diff --git a/libzip.spec b/libzip.spec
new file mode 100644
index 00000000000..8488a658fb3
--- /dev/null
+++ b/libzip.spec
@@ -0,0 +1,25 @@
+### RPM external libzip 1.11.4
+Source: https://github.com/nih-at/libzip/releases/download/v%{realversion}/libzip-%{realversion}.tar.gz
+BuildRequires: cmake
+Requires: zlib zstd
+Requires: bz2lib
+
+%prep
+%setup -n %{n}-%{realversion}
+
+%build
+cmake \
+  -S %{_builddir}/%{n}-%{realversion} \
+  -B %{_builddir}/build \
+  -DCMAKE_INSTALL_PREFIX=%{i} \
+  -DCMAKE_PREFIX_PATH=%{cmake_prefix_path} \
+  -DENABLE_COMMONCRYPTO=OFF \
+  -DENABLE_GNUTLS=OFF \
+  -DENABLE_MBEDTLS=OFF \
+  -DENABLE_WINDOWS_CRYPTO=OFF \
+  -DBUILD_EXAMPLES=OFF \
+  -DBUILD_DOC=OFF
+
+make -C %{_builddir}/build %{makeprocesses}
+%install
+make -C %{_builddir}/build %{makeprocesses} install
\ No newline at end of file
diff --git a/openloops.spec b/openloops.spec
index 1f80d7fa310..6e40b199d10 100644
--- a/openloops.spec
+++ b/openloops.spec
@@ -50,7 +50,9 @@ done
 ./openloops libinstall openloops-user.coll
 
 %install
-mkdir %i/{lib,proclib}
+mkdir %i/{lib,proclib,include}
 cp lib/*.so %i/lib
 cp proclib/*.so %i/proclib
 cp proclib/*.info %i/proclib
+cp proclib/*.rinfo %i/proclib
+cp include/* %i/include
diff --git a/scram-tools.file/tools/libzip/libzip.xml b/scram-tools.file/tools/libzip/libzip.xml
new file mode 100644
index 00000000000..52ba4ea0c7f
--- /dev/null
+++ b/scram-tools.file/tools/libzip/libzip.xml
@@ -0,0 +1,10 @@
+<tool revision="1">
+<lib name="zip"/>
+    <client>
+        <environment name="LIBDIR" default="$TOOL_BASE/lib"/>
+        <environment name="INCLUDE" default="$TOOL_BASE/include"/>
+    </client>
+    <runtime name="PATH" value="$TOOL_BASE/bin" type="path"/>
+    <use name="zlib"/>
+    <use name="zstd"/>
+</tool>
diff --git a/scram-tools.file/tools/openloops/openloops.xml b/scram-tools.file/tools/openloops/openloops.xml
index 47833975599..9806bad297e 100644
--- a/scram-tools.file/tools/openloops/openloops.xml
+++ b/scram-tools.file/tools/openloops/openloops.xml
@@ -1,6 +1,7 @@
 <tool revision="3">
 <client>
 <environment name="LIBDIR" default="$TOOL_BASE/lib"/>
+<environment name="INCLUDE" default="$TOOL_BASE/include"/>
 <runtime name="CMS_OPENLOOPS_PREFIX" value="$TOOL_BASE" type="path"/>
 </client>
 </tool>
diff --git a/scram-tools.file/tools/sherpa3/sherpa3.xml b/scram-tools.file/tools/sherpa3/sherpa3.xml
new file mode 100644
index 00000000000..525ea58514d
--- /dev/null
+++ b/scram-tools.file/tools/sherpa3/sherpa3.xml
@@ -0,0 +1,31 @@
+<tool revision="3">
+  <lib name="SherpaMain"/>
+  <lib name="ToolsPhys"/>
+  <lib name="ToolsMath"/>
+  <lib name="ToolsYaml"/>
+  <lib name="ToolsOrg"/>
+  <lib name="SherpaSingleEvents"/>
+  <lib name="SherpaTools"/>
+  <client>
+    <environment name="BINDIR" default="$TOOL_BASE/bin"/>
+    <environment name="LIBDIR" default="$TOOL_BASE/lib64/SHERPA-MC3"/>
+    <environment name="INCLUDE" default="$TOOL_BASE/include/SHERPA-MC3"/>
+  </client>
+  <runtime name="CMSSW_FWLITE_INCLUDE_PATH" value="$TOOL_BASE/include" type="path"/>
+  <runtime name="SHERPA_SHARE_PATH" value="$TOOL_BASE/share/SHERPA-MC" type="path"/>
+  <runtime name="SHERPA_INCLUDE_PATH" value="$TOOL_BASE/include/SHERPA-MC3" type="path"/>
+  <runtime name="ROOT_INCLUDE_PATH" value="$INCLUDE" type="path"/>
+  <runtime name="SHERPA_LIBRARY_PATH" value="$TOOL_BASE/lib64/SHERPA-MC3" type="path"/>
+  <runtime name="SHERPA_CMAKE_PATH" value="$TOOL_BASE/share/SHERPA-MC" type="path"/>
+  <use name="HepMC3"/>
+  <use name="lhapdf"/>
+  <use name="blackhat"/>
+  <use name="fastjet"/>
+  <use name="openmpi"/>
+  <use name="rivet"/>
+  <use name="pythia8"/>
+  <use name="libzip"/>
+  <ifarchitecture name="!ppc64le">
+    <use name="openloops"/>
+  </ifarchitecture>
+</tool>
diff --git a/sherpa-versioning.patch b/sherpa-versioning.patch
new file mode 100644
index 00000000000..b083f1ced84
--- /dev/null
+++ b/sherpa-versioning.patch
@@ -0,0 +1,31 @@
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -110,7 +110,7 @@ message(STATUS "SHERPA: CMAKE_CXX_STANDARD=${CMAKE_CXX_STANDARD}")
+ endif()
+ message(STATUS "SHERPA: CMAKE_CXX_STANDARD=${CMAKE_CXX_STANDARD}")
+ if (SHERPA_ENABLE_VERSIONING)
+-  set (VERSIONING "-${EXTERNAL_VERSION_STRING}")
++  set (VERSIONING "${SHERPA_VERSION_MAJOR}")
+ else()
+   set (VERSIONING "")
+ endif()
+@@ -966,7 +966,7 @@ configure_file(${CMAKE_CURRENT_SOURCE_DIR}/Examples/V_plus_Jets/LHC_WJets/CMake
+ if (SHERPA_ENABLE_UFO)
+ SET(SHERPA_CMAKE_CONFIG_DIR ${CMAKE_INSTALL_PREFIX}/share/SHERPA-MC/)
+ configure_file(${CMAKE_CURRENT_SOURCE_DIR}/MODEL/UFO/src/ufo_interface/parser.py.in ${CMAKE_CURRENT_BINARY_DIR}/MODEL/UFO/src/ufo_interface/parser.py @ONLY)
+-configure_file(${CMAKE_CURRENT_SOURCE_DIR}/MODEL/UFO/bin/Sherpa-generate-model.in ${CMAKE_CURRENT_BINARY_DIR}/MODEL/UFO/bin/Sherpa-generate-model @ONLY)
++configure_file(${CMAKE_CURRENT_SOURCE_DIR}/MODEL/UFO/bin/Sherpa-generate-model.in ${CMAKE_CURRENT_BINARY_DIR}/MODEL/UFO/bin/Sherpa${VERSIONING}-generate-model @ONLY)
+ if (NOT SHERPA_ENABLE_PYTHON AND SHERPA_ENABLE_TESTING)
+     message(FATAL_ERROR "SHERPA: UFO model generation tests requires Python Addons!")
+ endif()
+--- a/MODEL/UFO/CMakeLists.txt
++++ b/MODEL/UFO/CMakeLists.txt
+@@ -17,7 +17,7 @@ file(COPY src/ufo_interface DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/src/)
+ file(COPY src/opt_einsum/opt_einsum DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/src/)
+ install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/src/
+         DESTINATION ${SHERPA_Python_SITEARCH}/)
+-install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/bin/Sherpa-generate-model
++install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/bin/Sherpa${VERSIONING}-generate-model
+         DESTINATION ${CMAKE_INSTALL_BINDIR})
+
+ if(SHERPA_ENABLE_TESTING)
diff --git a/sherpa.spec b/sherpa.spec
index 293f2d15b3b..a3b3bcfe986 100644
--- a/sherpa.spec
+++ b/sherpa.spec
@@ -1,5 +1,5 @@
 ### RPM external sherpa 2.2.16
-Source: git+https://gitlab.com/sherpa-team/sherpa.git?obj=master/v%{realversion}&export=%{n}-%{realversion}&output=/%{n}-%{realversion}.tgz 
+Source: git+https://gitlab.com/sherpa-team/sherpa.git?obj=master/v%{realversion}&export=%{n}-%{realversion}&output=/%{n}-%{realversion}.tgz
 Requires: hepmc lhapdf blackhat sqlite python3 fastjet openmpi hepmc3
 BuildRequires: mcfm swig autotools
 Patch0: sherpa-2.2.16-hepmcshort
diff --git a/sherpa3.spec b/sherpa3.spec
new file mode 100644
index 00000000000..426d43a97e1
--- /dev/null
+++ b/sherpa3.spec
@@ -0,0 +1,48 @@
+### RPM external sherpa3 3.0.4
+Source: git+https://gitlab.com/sherpa-team/sherpa.git?obj=master/v%{realversion}&export=%{n}-%{realversion}&output=/%{n}-%{realversion}.tgz
+Requires: hepmc3 lhapdf blackhat fastjet openmpi rivet pythia8 libzip
+BuildRequires: cmake swig
+
+Patch0: sherpa-versioning
+
+%{!?without_openloops:Requires: openloops}
+
+%prep
+%setup -q -n %{n}-%{realversion}
+%patch0 -p1
+
+%build
+rm -rf build && mkdir build
+
+cmake -S . -B build \
+  -DCMAKE_INSTALL_PREFIX=%i \
+  -DSHERPA_ENABLE_VERSIONING=ON \
+  -DEXTERNAL_VERSION_STRING=3 \
+  -DSHERPA_ENABLE_MPI=ON -DCMAKE_C_COMPILER=mpicc -DCMAKE_CXX_COMPILER=mpicxx -DCMAKE_Fortran_COMPILER=mpifort \
+  -DSHERPA_ENABLE_ANALYSIS=ON \
+  -DSHERPA_ENABLE_EXAMPLES=ON \
+  -DSHERPA_ENABLE_LIBZIP=ON -DLibZip_DIR=$LIBZIP_ROOT \
+  -DSHERPA_ENABLE_GZIP=ON \
+  -DSHERPA_ENABLE_HEPMC3=ON -DHEPMC3_DIR=$HEPMC3_ROOT -DSHERPA_ENABLE_HEPMC3_ROOT=OFF \
+  -DSHERPA_ENABLE_LHAPDF=ON -DLHAPDF_DIR=$LHAPDF_ROOT -DSHERPA_ENABLE_INTERNAL_PDFS=OFF \
+  -DSHERPA_ENABLE_BLACKHAT=ON -DBLACKHAT_DIR=$BLACKHAT_ROOT \
+  ${OPENLOOPS_ROOT+-DSHERPA_ENABLE_OPENLOOPS=ON -DOPENLOOPS_DIR=$OPENLOOPS_ROOT} \
+  -DSHERPA_ENABLE_ROOT=OFF \
+  -DSHERPA_ENABLE_PYTHIA8=ON -DPYHIA8_DIR=$PYTHIA8_ROOT \
+  -DSHERPA_ENABLE_RECOLA=OFF \
+  -DSHERPA_ENABLE_RIVET=ON -DRIVET_DIR=$RIVET_ROOT \
+  -DSHERPA_ENABLE_EWSUD=ON \
+  -DSHERPA_ENABLE_PYTHON=ON \
+  -DSHERPA_ENABLE_UFO=ON \
+  -DSHERPA_ENABLE_THREADING=ON \
+  -DSHERPA_ENABLE_DIHIGGS=OFF \
+  -DSHERPA_ENABLE_MADLOOP=OFF \
+  -DSHERPA_ENABLE_MCFM=OFF \
+  -DSHERPA_ENABLE_TESTING=OFF \
+  -DSHERPA_ENABLE_INTEGRATION_TESTS=OFF \
+  -DSHERPA_ENABLE_BINRELOC=OFF
+cmake --build build %{makeprocesses}
+
+%install
+cmake --install build
+sed -i -e 's|^#!/.*|#!/usr/bin/env python3|' %{i}/bin/Sherpa3-generate-model