--- scripts/agent-local/opkg	1970-01-01 00:00:00.000000000 +0000
+++ scripts/agent-local/opkg	2023-04-25 17:20:23.954706342 +0100
@@ -0,0 +1,18 @@
+#!/bin/sh
+# Originally dpkg from Observium
+# Cache the file for 30 minutes
+# If you want to override this, put the command in cron.
+# We cache because it is a 10sec delay, which is painful for the poller
+
+opkgFILE=/tmp/observium-agent-opkg
+
+if opkg list-installed >/dev/null 2>&1; then
+  echo "<<<opkg>>>"
+  if [ ! -e $opkgFILE ] || [ $(($(date +%s)-$(stat -c %Y $opkgFILE))) -gt 1800 ]; then
+    true > $opkgFILE
+    opkg list-installed | cut -f1 -d' ' | while IFS= read -r line; do
+      opkg info "$line" | awk '/^Package/ { p=$2 } /^Version/ { v=$2 } /^Architecture/ { a=$2 } /^Size/ { s=$2 } END { print p, v, a, s }' | head -1 >> $opkgFILE
+    done
+  fi
+  cat $opkgFILE
+fi