diff --git a/README.md b/README.md
index 67a024c..bd5217c 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # ghc-skylighting-format-ansi
 
+GHC skylighting-format-ansi: ANSI formatter for skylighting syntax highlighting library.
+
diff --git a/ghc-skylighting-format-ansi.spec b/ghc-skylighting-format-ansi.spec
new file mode 100644
index 0000000..e22480a
--- /dev/null
+++ b/ghc-skylighting-format-ansi.spec
@@ -0,0 +1,147 @@
+%define ghc_ver %(ghc --numeric-version)
+%define pkg_name %(echo %name | sed "s|^ghc-||")
+
+Name:          ghc-skylighting-format-ansi
+Version:       0.1
+Release:       1mamba
+Summary:       GHC skylighting-format-ansi: ANSI formatter for skylighting syntax highlighting library
+Group:         Development/Libraries
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           https://hackage.haskell.org/package/%{pkg_name}
+Source:        https://hackage.haskell.org/package/skylighting-format-ansi-%{version}/skylighting-format-ansi-%{version}.tar.gz
+License:       BSD
+## AUTOBUILDREQ-BEGIN
+BuildRequires: ghc-OneTuple-devel
+BuildRequires: ghc-QuickCheck-devel
+BuildRequires: ghc-StateVar-devel
+BuildRequires: ghc-aeson-devel
+BuildRequires: ghc-ansi-terminal-devel
+BuildRequires: ghc-ansi-terminal-types-devel
+BuildRequires: ghc-assoc-devel
+BuildRequires: ghc-async-devel
+BuildRequires: ghc-attoparsec-devel
+BuildRequires: ghc-base-orphans-devel
+BuildRequires: ghc-base64-bytestring-devel
+BuildRequires: ghc-bifunctors-devel
+BuildRequires: ghc-bitvec-devel
+BuildRequires: ghc-blaze-builder-devel
+BuildRequires: ghc-blaze-html-devel
+BuildRequires: ghc-blaze-markup-devel
+BuildRequires: ghc-case-insensitive-devel
+BuildRequires: ghc-colour-devel
+BuildRequires: ghc-comonad-devel
+BuildRequires: ghc-conduit-devel
+BuildRequires: ghc-conduit-extra-devel
+BuildRequires: ghc-contravariant-devel
+BuildRequires: ghc-data-default-class-devel
+BuildRequires: ghc-data-fix-devel
+BuildRequires: ghc-distributive-devel
+BuildRequires: ghc-dlist-devel
+BuildRequires: ghc-foldable1-classes-compat-devel
+BuildRequires: ghc-generically-devel
+BuildRequires: ghc-hashable-devel
+BuildRequires: ghc-indexed-traversable-devel
+BuildRequires: ghc-indexed-traversable-instances-devel
+BuildRequires: ghc-integer-conversion-devel
+BuildRequires: ghc-integer-logarithms-devel
+BuildRequires: ghc-libs
+BuildRequires: ghc-mono-traversable-devel
+BuildRequires: ghc-network-devel
+BuildRequires: ghc-network-uri-devel
+BuildRequires: ghc-primitive-devel
+BuildRequires: ghc-random-devel
+BuildRequires: ghc-resourcet-devel
+BuildRequires: ghc-safe-devel
+BuildRequires: ghc-scientific-devel
+BuildRequires: ghc-semialign-devel
+BuildRequires: ghc-semigroupoids-devel
+BuildRequires: ghc-skylighting-core-devel
+BuildRequires: ghc-split-devel
+BuildRequires: ghc-splitmix-devel
+BuildRequires: ghc-streaming-commons-devel
+BuildRequires: ghc-strict-devel
+BuildRequires: ghc-tagged-devel
+BuildRequires: ghc-text-iso8601-devel
+BuildRequires: ghc-text-short-devel
+BuildRequires: ghc-th-abstraction-devel
+BuildRequires: ghc-th-compat-devel
+BuildRequires: ghc-these-devel
+BuildRequires: ghc-time-compat-devel
+BuildRequires: ghc-transformers-compat-devel
+BuildRequires: ghc-typed-process-devel
+BuildRequires: ghc-unliftio-core-devel
+BuildRequires: ghc-unordered-containers-devel
+BuildRequires: ghc-utf8-string-devel
+BuildRequires: ghc-uuid-types-devel
+BuildRequires: ghc-vector-algorithms-devel
+BuildRequires: ghc-vector-devel
+BuildRequires: ghc-vector-stream-devel
+BuildRequires: ghc-witherable-devel
+BuildRequires: ghc-xml-conduit-devel
+BuildRequires: ghc-xml-types-devel
+BuildRequires: ghc-zlib-devel
+BuildRequires: glibc-devel
+BuildRequires: libgmp-devel
+BuildRequires: libz-devel
+## AUTOBUILDREQ-END
+BuildRequires: ghc
+BuildRequires: ghc-rpm-macros
+Requires:      ghc = %{ghc_ver}
+
+%description
+%{summary}.
+
+%package devel
+Summary:        Haskell %{pkg_name} library development files
+Provides:       %{name}-static = %{?epoch:%epoch:}%{version}-%{release}
+Provides:       %{name}-static%{?_isa} = %{?epoch:%epoch:}%{version}-%{release}
+%if %{defined ghc_version}
+Requires:       ghc = %{ghc_version}
+%endif
+Requires:       %{name}%{?_isa} = %{?epoch:%epoch:}%{version}-%{release}
+
+%description devel
+This package provides the Haskell %{pkg_name} library development files.
+
+%if %{with haddock}
+%package doc
+Summary:        Haskell %{pkg_name} library documentation
+Requires:       ghc-filesystem
+
+%description doc
+This package provides the Haskell %{pkg_name} library documentation.
+%endif
+
+%prep
+%setup -q -n skylighting-format-ansi-%{version}
+
+%build
+%ghc_lib_build
+
+%install
+%ghc_lib_install
+
+rm -f %{buildroot}%{_ghclicensedir}/%{name}/LICENSE
+
+%clean
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+%files -f %{name}.files
+%defattr(-,root,root)
+%license LICENSE
+
+%files devel -f %{name}-devel.files
+%defattr(-,root,root)
+#%doc CHANGELOG.markdown README.markdown
+
+%if %{with haddock}
+%files doc -f %{name}-doc.files
+%defattr(-,root,root)
+%license LICENSE
+%endif
+
+%changelog
+* Sun Dec 03 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 0.1-1mamba
+- package created using the webbuild interface