diff --git a/spack.yaml b/spack.yaml
index 7189743f387452e832c900aefabd75d6aaeb9f64..c317c3757db7bfe6447e216003212e48399cb2cd 100644
--- a/spack.yaml
+++ b/spack.yaml
@@ -72,9 +72,10 @@ spack:
     script:
       - spack env activate --without-view ${SPACK_CONCRETE_ENV_DIR}
       - spack -d ci rebuild
+      - ls -ltr /builds/akarmas/ebrains-spack-builds/jobs_scratch_dir/local_mirror
 
     # all in artifacts (no shared filesystem...)
-    enable-artifacts-buildcache: False
+    enable-artifacts-buildcache: True
 
     # trigger service job below
     rebuild-index: True