diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index ccf22b3..a96c7b4 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -96,14 +96,18 @@ jobs:
       - name: Docker (un)compressed sizes
         run: |
           echo '```console' >> "$GITHUB_STEP_SUMMARY"
-          echo '# Uncompressed size (max, not size on disk due to sharing):'
-          echo '$ docker image ls' >> "$GITHUB_STEP_SUMMARY"
-          docker image ls | tee -a "$GITHUB_STEP_SUMMARY"
-          echo
-          echo '# size = unique + shared:'
-          echo '$ docker system df -v' >> "$GITHUB_STEP_SUMMARY"
-          docker system df -v | tee -a "$GITHUB_STEP_SUMMARY"
-          echo
+          # echo '# Uncompressed size (max, not size on disk due to sharing):'
+          # echo '$ docker image ls' >> "$GITHUB_STEP_SUMMARY"
+          # docker image ls | tee -a "$GITHUB_STEP_SUMMARY"
+          # echo
+          # echo '# size = unique + shared:'
+          # echo '$ docker system df -v' >> "$GITHUB_STEP_SUMMARY"
+          # docker system df -v | tee -a "$GITHUB_STEP_SUMMARY"
+          ## the above work locally, but in CI with buildx just list moby/buildkit and tonistiigi/binfmt
+          echo "# Compressed sizes:" >> "$GITHUB_STEP_SUMMARY"
           dockersize() { docker manifest inspect -v "$1" | jq -c 'if type == "array" then .[] else . end' |  jq -r '[ ( .Descriptor.platform | [ .os, .architecture, .variant, ."os.version" ] | del(..|nulls) | join("/") ), ( [ ( .OCIManifest // .SchemaV2Manifest ).layers[].size ] | add ) ] | join(" ")' | numfmt --to iec --format '%.2f' --field 2 | sort | column -t ; }
-          dockersize ghcr.io/${{ github.actor }}/free-games-claimer:${{env.IMAGE_TAG}}
+          dockersize ghcr.io/${{ github.actor }}/free-games-claimer:${{env.IMAGE_TAG}} | tee -a "$GITHUB_STEP_SUMMARY"
+          log() { echo "\$ $@" >> "$GITHUB_STEP_SUMMARY"; "$@" >> "$GITHUB_STEP_SUMMARY"; }
+          log docker buildx history inspect
+          log docker buildx du
           echo '```' >> "$GITHUB_STEP_SUMMARY"