diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 59ec4499dc5e23da91f12fd6a09edb1eec14c932..693324c0fbb8a5b9113f3a84591a577021f5bb71 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -242,7 +242,7 @@ sync-gitlab-spack-instance:
     - read-write
   image: $GITLAB_BUILD_ENV_DOCKER_IMAGE
   variables:
-    SPACK_NFS_ENV: ebrains-runner-build
+    SPACK_NFS_ENV: $CI_COMMIT_BRANCH
     SPACK_PATH: $SPACK_PATH_GITLAB
     SPACK_USER_CACHE_PATH: $SPACK_PATH/spack/.spack
     SPACK_USER_CONFIG_PATH: $SPACK_PATH/spack/.spack
@@ -305,5 +305,5 @@ sync-gitlab-spack-instance:
       - spack_logs
     when: always
   rules:
-    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH && $CI_PROJECT_NAMESPACE =~ /technical-coordination/
+    - if: ($CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH || $CI_COMMIT_BRANCH == "experimental_rel" || $CI_COMMIT_BRANCH =~ /^ebrains/) && $CI_PROJECT_NAMESPACE =~ /technical-coordination/
       when: manual