diff --git a/load_sim_tools.sh b/load_sim_tools.sh
index 4570d68507b244cb2151766cd47655701e624b8c..73b43162f6295f99157647a54337e06b6e534295 100644
--- a/load_sim_tools.sh
+++ b/load_sim_tools.sh
@@ -6,39 +6,18 @@
 #usage           :source ./load_sim_tools.sh
 #==============================================================================
 
-echo "Downloading files..."
-
-wget https://object.cscs.ch/v1/AUTH_9c619ee75cab4993b1c4c86a37586357/test_spack/spack_20210601.tar.gz
-wget https://object.cscs.ch/v1/AUTH_9c619ee75cab4993b1c4c86a37586357/test_spack/spack_tmp_20210601.tar.gz
-wget https://object.cscs.ch/v1/AUTH_9c619ee75cab4993b1c4c86a37586357/test_spack/shared_libs.tar.gz
-
-echo "Extracting..."
-
-tar -xzvf spack_20210601.tar.gz
-tar -xzvf spack_tmp_20210601.tar.gz
-tar -xzvf shared_libs.tar.gz
-
-rm -f spack_20210601.tar.gz
-rm -f spack_tmp_20210601.tar.gz
-rm -f shared_libs.tar.gz
-
 echo "Setting up environment..."
 
-mv spack/ /opt/app-root/src/
-mv .spack /opt/app-root/src/
-mv shared_libs /opt/app-root/src/
-cd /opt/app-root/src
-
-source spack/share/spack/setup-env.sh
-export LD_LIBRARY_PATH=/opt/app-root/src/shared_libs:$LD_LIBRARY_PATH
+cp -r /srv/test-build/spack/.spack ~
+source /srv/test-build/spack/share/spack/setup-env.sh
 
 echo "Loading packages..."
 
-spack load -r python %gcc@9.3.1
-spack load -r py-numpy %gcc@9.3.1
-spack load -r arbor %gcc@9.3.1
-spack load -r neuron %gcc@9.3.1
-spack load -r nest %gcc@9.3.1
+spack load -r python %gcc@10.3.0
+spack load -r py-numpy %gcc@10.3.0
+spack load -r arbor %gcc@10.3.0
+spack load -r neuron %gcc@10.3.0
+spack load -r nest %gcc@10.3.0
 
 echo "Everything ready!"
 #echo "Starting Python..."