diff --git a/GUST-FONT-LICENSE.txt b/GUST-FONT-LICENSE.txt
new file mode 100644
index 0000000..306d614
--- /dev/null
+++ b/GUST-FONT-LICENSE.txt
@@ -0,0 +1,29 @@
+% This is version 1.0, dated 22 June 2009, of the GUST Font License.
+% (GUST is the Polish TeX Users Group, http://www.gust.org.pl)
+%
+% For the most recent version of this license see
+% http://www.gust.org.pl/fonts/licenses/GUST-FONT-LICENSE.txt
+% or
+% http://tug.org/fonts/licenses/GUST-FONT-LICENSE.txt
+%
+% This work may be distributed and/or modified under the conditions
+% of the LaTeX Project Public License, either version 1.3c of this
+% license or (at your option) any later version.
+% 
+% Please also observe the following clause:
+% 1) it is requested, but not legally required, that derived works be
+%    distributed only after changing the names of the fonts comprising this
+%    work and given in an accompanying "manifest", and that the
+%    files comprising the Work, as listed in the manifest, also be given
+%    new names. Any exceptions to this request are also given in the
+%    manifest.
+%    
+%    We recommend the manifest be given in a separate file named
+%    MANIFEST-<fontid>.txt, where <fontid> is some unique identification
+%    of the font family. If a separate "readme" file accompanies the Work, 
+%    we recommend a name of the form README-<fontid>.txt.
+%
+% The latest version of the LaTeX Project Public License is in
+% http://www.latex-project.org/lppl.txt and version 1.3c or later
+% is part of all distributions of LaTeX version 2006/05/20 or later.
+
diff --git a/README.md b/README.md
index 30f3596..a702fe0 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # tex-gyre-fonts
 
+Substitute PostScript fonts in OpenType format.
+
diff --git a/tex-gyre-fonts.spec b/tex-gyre-fonts.spec
new file mode 100644
index 0000000..57e6ec7
--- /dev/null
+++ b/tex-gyre-fonts.spec
@@ -0,0 +1,41 @@
+%define pkgver %(echo %version | tr . _)
+Name:          tex-gyre-fonts
+Version:       2.501
+Release:       1mamba
+Summary:       Substitute PostScript fonts in OpenType format
+Group:         System/Fonts
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           http://www.gust.org.pl/projects/e-foundry/tex-gyre
+Source:        http://www.gust.org.pl/projects/e-foundry/tex-gyre/whole/tg%{pkgver}otf.zip
+Source1:       http://www.gust.org.pl/projects/e-foundry/licenses/GUST-FONT-LICENSE.txt
+License:       The LaTeX Project Public License
+## AUTOBUILDREQ-BEGIN
+## AUTOBUILDREQ-END
+
+%description
+Substitute PostScript fonts in OpenType format.
+
+%prep
+%setup -q -c
+cp %{SOURCE1} .
+
+%build
+
+%install
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+install -D -m0644 -t %{buildroot}%{_datadir}/fonts/tex-gyre tg%{pkgver}otf/*.otf
+
+%clean
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+%files
+%defattr(-,root,root)
+%dir %{_datadir}/fonts/tex-gyre
+%{_datadir}/fonts/tex-gyre/*.otf
+%doc GUST-FONT-LICENSE.txt
+
+%changelog
+* Sat May 28 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 2.501-1mamba
+- package created using the webbuild interface