diff --git a/LCG_103/x86_64_v3-centos7-clang12+detdesc+cuda11_8-opt.cmake b/LCG_103/x86_64_v3-centos7-clang12+detdesc+cuda11_8-opt.cmake
new file mode 100644
index 0000000000000000000000000000000000000000..1e235a8c5a354e4281ac9b7c6f7ce969f9e76057
--- /dev/null
+++ b/LCG_103/x86_64_v3-centos7-clang12+detdesc+cuda11_8-opt.cmake
@@ -0,0 +1,31 @@
+###############################################################################
+# (c) Copyright 2023 CERN for the benefit of the LHCb Collaboration           #
+#                                                                             #
+# This software is distributed under the terms of the GNU General Public      #
+# Licence version 3 (GPL Version 3), copied verbatim in the file "COPYING".   #
+#                                                                             #
+# In applying this licence, CERN does not waive the privileges and immunities #
+# granted to it by virtue of its status as an Intergovernmental Organization  #
+# or submit itself to any jurisdiction.                                       #
+###############################################################################
+
+# DO NOT EDIT: File generated by new_lcg_version.py
+
+# Make sure the toolchain is included only once
+# (to avoid double changes to the environment)
+include_guard(GLOBAL)
+message(STATUS "Entering ${CMAKE_CURRENT_LIST_FILE}")
+
+if(NOT DEFINED LHCB_PLATFORM)
+    set(LHCB_PLATFORM x86_64_v3-centos7-clang12+detdesc+cuda11_8-opt)
+endif()
+if(NOT DEFINED LCG_ARCHITECTURE)
+    set(LCG_ARCHITECTURE x86_64_v3)
+endif()
+if(NOT DEFINED LCG_OPTIMIZATION)
+    set(LCG_OPTIMIZATION opt)
+endif()
+set(USE_DD4HEP FALSE CACHE BOOL "")
+set(TARGET_DEVICE "CUDA" CACHE STRING "")
+include(${CMAKE_CURRENT_LIST_DIR}/x86_64-centos7-clang12-opt.cmake)
+list(PREPEND CMAKE_PREFIX_PATH /cvmfs/sft.cern.ch/lcg/releases/cuda/11.8-83fe0/x86_64-centos7-gcc11-opt)