%{name}-devel
+%defattr(-,root,root)
+%dir %{_includedir}/fast_float
+%{_includedir}/fast_float/*.h
+%dir %{_datadir}/cmake/FastFloat
+%{_datadir}/cmake/FastFloat/*.cmake
+%doc AUTHORS README.md
+
+%changelog
+* Sat May 04 2024 Silvan Calarco <silvan.calarco@mambasoft.it> 6.1.1-1mamba
+- package created using the webbuild interface