diff --git a/daily_backup.sh b/daily_backup.sh
new file mode 100755
index 00000000..fa435f86
--- /dev/null
+++ b/daily_backup.sh
@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+
+# Run this in the singularity repo
+
+while true; do
+	./backup/backup.sh > "/var/backup/$(date +%s).tar.gz"
+	sleep 1d
+done
diff --git a/script-lint.sh b/script-lint.sh
index 40b70a16..a2bb776d 100755
--- a/script-lint.sh
+++ b/script-lint.sh
@@ -18,9 +18,10 @@ shellcheck git/create-repo.sh
 shellcheck git/setup-repo.sh
 shellcheck git/cgi-bin/git-receive-pack
 shellcheck git/hooks/post-update
+shellcheck daily_backup.sh
 
 # -x needed to make shellcheck follow `source` command
 shellcheck -x backup/backup.sh
 shellcheck -x backup/restore.sh
 
-test "$(git ls-tree -r HEAD | grep -c '.*\.sh$')" -eq "13" || (echo "New script detected. Does it need to be added to script-lint?" && false)
+test "$(git ls-tree -r HEAD | grep -c '.*\.sh$')" -eq "14" || (echo "New script detected. Does it need to be added to script-lint?" && false)