2 files changed, 6 insertions, 0 deletions
diff --git a/scripts-dev/build_debian_packages.py b/scripts-dev/build_debian_packages.py
index ede7665011..4c9f134ddd 100755
--- a/scripts-dev/build_debian_packages.py
+++ b/scripts-dev/build_debian_packages.py
@@ -20,6 +20,8 @@ from concurrent.futures import ThreadPoolExecutor
 from types import FrameType
 from typing import Collection, Optional, Sequence, Set
 
+# These are expanded inside the dockerfile to be a fully qualified image name.
+# e.g. docker.io/library/debian:bullseye
 DISTS = (
     "debian:buster",  # oldstable: EOL 2022-08
     "debian:bullseye",
diff --git a/scripts-dev/complement.sh b/scripts-dev/complement.sh
index cba2799f15..131f26234e 100755
--- a/scripts-dev/complement.sh
+++ b/scripts-dev/complement.sh
@@ -269,6 +269,10 @@ if [[ -n "$SYNAPSE_TEST_LOG_LEVEL" ]]; then
   export PASS_SYNAPSE_LOG_SENSITIVE=1
 fi
 
+# Log a few more useful things for a developer attempting to debug something
+# particularly tricky.
+export PASS_SYNAPSE_LOG_TESTING=1
+
 # Run the tests!
 echo "Images built; running complement"
 cd "$COMPLEMENT_DIR"