diff --git a/README.md b/README.md
index f0b1a9f4b..d75e8fb98 100644
--- a/README.md
+++ b/README.md
@@ -128,4 +128,12 @@ If you want to implement your own version of the chip, your tool and license com
 Startups can expect to spend more than $1 million on CAD tools to get a chip to market. Commercial CAD tools are not realistically available to individuals without a university or company connection.
 
 
+## Adding Cron Job for nightly builds
+
+If you want to add a cronjob you can do the following:
+1) `crontab -e`
+2) add this code:
+```
+0 3 * * * BASH_ENV=~/.bashrc bash -l -c "PATH_TO_CVW/cvw/bin/wrapper_nightly_runs.sh > PATH_TO_LOG_FOLDER/cron.log"
+```
 
diff --git a/setup_host.sh b/setup_host.sh
new file mode 100644
index 000000000..55854a71c
--- /dev/null
+++ b/setup_host.sh
@@ -0,0 +1,58 @@
+#!/bin/bash
+
+# setup.sh
+# David_Harris@hmc.edu and kekim@hmc.edu 1 December 2021
+# Set up tools for riscv-wally
+
+echo "Executing Wally setup.sh"
+
+# Path to Wally repository
+WALLY=$(dirname ${BASH_SOURCE[0]:-$0})
+export WALLY=$(cd "$WALLY" && pwd)
+echo \$WALLY set to ${WALLY}
+
+# Path to RISC-V Tools
+export RISCV=/opt/riscv   # change this if you installed the tools in a different location
+
+# Tools
+# GCC
+#export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$RISCV/riscv-gnu-toolchain/lib:$RISCV/riscv-gnu-toolchain/riscv64-unknown-elf/lib
+#export PATH=$PATH:$RISCV/riscv-gnu-toolchain/bin:$RISCV/riscv-gnu-toolchain/riscv64-unknown-elf/bin      # GCC tools
+# Spike
+#export LD_LIBRARY_PATH=$RISCV/lib:$LD_LIBRARY_PATH
+export PATH=$PATH:$RISCV/bin
+# utility functions in Wally repository
+export PATH=$WALLY/bin:$PATH    
+# Verilator
+export PATH=$RICKV/verilator:$PATH # Change this for your path to Verilator
+# ModelSim/Questa (vsim)
+# Note: 2022.1 complains on cache/sram1p1r1w about StoredData cannot be driven by multiple always_ff blocks.  Ues 2021.2 for now
+#export PATH=/cad/mentor/questa_sim-2022.1_1/questasim/bin:$PATH    # Change this for your path to Modelsim 
+#export PATH=/cad/mentor/questa_sim-2021.2_1/questasim/bin:$PATH    # Change this for your path to Modelsim, or delete
+#export MGLS_LICENSE_FILE=1717@solidworks.eng.hmc.edu # Change this to your Siemens license server
+#export PATH=/cad/synopsys/SYN/bin:$PATH  # Change this for your path to Design Compiler
+#export SNPSLMD_LICENSE_FILE=27020@134.173.38.184 # Change this to your license manager file
+
+# Imperas; put this in if you are using it
+#export PATH=$RISCV/imperas-riscv-tests/riscv-ovpsim-plus/bin/Linux64:$PATH  
+#export LD_LIBRARY_PATH=$RISCV/imperas_riscv_tests/riscv-ovpsim-plus/bin/Linux64:$LD_LIBRARY_PATH # remove if no imperas
+
+export MODSIM=/opt/ModelSim/questasim
+export PATH=$PATH:$MODSIM/bin
+export LD_LIBRARY_PATH=/usr/lib:/lib
+export MGC_DOC_PATH=$MODSIM/docs
+export MGC_PDF_READER=evince
+export MGC_HTML_BROWSER=firefox
+export MGLS_LICENSE_FILE=1717@trelaina.ecen.okstate.edu
+export IMPERASD_LICENSE_FILE=2700@trelaina.ecen.okstate.edu
+
+export IDV=$RISCV/ImperasDV-OpenHW
+if [ -e "$IDV" ]; then
+#    echo "Imperas exists"
+    export IMPERAS_HOME=$IDV/Imperas
+    export IMPERAS_PERSONALITY=CPUMAN_DV_ASYNC
+    export ROOTDIR=${WALLY}/..
+    source ${IMPERAS_HOME}/bin/setup.sh
+    setupImperas ${IMPERAS_HOME}
+    export PATH=$IDV/scripts/cvw:$PATH
+fi