diff --git a/definition-files/runscript b/definition-files/runscript
index e57112314385a86de5e5d816804518f4a2ff8430..0cff77c05ababa734cc87839cca1ca52dd0ee55d 100644
--- a/definition-files/runscript
+++ b/definition-files/runscript
@@ -1,12 +1,17 @@
 #!/bin/sh
 # overwrite any existing runscript
-# add IMGW customized PROMPT_COMMAND
+# add IMGW customized PROMPT_COMMAND -> PS1
 if [ $# -gt 0 ]; then
     # run cmd line options
     exec "$@"
 else
     # interactive
-    echo "Welcome inside an IMGW container!"
-    echo "Get help: singularity run-help $SINGULARITY_NAME"
+    echo "[OUTSIDE] run: singularity run-help $SINGULARITY_NAME"
+    # Look for apps?
+    if [ -d /scif/apps ]; then
+        echo "[OUTSIDE] Available Apps: $(ls /scif/apps)"
+        echo "[OUTSIDE] run: singularity run-help --app [] $SINGULARITY_NAME"
+    fi
+    echo "[INSIDE] Welcome inside an IMGW container!"
     exec /.singularity.d/actions/shell "$@"
 fi
\ No newline at end of file
diff --git a/models/WRF/Singularity.dev b/models/WRF/Singularity.dev
index 0aa44f27e2657415a67f4687c44fd9f04da3a7ca..9cacfeb19421ec1a4a0ea8e173373bea894582df 100644
--- a/models/WRF/Singularity.dev
+++ b/models/WRF/Singularity.dev
@@ -11,8 +11,13 @@ WRF_VERSION=4.4.1
 if [ $# -ne 0 ]; then
         WRF_VERSION=$1
 fi
-echo "[WRF.dev] Downloading WRF $WRF_VERSION from github:"
-curl -SL -o WRF-${WRF_VERSION}.tar.gz https://github.com/wrf-model/WRF/releases/download/v${WRF_VERSION}/v${WRF_VERSION}.tar.gz
+if [ ! -f WRF-${WRF_VERSION}.tar.gz ]; then
+        echo "[wrf.dev] Downloading WRF $WRF_VERSION from github:"
+        curl -SL -o WRF-${WRF_VERSION}.tar.gz https://github.com/wrf-model/WRF/releases/download/v${WRF_VERSION}/v${WRF_VERSION}.tar.gz
+else
+        echo "[wrf.dev] Source found: WRF-${WRF_VERSION}.tar.gz"
+fi
+
 
 %apphelp downloadwrf
 [WRF] APP: downloadwrf
@@ -26,8 +31,12 @@ WPS_VERSION=4.4
 if [ $# -ne 0 ]; then
         WPS_VERSION=$1
 fi
-echo "[WRF.dev] Downloading WPS $WPS_VERSION from github:"
-curl -SL -o WPS-${WPS_VERSION}.tar.gz https://github.com/wrf-model/WPS/archive/refs/tags/v${WPS_VERSION}.tar.gz
+if [ ! -f  WPS-${WPS_VERSION}.tar.gz ]; then
+        echo "[wrf.dev] Downloading WPS $WPS_VERSION from github:"
+        curl -SL -o WPS-${WPS_VERSION}.tar.gz https://github.com/wrf-model/WPS/archive/refs/tags/v${WPS_VERSION}.tar.gz
+else
+        echo "[wrf.dev] Source found: WPS-${WPS_VERSION}.tar.gz"
+fi
 
 %apphelp downloadwps
 [WRF] APP: downloadwps
diff --git a/models/WRF/Singularity.wrf b/models/WRF/Singularity.wrf
index 62f467ad2b8750391999b157e8b46b0175480d24..9406e9e578afd1cd214758cbfa9a831c39f8ae89 100644
--- a/models/WRF/Singularity.wrf
+++ b/models/WRF/Singularity.wrf
@@ -1,5 +1,5 @@
 Bootstrap: localimage
-From: wrf.dev
+From: wrf.dev.sif
 Stage: build
 
 # Two Stage Build of WRF
@@ -12,8 +12,8 @@ Stage: build
 maintainer IT-IMGW <it.img-wien@univie.ac.at>
 
 %files
-WRF*.tar.gz /wrf
-WPS*.tar.gz /wrf
+WRF*.tar.gz /wrf/WRF.tar.gz
+WPS*.tar.gz /wrf/WPS.tar.gz
 
 %post
 # Build a WRF release from the sandbox
@@ -24,10 +24,11 @@ JASPERLIB=/usr/lib64/
 NETCDF=/usr/lib64/openmpi/
 
 mkdir -vp /wrf/WRF /wrf/WPS \
-    && cat /wrf/WRF*.tar.gz | tar --no-same-owner --strip-components=1 -zxC /wrf/WRF \
-    && cat /wrf/WPS*.tar.gz | tar --no-same-owner --strip-components=1 -zxC /wrf/WPS
+    && cat /wrf/WRF.tar.gz | tar --no-same-owner --strip-components=1 -zxC /wrf/WRF \
+    && cat /wrf/WPS.tar.gz | tar --no-same-owner --strip-components=1 -zxC /wrf/WPS
 
 # Build WRF with Option 34 and 1
+# GCC with openmpi
 cd /wrf/WRF \
     && ./configure <<< $'34\r1\r' \
     && sed -i -e '/^DM_CC/ s/$/ -DMPI2_SUPPORT/' ./configure.wrf \
@@ -49,7 +50,7 @@ mkdir -p /wrf/run /wrf/bin \
     && cp /wrf/WPS/namelist* /wrf/run
 
 Bootstrap: localimage
-From: wrf.dev
+From: wrf.dev.sif
 Stage: final
 
 %files from build
diff --git a/models/WRF/Singularity.tmp b/models/WRF/Singularity.wrf.serial
similarity index 75%
rename from models/WRF/Singularity.tmp
rename to models/WRF/Singularity.wrf.serial
index 03a4a5a94a9b33cddc79b87cff1cf546366fef7b..1b7afdcd25b318195c95233e076df1eb60e8b240 100644
--- a/models/WRF/Singularity.tmp
+++ b/models/WRF/Singularity.wrf.serial
@@ -1,5 +1,5 @@
 Bootstrap: localimage
-From: sandbox.wrf.dev
+From: wrf.dev.sif
 Stage: build
 
 # Two Stage Build of WRF
@@ -11,6 +11,10 @@ Stage: build
 %labels
 maintainer IT-IMGW <it.img-wien@univie.ac.at>
 
+%files
+WRF*.tar.gz /wrf/WRF.tar.gz
+WPS*.tar.gz /wrf/WPS.tar.gz
+
 %post
 # Build a WRF release from the sandbox
 WRF_BUILD_TARGET=em_real
@@ -19,9 +23,14 @@ JASPERINC=/usr/include/jasper/
 JASPERLIB=/usr/lib64/
 NETCDF=/usr/lib64/openmpi/
 
+mkdir -vp /wrf/WRF /wrf/WPS \
+    && cat /wrf/WRF.tar.gz | tar --no-same-owner --strip-components=1 -zxC /wrf/WRF \
+    && cat /wrf/WPS.tar.gz | tar --no-same-owner --strip-components=1 -zxC /wrf/WPS
+
 # Build WRF with Option 34 and 1
+# GCC with openmpi
 cd /wrf/WRF \
-    && ./configure <<< $'34\r1\r' \
+    && ./configure <<< $'2\r1\r' \
     && sed -i -e '/^DM_CC/ s/$/ -DMPI2_SUPPORT/' ./configure.wrf \
     && sed -i '/BUILD_RRTMG_FAST/d' ./configure.wrf \
     && /bin/csh ./compile $WRF_BUILD_TARGET 2>&1 | tee compile_wrf_arw_opt34.1.log 
@@ -41,27 +50,33 @@ mkdir -p /wrf/run /wrf/bin \
     && cp /wrf/WPS/namelist* /wrf/run
 
 Bootstrap: localimage
-From: sandbox.wrf.dev
+From: wrf.dev.sif
 Stage: final
 
 %files from build
     # Copy only executables from WRF to directory
     /wrf/bin /wrf/bin
     /wrf/run /wrf/run
+    # WPS
     /wrf/WPS/link_grib.csh /wrf/bin
     /wrf/WPS/ungrib/Variable_Tables /wrf/run
+    /wrf/WPS/geogrid/GEOGRID* /wrf/run/geogrid/
+    /wrf/WPS/geogrid/gribmap.txt /wrf/run/geogrid/
+    /wrf/WPS/metgrid/METGRID* /wrf/run/metgrid/
+    /wrf/WPS/metgrid/gribmap.txt /wrf/run/metgrid/
+    # Log files
     /wrf/WRF/compile_wrf_arw_opt34.1.log /wrf
     /wrf/WPS/compile_wps.log /wrf
 
 %files
-    runscript /.singularity.d/runscript
-    run-help /.singularity.d/runscript.help
+    ./scripts/runscript /.singularity.d/runscript
+    ./scripts/run-help /.singularity.d/runscript.help
 
 %post
     # compress
     gzip -f /wrf/*.log
-    # remove src tree (is insidie sandbox)
-    rm -rf /wrf/WRF /wrf/WPS
+    # remove src tree (is inside sandbox)
+    # rm -rf /wrf/WRF /wrf/WPS
     # Strip the binaries to reduce the size of the image
     find -L /wrf/* -type f -exec readlink -f '{}' \; | \
         xargs file -i | \
diff --git a/models/WRF/scripts/runscript b/models/WRF/scripts/runscript
index 76d61f77a6403deef5f72663b30967dc852404d3..fa1fde0f5cf00d00311b4888e1b89c88e496e2f0 100644
--- a/models/WRF/scripts/runscript
+++ b/models/WRF/scripts/runscript
@@ -6,12 +6,12 @@ if [ $# -gt 0 ]; then
         echo "[WRF] Copying default run files here"
         cp -rvu /wrf/run/* .
         exit 0
-    elif [ ! -f namelist.input ]; then
-        # copy necessary files to current directory
-        echo "[WRF] Updating default/missing run files here"
-        cp -rvu /wrf/run/* .
-    else
-        echo "[WRF] no automatic copying"
+    # elif [ ! -f namelist.input ]; then
+    #     # copy necessary files to current directory
+    #     echo "[WRF] Updating default/missing run files here"
+    #     cp -rvu /wrf/run/* .
+    # else
+    #     echo "[WRF] no automatic copying"
     fi
     # run cmd line options
     echo "[WRF] Executing"