diff --git a/bin/record_mastodon_media_size.bash b/bin/record_mastodon_media_size.bash
new file mode 100755
index 0000000..c36d2ab
--- /dev/null
+++ b/bin/record_mastodon_media_size.bash
@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+
+# /etc/cron.daily/record_mastodon_media_size.bash
+
+set -euo pipefail
+
+RECORD_FILE="/var/log/mastodon_media_size.log"
+
+file_count=$(sudo /home/jas/.cargo/bin/dust -c -P -d 0 -b -f -R -p /home/mastodon/live/public/system | awk '{print $3}')
+
+sudo /home/jas/.cargo/bin/dust \
+    -c -P -d 0 -b -R -p \
+    /home/mastodon/live/public/system |
+    awk -v fc="$file_count" -v tstamp="$(date '+%Y-%m-%d-%H%M%S')" '{print tstamp,$1,$3,fc}' |
+    tee -a "${RECORD_FILE}"