diff --git a/.github/workflows/tests_scripts.yml b/.github/workflows/tests_scripts.yml
index a369f4f187..4e44351f27 100644
--- a/.github/workflows/tests_scripts.yml
+++ b/.github/workflows/tests_scripts.yml
@@ -35,6 +35,22 @@ jobs:
       run: |
         ./install_apptainer_ubuntu.sh
 
+#    - name: download NESSI config package
+#      run: |
+#        wget https://github.com/NorESSI/filesystem-layer/releases/download/latest/cvmfs-config-nessi_latest_all.deb
+#
+#    - name: install NESSI config package
+#      run: |
+#        sudo apt install cvmfs-config-nessi_latest_all.deb
+#
+    - name: prepare repos info for NESSI
+      run: |
+        curl -Ls https://github.com/NorESSI/filesystem-layer/tarball/v0.4.1 | tar xzf - --strip-components=1 --no-wildcards-match-slash --wildcards '*/repos/'
+
+    - name: list available repos
+      run: |
+        ./eessi_container.sh --list-repos
+
     - name: test load_easybuild_module.sh script
       run: |
         # bind current directory into container as /software-layer
@@ -72,7 +88,7 @@ jobs:
 
           # run wrapper script + capture & check output
           out="${PWD}/eb-${EB_VERSION}.out"
-          ./eessi_container.sh --access rw --mode run --verbose /software-layer/run_in_compat_layer_env.sh /software-layer/eb-${EB_VERSION}.sh 2>&1 | tee ${out}
+          ./eessi_container.sh --access rw --mode run --verbose --repository nessi.no-2023.06-software /software-layer/run_in_compat_layer_env.sh /software-layer/eb-${EB_VERSION}.sh 2>&1 | tee ${out}
           pattern="^This is EasyBuild ${EB_VERSION} "
           grep "${pattern}" ${out} || (echo "Pattern '${pattern}' not found in output!" && exit 1)
         done
@@ -83,7 +99,7 @@ jobs:
           export SINGULARITY_BIND="${PWD}:/software-layer"
           # force using x86_64/generic, to avoid triggering an installation from scratch
           sed -i "s@./EESSI-install-software.sh@\"export EESSI_SOFTWARE_SUBDIR_OVERRIDE='x86_64/generic'; ./EESSI-install-software.sh\"@g" install_software_layer.sh
-          ./eessi_container.sh --mode run --verbose /software-layer/install_software_layer.sh
+          ./eessi_container.sh --mode run --verbose --repository nessi.no-2023.06-software /software-layer/install_software_layer.sh
 
     - name: test create_directory_tarballs.sh script
       run: |
@@ -91,6 +107,6 @@ jobs:
           export SINGULARITY_BIND="${PWD}:/software-layer"
           # scripts need to be copied to /tmp,
           # since create_directory_tarballs.sh must be accessible from within build container
-          ./eessi_container.sh --mode run --verbose /software-layer/create_directory_tarballs.sh 2023.06
+          ./eessi_container.sh --mode run --verbose --repository nessi.no-2023.06-software /software-layer/create_directory_tarballs.sh 2023.06
           # check if tarballs have been produced
           ls -l *.tar.gz