diff --git a/cases/icon-test-euler/config.yaml b/cases/icon-test-euler/config.yaml
index 28fd1269..b6f94b33 100644
--- a/cases/icon-test-euler/config.yaml
+++ b/cases/icon-test-euler/config.yaml
@@ -9,7 +9,7 @@ restart_step: PT6H
 startdate: 2018-01-01T00:00:00Z
 enddate: 2018-01-01T12:00:00Z
 
-eccodes_dir: ./input/eccodes_definitions
+eccodes_dir: ./ext/spack-c2sm/spack/opt/spack/linux-ubuntu22.04-broadwell/gcc-12.2.0//share/eccodes/definitions
 iconremap_bin: ./ext/icontools/icontools/iconremap
 iconsub_bin: ./ext/icontools/icontools/iconsub
 latbc_filename: ifs_201801<d><h>_lbc.nc
diff --git a/env/environment.yml b/env/environment.yml
index 98b90e44..0070da5b 100644
--- a/env/environment.yml
+++ b/env/environment.yml
@@ -1,7 +1,6 @@
 name: proc-chain
 channels:
   - conda-forge
-  - defaults
 dependencies:
   - python=3.11
   - cdo
diff --git a/jenkins/Jenkinsfile b/jenkins/Jenkinsfile
index 19875218..ba296f34 100644
--- a/jenkins/Jenkinsfile
+++ b/jenkins/Jenkinsfile
@@ -29,8 +29,10 @@ pipeline {
                         sh 'wget -O ${WORKSPACE}/miniconda.sh https://repo.continuum.io/miniconda/Miniconda3-latest-Linux-x86_64.sh'
                         sh 'rm -fr ${WORKSPACE}/miniconda'
                         sh 'bash miniconda.sh -b -p $WORKSPACE/miniconda'
+                        sh 'conda config --remove channels defaults'
                         sh 'conda config --set always_yes yes --set changeps1 no'
                         sh 'conda config --add channels conda-forge'
+                        sh 'conda config --set channel_priority strict'
                         sh 'conda update -n base -c defaults conda'
                         sh 'conda env create -f env/environment.yml'
                         sh '''source ${WORKSPACE}/miniconda/etc/profile.d/conda.sh
diff --git a/jenkins/scripts/build_icon-art.sh b/jenkins/scripts/build_icon-art.sh
deleted file mode 100755
index 68d09fd2..00000000
--- a/jenkins/scripts/build_icon-art.sh
+++ /dev/null
@@ -1,41 +0,0 @@
-#!/bin/bash
-
-set -e -x
-
-# Check if script is called correctly
-[[ $(git rev-parse --show-toplevel 2>/dev/null) = $(pwd) ]] || error "$0 not launched from toplevel of repository"
-
-source jenkins/scripts/common.sh
-
-BRANCH=art
-GIT_REMOTE=git@github.com:C2SM/icon.git
-MODEL=icon-art
-
-pushd ext
-
-# Clone the repo if not already existing
-if [[ ! -d "${MODEL}" ]]; then
-    git clone --depth 1 --recurse-submodules -b ${BRANCH} ${GIT_REMOTE} ${MODEL}
-fi
-
-pushd ${MODEL}
-
-if [[ $(hostname) == eu-* ]]; then
-    ./jenkins/scripts/jenkins_euler.sh -b -fc gcc --configure euler.cpu.gcc.O2
-elif [[ $(hostname) == daint* ]]; then
-    SPACK_TAG=`cat config/cscs/SPACK_TAG_DAINT`
-    . ../spack-c2sm/setup-env.sh
-    spack env activate -d config/cscs/spack/${SPACK_TAG}/daint_cpu_nvhpc
-    spack install -u build
-elif [[ $(hostname) == balfrin* ]]; then
-    SPACK_TAG=`cat config/cscs/SPACK_TAG_BALFRIN`
-    . ../spack-c2sm/setup-env.sh
-    spack env activate -d config/cscs/spack/${SPACK_TAG}/daint_cpu_nvhpc
-    spack install -u build
-else
-    error "Unknown hostname: $(hostname)"
-fi
-
-popd
-
-popd
diff --git a/jenkins/scripts/jenkins.sh b/jenkins/scripts/jenkins.sh
index 8fbe49ff..3eb4870b 100755
--- a/jenkins/scripts/jenkins.sh
+++ b/jenkins/scripts/jenkins.sh
@@ -21,11 +21,12 @@ set -e -x
 # Check if we are on Euler
 if [[ $(hostname) == eu-* ]]; then
     host=euler
-elif [[ $(hostname) == daint* ]]; then
-    host=daint
+elif [[ $(hostname) == santis* ]]; then
+    host=santis
+else
+    echo "Unknown hostname: $(hostname)"
 fi
 
-
 # Activate conda environment
 eval "$(conda shell.bash hook)"
 conda activate proc-chain
@@ -85,14 +86,6 @@ else
   ./jenkins/scripts/build_icon.sh
 fi
 
-# Build ICON-ART
-if [[ -f ext/icon-art/bin/icon ]]; then
-  echo icon-art executable already exists - skipping build.
-else
-  echo building icon-art...
-  ./jenkins/scripts/build_icon-art.sh
-fi
-
 # Test COSMO-GHG
 if [[ "$host" == euler ]]; then
   echo skipping cosmo-ghg test on Euler...
diff --git a/jenkins/scripts/setup-spack.sh b/jenkins/scripts/setup-spack.sh
index 76ed1a11..ccc10fde 100755
--- a/jenkins/scripts/setup-spack.sh
+++ b/jenkins/scripts/setup-spack.sh
@@ -11,15 +11,13 @@ SPACK_TAG_COSMO=v0.18.1.12
 
 if [[ $(hostname) == eu-* ]]; then
     source /cluster/apps/local/env2lmod.sh
-    module load git/2.31.1
-    SPACK_TAG=main
-elif [[ $(hostname) == daint* ]]; then 
-    git clone --depth 1 git@github.com:C2SM/icon.git icon-tag
-    SPACK_TAG=`cat icon-tag/config/cscs/SPACK_TAG_DAINT`
+    module load git
+    git clone --depth 1 git@gitlab.dkrz.de:icon/icon-model.git icon-tag
+    SPACK_TAG=`cat icon-tag/config/ethz/SPACK_TAG_EULER`
     rm -fr icon-tag
-elif [[ $(hostname) == balfrin* ]]; then 
-    git clone --depth 1 git@github.com:C2SM/icon.git icon-tag
-    SPACK_TAG=`cat icon-tag/config/cscs/SPACK_TAG_BALFRIN`
+elif [[ $(hostname) == santis* ]]; then 
+    git clone --depth 1 git@gitlab.dkrz.de:icon/icon-model.git icon-tag
+    SPACK_TAG=`cat icon-tag/config/cscs/SPACK_TAG_SANTIS`
     rm -fr icon-tag
 else
     error "Unknown hostname: $(hostname)"