diff --git a/testdata/moonfire-nvr/movement_detection_via_api_ffmpeg.sh b/testdata/moonfire-nvr/movement_detection_via_api_ffmpeg.sh
index c051208..919c7aa 100644
--- a/testdata/moonfire-nvr/movement_detection_via_api_ffmpeg.sh
+++ b/testdata/moonfire-nvr/movement_detection_via_api_ffmpeg.sh
@@ -1,7 +1,7 @@
 #! /bin/bash
 
 main() {
-   local nonrecent_unix="$(($(_date +%s) - 24 * 60 * 60))" # 1d ago
+   local nonrecent_unix="$(($(_date +%s) - 4 * 60 * 60))" # 4h ago
    local nonrecent_ts="$(_date -d @$nonrecent_unix -u +%Y-%m-%dT%H:%M:%SZ)"
 
    for uuid in $(
@@ -54,32 +54,35 @@ main() {
                threshold="$max_of_last_n"
             fi
          done
-         threshold="$(echo "$threshold + 0.01" | bc)"
+         threshold="$(perl -e "print $threshold + 0.005")"
 
-         local max_flattened_score=$(echo "${flattened_scores[@]:5:${#flattened_scores[@]}-10}" | tr ' ' '\n' | sort -n | tail -n 1)
          local has_change=false
-         if [[ "${max_flattened_score#*.}" > "${threshold#*.}" ]]; then
+         if [ "${#flattened_scores[@]}" -lt 10 ]; then
             has_change=true
+         else
+            local max_flattened_score=$(echo "${flattened_scores[@]:5:${#flattened_scores[@]}-10}" | tr ' ' '\n' | sort -n | tail -n 1)
+            if [[ "${max_flattened_score#*.}" > "${threshold#*.}" ]]; then
+               has_change=true
+            fi
          fi
 
          if $has_change; then
             echo "$uuid.$recording" >> /tmp/movement_detection_via_api_ffmpeg.sh.txt
          else
             echo no movement in "$recording"
-            api "/api/cameras/$uuid/$stream/view.mp4" \
+            echo api "/api/cameras/$uuid/$stream/view.mp4" \
                -X DELETE \
                -H 'Content-Type: application/json' \
                -d "$(printf '{"runStartId": %s}' "$recording")"
          fi
       done
-      break
    done
 }
 
 api() {
    local path="$1"
    shift
-   curl -sS "${CAMS_URL:-https://cams.inhome.blapointe.com}/${path#/}" "$@"
+   curl -sS "${CAMS_URL:-http://192.168.0.86:29898}/${path#/}" "$@"
 }
 
 _date() {