diff --git a/README.md b/README.md
index b198240..b3d46bf 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # ruby-mini_portile2
 
+Simple autoconf builder for developers.
+
diff --git a/ruby-mini_portile2.spec b/ruby-mini_portile2.spec
new file mode 100644
index 0000000..03747c9
--- /dev/null
+++ b/ruby-mini_portile2.spec
@@ -0,0 +1,53 @@
+Name:          ruby-mini_portile2
+Version:       2.8.0
+Release:       1mamba
+Summary:       Simple autoconf builder for developers
+Group:         Development/Tools
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           https://github.com/flavorjones/mini_portile
+Source:        https://github.com/flavorjones/mini_portile.git/v%{version}/mini_portile-%{version}.tar.bz2
+License:       MIT
+## AUTOBUILDREQ-BEGIN
+## AUTOBUILDREQ-END
+BuildRequires: ruby-devel
+Requires:      ruby
+
+%description
+Simple autoconf builder for developers.
+
+%prep
+%setup -q -n mini_portile-%{version}
+
+sed -r 's|~>|>=|g' -i mini_portile2.gemspec
+sed 's|git ls-files -z|find -type f -print0|' -i mini_portile2.gemspec
+
+%build
+gem build mini_portile2.gemspec
+
+%install
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+gemdir="$(ruby -rrubygems -e'puts Gem.default_dir')"
+gem install --no-user-install --ignore-dependencies -i "%{buildroot}$gemdir" -n "%{buildroot}/usr/bin" \
+	mini_portile2-%{version}.gem
+rm -rf %{buildroot}${gemdir}/cache
+
+rm -rf %{buildroot}%{_libdir}/ruby/gems/*/gems/mini_portile2-2.8.0/.github
+
+%clean
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+%files
+%defattr(-,root,root)
+%dir %{_libdir}/ruby/gems/*/doc/mini_portile2-%{version}
+%{_libdir}/ruby/gems/*/doc/mini_portile2-%{version}/*
+%dir %{_libdir}/ruby/gems/*/gems/mini_portile2-%{version}
+%{_libdir}/ruby/gems/*/gems/mini_portile2-%{version}/*
+%{_libdir}/ruby/gems/*/specifications/mini_portile2-%{version}.gemspec
+%doc LICENSE.txt
+
+%changelog
+* Sat Apr 23 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 2.8.0-1mamba
+- package created using the webbuild interface