diff --git a/run-caffluxsyst/install_caffluxsyst.sh b/run-caffluxsyst/install_caffluxsyst.sh
new file mode 100755
index 0000000..8aaf6bf
--- /dev/null
+++ b/run-caffluxsyst/install_caffluxsyst.sh
@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+
+export ND_PRODUCTION_RUNTIME=${ND_PRODUCTION_RUNTIME:-SHIFTER}
+
+export ND_PRODUCTION_CONTAINER=${ND_PRODUCTION_CONTAINER:-$ND_PRODUCTION_CONTAINER_CAF}
+export ND_PRODUCTION_CONTAINER=${ND_PRODUCTION_CONTAINER:-fermilab/fnal-wn-sl7:latest}
+
+source ../util/reload_in_container.inc.sh
+
+set +o errexit
+
+if [[ -d install ]]; then
+    echo "caffluxsyst appears to be installed already."
+    echo "To force a reinstall, please delete the directory run-caffluxsyst/install"
+    exit
+fi
+
+mkdir install
+cd install
+
+. /cvmfs/dune.opensciencegrid.org/products/dune/setup_dune.sh
+setup cmake v3_27_4
+
+# Should maybe checkout a tag here the first time we run real production.
+git clone https://github.com/DUNE/duneanafluxtools.git
+
+# The duneanaobj version is defined by duneanafluxtools itself (its
+# DUNE_ANAOBJ_BRANCH CMake default), not by ND_Production. Read it out so we
+# don't have to duplicate/hardcode the version here.
+duneanaobj_version=$(sed -n 's/^\s*set(DUNE_ANAOBJ_BRANCH \(.*\))/\1/p' duneanafluxtools/CMakeLists.txt)
+setup duneanaobj "$duneanaobj_version" -q "e20:prof"
+
+mkdir duneanafluxtools/build
+cd duneanafluxtools/build
+
+cmake ../
+make install
+ldd bin/caffluxweighter
diff --git a/run-caffluxsyst/run_caffluxsyst.sh b/run-caffluxsyst/run_caffluxsyst.sh
new file mode 100755
index 0000000..08b0cf5
--- /dev/null
+++ b/run-caffluxsyst/run_caffluxsyst.sh
@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+
+export ND_PRODUCTION_CONTAINER=${ND_PRODUCTION_CONTAINER:-fermilab/fnal-wn-sl7:latest}
+
+source ../util/reload_in_container.inc.sh
+
+# Setup environment.
+setup() {
+    . /cvmfs/dune.opensciencegrid.org/products/dune/setup_dune.sh
+
+    source "${PWD}"/install/duneanafluxtools/build/bin/setup.duneanafluxtools.sh
+}
+
+set +o errexit
+setup
+set -o errexit
+
+# Must go after setup.
+source ../util/init.inc.sh
+
+inDir=${ND_PRODUCTION_OUTDIR_BASE}/run-cafmaker/$ND_PRODUCTION_IN_NAME
+inName=$ND_PRODUCTION_IN_NAME.$globalIdx
+inFile=$(realpath "$inDir"/CAF/$subDir/${inName}.CAF.root)
+
+outFile=$tmpOutDir/${outName}.CAF.root
+rm -f "$outFile"
+
+run caffluxweighter "$inFile" "$outFile"
+
+cafOutDir=$outDir/CAF/$subDir
+mkdir -p "$cafOutDir"
+mv "$outFile" "$cafOutDir"