add comment for squashed image

Signed-off-by: Peter St. John <pstjohn@nvidia.com>

Author: pstjohn

ci/scripts/recipes_local_test.py

@@ -47,7 +47,14 @@
 CUSTOM_CONTAINERS = {
     "models/amplify": "svcbionemo023/bionemo-framework:amplify-model-devcontainer-082025",
 }
+
 # DEFAULT_CONTAINER = "nvcr.io/nvidia/pytorch:25.06-py3"
+
+# This is a squashed version of the pytorch:25.06-py3 image, generated with
+# docker-squash nvcr.io/nvidia/pytorch:25.06-py3 -t svcbionemo023/bionemo-framework:pytorch25.06-py3-squashed
+# --output type=registry,compression=zstd,force-compression=true,oci-mediatypes=true,compression-level=15
+# and pushed to the dockerhub registry. Our github actions are able to cache image pulls from dockerhub but not nvcr, so
+# hopefully this cuts down slightly on CI time at the expense of having a slightly in-directed image location.
 DEFAULT_CONTAINER = "svcbionemo023/bionemo-framework:pytorch25.06-py3-squashed"