diff --git a/.github/workflows/external_trigger.yml b/.github/workflows/external_trigger.yml
index e1ab24d..b0783f5 100755
--- a/.github/workflows/external_trigger.yml
+++ b/.github/workflows/external_trigger.yml
@@ -48,13 +48,30 @@ jobs:
             --header "Accept: application/vnd.oci.image.index.v1+json" \
             --header "Authorization: Bearer ${token}" \
             "https://ghcr.io/v2/${image}/manifests/${tag}")
-          multidigest=$(jq -r ".manifests[] | select(.platform.architecture == \"amd64\").digest?" <<< "${multidigest}")
-          digest=$(curl -s \
-            --header "Accept: application/vnd.docker.distribution.manifest.v2+json" \
-            --header "Accept: application/vnd.oci.image.manifest.v1+json" \
-            --header "Authorization: Bearer ${token}" \
-            "https://ghcr.io/v2/${image}/manifests/${multidigest}" \
-            | jq -r '.config.digest')
+          if jq -e '.layers // empty' <<< "${multidigest}" >/dev/null 2>&1; then
+            # If there's a layer element it's a single-arch manifest so just get that digest
+            digest=$(jq -r '.config.digest' <<< "${multidigest}")
+          else
+            # Otherwise it's multi-arch or has manifest annotations
+            if jq -e '.manifests[]?.annotations // empty' <<< "${multidigest}" >/dev/null 2>&1; then
+              # Check for manifest annotations and delete if found
+              multidigest=$(jq 'del(.manifests[] | select(.annotations))' <<< "${multidigest}")
+            fi
+            if [[ $(jq '.manifests | length' <<< "${multidigest}") -gt 1 ]]; then
+              # If there's still more than one digest, it's multi-arch
+              multidigest=$(jq -r ".manifests[] | select(.platform.architecture == \"amd64\").digest?" <<< "${multidigest}")
+            else
+              # Otherwise it's single arch
+              multidigest=$(jq -r ".manifests[].digest?" <<< "${multidigest}")
+            fi
+            if digest=$(curl -s \
+              --header "Accept: application/vnd.docker.distribution.manifest.v2+json" \
+              --header "Accept: application/vnd.oci.image.manifest.v1+json" \
+              --header "Authorization: Bearer ${token}" \
+              "https://ghcr.io/v2/${image}/manifests/${multidigest}"); then
+              digest=$(jq -r '.config.digest' <<< "${digest}");
+            fi
+          fi
           image_info=$(curl -sL \
             --header "Authorization: Bearer ${token}" \
             "https://ghcr.io/v2/${image}/blobs/${digest}")
@@ -92,7 +109,7 @@ jobs:
             else
               printf "\n## Trigger new build\n\n" >> $GITHUB_STEP_SUMMARY
               echo "New version \`${EXT_RELEASE}\` found; old version was \`${IMAGE_VERSION}\`. Triggering new build" >> $GITHUB_STEP_SUMMARY
-              if "${artifacts_found}" == "true" ]]; then
+              if [[ "${artifacts_found}" == "true" ]]; then
                 echo "All artifacts seem to be uploaded." >> $GITHUB_STEP_SUMMARY
               fi
               response=$(curl -iX POST \
diff --git a/.github/workflows/package_trigger_scheduler.yml b/.github/workflows/package_trigger_scheduler.yml
index dd1da04..c4895e7 100755
--- a/.github/workflows/package_trigger_scheduler.yml
+++ b/.github/workflows/package_trigger_scheduler.yml
@@ -27,9 +27,18 @@ jobs:
             fi
             printf "\n## Evaluating \`%s\`\n\n" ${br} >> $GITHUB_STEP_SUMMARY
             JENKINS_VARS=$(curl -sX GET https://raw.githubusercontent.com/linuxserver/docker-ubooquity/${br}/jenkins-vars.yml)
-            if [[ "${br}" == $(yq -r '.ls_branch' <<< "${JENKINS_VARS}") ]]; then
+            if ! curl -sfX GET https://raw.githubusercontent.com/linuxserver/docker-ubooquity/${br}/Jenkinsfile >/dev/null 2>&1; then
+              echo "> [!WARNING]" >> $GITHUB_STEP_SUMMARY
+              echo "> No Jenkinsfile found. Branch is either deprecated or is an early dev branch." >> $GITHUB_STEP_SUMMARY
+              skipped_branches="${skipped_branches}${br} "
+            elif [[ "${br}" == $(yq -r '.ls_branch' <<< "${JENKINS_VARS}") ]]; then
               echo "Branch appears to be live; checking workflow." >> $GITHUB_STEP_SUMMARY
-              if [[ $(yq -r '.skip_package_check' <<< "${JENKINS_VARS}") == "true" ]]; then
+              README_VARS=$(curl -sX GET https://raw.githubusercontent.com/linuxserver/docker-ubooquity/${br}/readme-vars.yml)
+              if [[ $(yq -r '.project_deprecation_status' <<< "${README_VARS}") == "true" ]]; then
+                echo "> [!WARNING]" >> $GITHUB_STEP_SUMMARY
+                echo "> Branch appears to be deprecated; skipping trigger." >> $GITHUB_STEP_SUMMARY
+                skipped_branches="${skipped_branches}${br} "
+              elif [[ $(yq -r '.skip_package_check' <<< "${JENKINS_VARS}") == "true" ]]; then
                 echo "> [!WARNING]" >> $GITHUB_STEP_SUMMARY
                 echo "> Skipping branch ${br} due to \`skip_package_check\` being set in \`jenkins-vars.yml\`." >> $GITHUB_STEP_SUMMARY
                 skipped_branches="${skipped_branches}${br} "
@@ -37,7 +46,7 @@ jobs:
                 echo "> [!WARNING]" >> $GITHUB_STEP_SUMMARY
                 echo "> Github organizational variable \`SKIP_PACKAGE_TRIGGER\` contains \`ubooquity_${br}\`; skipping trigger." >> $GITHUB_STEP_SUMMARY
                 skipped_branches="${skipped_branches}${br} "
-              elif [ $(curl -s https://ci.linuxserver.io/job/Docker-Pipeline-Builders/job/docker-ubooquity/job/${br}/lastBuild/api/json | jq -r '.building') == "true" ]; then
+              elif [ $(curl -s https://ci.linuxserver.io/job/Docker-Pipeline-Builders/job/docker-ubooquity/job/${br}/lastBuild/api/json | jq -r '.building' 2>/dev/null) == "true" ]; then
                 echo "> [!WARNING]" >> $GITHUB_STEP_SUMMARY
                 echo "> There already seems to be an active build on Jenkins; skipping package trigger for ${br}" >> $GITHUB_STEP_SUMMARY
                 skipped_branches="${skipped_branches}${br} "
@@ -49,6 +58,11 @@ jobs:
                 response=$(curl -iX POST \
                   https://ci.linuxserver.io/job/Docker-Pipeline-Builders/job/docker-ubooquity/job/${br}/buildWithParameters?PACKAGE_CHECK=true \
                   --user ${{ secrets.JENKINS_USER }}:${{ secrets.JENKINS_TOKEN }} | grep -i location | sed "s|^[L|l]ocation: \(.*\)|\1|")
+                if [[ -z "${response}" ]]; then
+                  echo "> [!WARNING]" >> $GITHUB_STEP_SUMMARY
+                  echo "> Jenkins build could not be triggered. Skipping branch."
+                  continue
+                fi
                 echo "Jenkins [job queue url](${response%$'\r'})" >> $GITHUB_STEP_SUMMARY
                 echo "Sleeping 10 seconds until job starts" >> $GITHUB_STEP_SUMMARY
                 sleep 10
@@ -56,11 +70,14 @@ jobs:
                 buildurl="${buildurl%$'\r'}"
                 echo "Jenkins job [build url](${buildurl})" >> $GITHUB_STEP_SUMMARY
                 echo "Attempting to change the Jenkins job description" >> $GITHUB_STEP_SUMMARY
-                curl -iX POST \
+                if ! curl -ifX POST \
                   "${buildurl}submitDescription" \
                   --user ${{ secrets.JENKINS_USER }}:${{ secrets.JENKINS_TOKEN }} \
                   --data-urlencode "description=GHA package trigger https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}" \
-                  --data-urlencode "Submit=Submit"
+                  --data-urlencode "Submit=Submit"; then
+                  echo "> [!WARNING]" >> $GITHUB_STEP_SUMMARY
+                  echo "> Unable to change the Jenkins job description."
+                fi
                 sleep 20
               fi
             else