diff --git a/build-and-update-all-branches b/build-and-update-all-branches
new file mode 100755
index 0000000..1e4b0b4
--- /dev/null
+++ b/build-and-update-all-branches
@@ -0,0 +1,33 @@
+#! /bin/sh
+
+# Prepare rawhide branch, review the list of branches below and then execute this
+# script.
+
+branches='rawhide epel9 epel8 epel7 f34 f35'
+
+exit_handler ()
+{
+    git checkout rawhide
+}
+
+trap exit_handler EXIT
+
+set -e
+set -x
+
+koji hello
+
+tasks=
+for branch in $branches; do
+    if test $branch != rawhide; then
+        git checkout "$branch"
+        git merge rawhide
+    fi
+    git push
+    tasks="${tasks}`fedpkg build --nowait | grep 'Created task' | cut -d: -f2`"
+done
+
+koji watch-task $tasks
+
+git checkout rawhide
+fedpkg update
diff --git a/distgen.spec b/distgen.spec
index 8f75ee6..e0cd0fd 100644
--- a/distgen.spec
+++ b/distgen.spec
@@ -1,14 +1,41 @@
+%global pybin %{?fedora:%{__python3}}%{!?fedora:%{__python2}}
+%global pylib %{?fedora:%{python3_sitelib}}%{!?fedora:%{python2_sitelib}}
+%global pypkg %{?fedora:python3}%{!?fedora:python}
+%global meh_pypkg %{?fedora:%{pypkg}-}
+
+%if 0%{?rhel} >= 8
+%global pybin %__python3
+%global pylib %python3_sitelib
+%global pypkg python3
+%global meh_pypkg python3-
+%endif
+
+
 Name:       distgen
 Summary:    Templating system/generator for distributions
-Version:    2.4
+Version:    1.18
 Release:    1%{?dist}
 License:    GPL-2.0-or-later AND Apache-2.0
 URL:        https://github.com/devexp-db/distgen
 BuildArch:  noarch
 
-BuildRequires: python3-devel
-BuildRequires: pyproject-rpm-macros
-BuildRequires: python3-pytest
+Requires: %{pypkg}-jinja2
+Requires: %{pypkg}-distro
+Requires: %{meh_pypkg}PyYAML
+Requires: %{pypkg}-six
+
+BuildRequires: make
+BuildRequires: %{pypkg}-devel
+BuildRequires: %{pypkg}-distro
+BuildRequires: %{pypkg}-jinja2
+BuildRequires: %{meh_pypkg}pytest
+%if 0%{?rhel} && 0%{?rhel} < 8
+BuildRequires: %{pypkg}-mock
+BuildRequires: %{pypkg}-pytest-catchlog
+%endif
+BuildRequires: %{meh_pypkg}PyYAML
+BuildRequires: %{pypkg}-setuptools
+BuildRequires: %{pypkg}-six
 
 Source0: https://pypi.org/packages/source/d/%name/%name-%version.tar.gz
 
@@ -20,74 +47,33 @@ file and preexisting distribution metadata generate output file.
 %prep
 %autosetup -p1
 
-%generate_buildrequires
-%pyproject_buildrequires
-
 
 %build
-%pyproject_wheel
+%{pybin} setup.py build
 
 
 %install
-%pyproject_install
-%pyproject_save_files distgen
+%{pybin} setup.py install --root=%{buildroot}
+mkdir -p %{buildroot}%{_datadir}/distgen
+mv %{buildroot}%{pylib}/distgen/{distconf,templates} %{buildroot}%{_datadir}/distgen
 
 
 %check
-%pytest tests/unittests/
+make PYTHON=%{pybin} check
 
 
-%files -f %{pyproject_files}
+%files
 %license LICENSE
-%doc NEWS
+%doc AUTHORS NEWS
 %doc docs/
 %{_bindir}/dg
+%{pylib}/distgen
+%{pylib}/%{name}-*.egg-info
+%{_datadir}/%{name}
 %{_mandir}/man1/*
 
 
 %changelog
-* Wed Aug 26 2026 Artur Frenszek-Iwicki <fedora@svgames.pl> - 2.4-1
-- Update to v2.4
-
-* Wed Jul 15 2026 Fedora Release Engineering <releng@fedoraproject.org> - 2.2-5
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild
-
-* Wed Jun 03 2026 Python Maint <python-maint@redhat.com> - 2.2-4
-- Rebuilt for Python 3.15
-
-* Fri Jan 16 2026 Fedora Release Engineering <releng@fedoraproject.org> - 2.2-3
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_44_Mass_Rebuild
-
-* Fri Jan 16 2026 Fedora Release Engineering <releng@fedoraproject.org> - 2.2-2
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_44_Mass_Rebuild
-
-* Mon Dec 29 2025 Pavel Raiskup <praiskup@redhat.com> - 2.2-1
-- new upstream release with F43 config
-
-* Fri Sep 19 2025 Python Maint <python-maint@redhat.com> - 2.1-6
-- Rebuilt for Python 3.14.0rc3 bytecode
-
-* Fri Aug 15 2025 Python Maint <python-maint@redhat.com> - 2.1-5
-- Rebuilt for Python 3.14.0rc2 bytecode
-
-* Wed Jul 23 2025 Fedora Release Engineering <releng@fedoraproject.org> - 2.1-4
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_43_Mass_Rebuild
-
-* Mon Jun 02 2025 Python Maint <python-maint@redhat.com> - 2.1-3
-- Rebuilt for Python 3.14
-
-* Thu Jan 16 2025 Fedora Release Engineering <releng@fedoraproject.org> - 2.1-2
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild
-
-* Tue Jan 14 2025 Ales Nezbeda <anezbeda@redhat.com> - 2.1-1
-- Update to 2.1
-- Support for RHEL 10
-
-* Wed Oct 2 2024 Ales Nezbeda <anezbeda@redhat.com> - 2.0-1
-- Update to 2.0
-- Refresh of build system
-- Change spec file so it follows fedora guidelines
-
 * Mon Sep 09 2024 Lumír Balhar <lbalhar@redhat.com> - 1.18-1
 - Update to 1.18
 
diff --git a/sources b/sources
index 09c25cc..31cfbee 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (distgen-2.4.tar.gz) = 18108e71463ea76844a79bd2478b4d1892e7b9779542ac1795e57d4ea3f9fbc33f5a5582493d0b33f16dfc2bb4ff0ab2f73e955a3052521af09472e6889f266b
+SHA512 (distgen-1.18.tar.gz) = ddc1c5b95e3c905eef851b550aa981a86d58e64d17f383807a000c83fc0fccd77d6095607d128d938708decbae3947d43eaf95dcff9b6bb4f4827318add55b58