diff --git a/.github/workflows/build_test.yml b/.github/workflows/build_test.yml
index aa042d68cd..df816736e6 100644
--- a/.github/workflows/build_test.yml
+++ b/.github/workflows/build_test.yml
@@ -23,10 +23,7 @@ on:
 jobs:
   build-test-cyclus:
     runs-on: ubuntu-latest
-    permissions:
-      contents: read
-      packages: write
-      pull-requests: write
+
     strategy:
       fail-fast: false
       matrix:
@@ -39,16 +36,17 @@ jobs:
           conda,
         ]
 
-    steps:
-      - name: Log in to the Container registry
-        uses: docker/login-action@v3
-        with:
-          registry: ghcr.io
-          username: ${{ github.repository_owner }}
-          password: ${{ secrets.GITHUB_TOKEN }}
+    services:
+      registry:
+        image: registry:2
+        ports:
+          - 5000:5000
 
+    steps:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
+        with:
+          driver-opts: network=host
 
       - name: Checkout Cyclus
         uses: actions/checkout@v4
@@ -59,8 +57,7 @@ jobs:
         with:
           file: docker/Dockerfile
           cache-from: type=registry,ref=ghcr.io/cyclus/cyclus_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cyclus:ci-layer-cache
-          cache-to: type=registry,ref=ghcr.io/cyclus/cyclus_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cyclus:ci-layer-cache,mode=max
-          tags: ghcr.io/cyclus/cyclus_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cyclus:ci-image-cache
+          tags: localhost:5000/cyclus:local
           push: true
           build-args: |
             pkg_mgr=${{ matrix.pkg_mgr }}
@@ -81,14 +78,14 @@ jobs:
         with:
           context: ${{ github.workspace }}/cycamore
           file: ${{ github.workspace }}/cycamore/docker/Dockerfile
+          build-contexts: |
+            ghcr.io/cyclus/cyclus_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cyclus=docker-image://localhost:5000/cyclus:local
           cache-from: type=registry,ref=ghcr.io/cyclus/cycamore_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cycamore:ci-layer-cache
-          cache-to: type=registry,ref=ghcr.io/cyclus/cycamore_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cycamore:ci-layer-cache,mode=max
-          tags: ghcr.io/cyclus/cycamore_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cycamore:ci-image-cache
+          tags: localhost:5000/cycamore:local
           push: true
           build-args: |
             pkg_mgr=${{ matrix.pkg_mgr }}
             ubuntu_version=${{ matrix.ubuntu_versions }}
-            cyclus_tag=ci-image-cache@${{ steps.build-cyclus.outputs.digest }}
 
       - name: Checkout Cymetric
         if: ${{ github.event_name == 'pull_request' && steps.build-cycamore.outcome == 'success' }}
@@ -105,25 +102,51 @@ jobs:
         with:
           context: ${{ github.workspace }}/cymetric
           file: ${{ github.workspace }}/cymetric/docker/Dockerfile
+          build-contexts: |
+            ghcr.io/cyclus/cycamore_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cycamore=docker-image://localhost:5000/cycamore:local
           cache-from: type=registry,ref=ghcr.io/cyclus/cymetric_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cymetric:ci-layer-cache
-          cache-to: type=registry,ref=ghcr.io/cyclus/cymetric_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cymetric:ci-layer-cache,mode=max
-          tags: ghcr.io/cyclus/cymetric_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cymetric:ci-image-cache
-          push: true
           build-args: |
             pkg_mgr=${{ matrix.pkg_mgr }}
             ubuntu_version=${{ matrix.ubuntu_versions }}
-            cycamore_tag=ci-image-cache@${{ steps.build-cycamore.outputs.digest }}
   
-      - name: PR Comment
-        if: ${{ github.event_name == 'pull_request' }}
-        uses: thollander/actions-comment-pull-request@v2
+      - name: Export Environment Variables
+        if: github.event_name == 'pull_request'
+        run: |
+          echo "CYCAMORE_BUILD_STATUS=${{steps.build-cycamore.outcome == 'success' && '**Success** :white_check_mark:' || 
+          steps.build-cycamore.outcome == 'failure' && '**Failure** :x:' || 
+          '**Skipped due to upstream failure** :warning:'}}" >> "$GITHUB_ENV"
+
+          echo "CYMETRIC_BUILD_STATUS=${{steps.build-cymetric.outcome == 'success' && '**Success** :white_check_mark:' || 
+          steps.build-cymetric.outcome == 'failure' && '**Failure** :x:' || 
+          '**Skipped due to upstream failure** :warning:'}}" >> "$GITHUB_ENV"
+
+          echo "ARTIFACT_NAME=${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}" >> "$GITHUB_ENV"
+
+      - name: Construct Artifact
+        if: github.event_name == 'pull_request'
+        run: |
+          echo "
+          ##### Build \`FROM cyclus_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cyclus\`
+            - Cycamore: ${{ env.CYCAMORE_BUILD_STATUS }}
+            - Cymetric: ${{ env.CYMETRIC_BUILD_STATUS }}" > ${{ env.ARTIFACT_NAME }}.txt
+      
+      - name: Upload Artifact
+        if: github.event_name == 'pull_request'
+        uses: actions/upload-artifact@v4
+        with:
+          name: ${{ env.ARTIFACT_NAME }}
+          path: ${{ env.ARTIFACT_NAME }}.txt
+
+  upload-pr-number:
+    runs-on: ubuntu-latest
+    if: github.event_name == 'pull_request'
+    steps:
+      - name: Save PR number to file
+        run: |
+          echo "${{ github.event.number }}" > pr_number
+      
+      - name: Upload artifact
+        uses: actions/upload-artifact@v4
         with:
-          comment_tag: ${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}
-          message: |
-            ## Downstream build statuses using cyclus_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}
-            - Cycamore: ${{steps.build-cycamore.outcome == 'success' && '*Success* :white_check_mark:' || 
-                steps.build-cycamore.outcome == 'failure' && '**Failure** :x:' || 
-                '**Skipped due to upstream failure** :warning:'}}
-            - Cymetric: ${{steps.build-cymetric.outcome == 'success' && '*Success* :white_check_mark:' || 
-                steps.build-cymetric.outcome == 'failure' && '**Failure** :x:' || 
-                '**Skipped due to upstream failure** :warning:'}}
\ No newline at end of file
+          name: pr_number
+          path: pr_number
\ No newline at end of file
diff --git a/.github/workflows/code_coverage.yml b/.github/workflows/code_coverage.yml
index a15d606244..8532fb07bb 100644
--- a/.github/workflows/code_coverage.yml
+++ b/.github/workflows/code_coverage.yml
@@ -11,6 +11,9 @@ on:
       - '.github/workflows/changelog_test.yml'
       - 'doc/**'
       - 'CHANGELOG.rst'
+  push:
+    branches:
+      - main
 
 jobs:
   build-and-test:
@@ -35,7 +38,7 @@ jobs:
         uses: docker/login-action@v3
         with:
           registry: ghcr.io
-          username: ${{ github.repository_owner }}
+          username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Checkout Cyclus
@@ -48,7 +51,7 @@ jobs:
         uses: docker/build-push-action@v5
         with:
           cache-from: type=registry,ref=ghcr.io/cyclus/cyclus_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cyclus-coverage:ci-layer-cache
-          cache-to: type=registry,ref=ghcr.io/cyclus/cyclus_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cyclus-coverage:ci-layer-cache,mode=max
+          cache-to: type=registry,ref=ghcr.io/cyclus/cyclus_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cyclus-coverage:ci-layer-cache,mode=max,ignore-error=true
           file: docker/Dockerfile
           target: coverage-report
           outputs: type=local,dest=.
diff --git a/.github/workflows/pr_comment.yml b/.github/workflows/pr_comment.yml
new file mode 100644
index 0000000000..b7fcc124b6
--- /dev/null
+++ b/.github/workflows/pr_comment.yml
@@ -0,0 +1,32 @@
+name: Comment on PR
+
+on:
+  workflow_run:
+    workflows: ["Build/Test Cyclus"]
+    types:
+      - completed
+
+jobs:
+  pr-comment:
+    runs-on: ubuntu-latest
+    if: github.event.workflow_run.event == 'pull_request' && github.event.workflow_run.conclusion == 'success'
+    steps:
+      - name: Download artifacts
+        uses: actions/download-artifact@v4
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+          run-id: ${{ github.event.workflow_run.id }}
+          merge-multiple: true
+
+      - name: Merge artifacts and get PR number
+        run: |
+          echo "### Downstream Build Status Report" > artifacts_merged.md
+          cat ./*.txt >> artifacts_merged.md
+          echo "PR_NUMBER=$(cat pr_number)" >> "$GITHUB_ENV"
+
+      - name: PR Comment
+        uses: thollander/actions-comment-pull-request@v2
+        with:
+          pr_number: ${{ env.PR_NUMBER }}
+          comment_tag: build_status_report
+          filePath: artifacts_merged.md
\ No newline at end of file
diff --git a/.github/workflows/publish_latest.yml b/.github/workflows/publish_latest.yml
index f0d384cb34..5cfae67644 100644
--- a/.github/workflows/publish_latest.yml
+++ b/.github/workflows/publish_latest.yml
@@ -43,7 +43,7 @@ jobs:
         uses: docker/login-action@v3
         with:
           registry: ghcr.io
-          username: ${{ github.repository_owner }}
+          username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Checkout Cyclus
@@ -53,10 +53,10 @@ jobs:
         uses: docker/setup-buildx-action@v3
 
       - name: Build, Test, and Push Cyclus
+        id: build-cyclus
         uses: docker/build-push-action@v5
         with:
           cache-from: type=registry,ref=ghcr.io/cyclus/cyclus_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cyclus:ci-layer-cache
-          cache-to: type=registry,ref=ghcr.io/cyclus/cyclus_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cyclus:ci-layer-cache,mode=max
           file: docker/Dockerfile
           push: true
           tags: ghcr.io/cyclus/cyclus_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cyclus:${{ env.tag }}
@@ -78,7 +78,6 @@ jobs:
           context: ${{ github.workspace }}/cycamore
           file: ${{ github.workspace }}/cycamore/docker/Dockerfile
           cache-from: type=registry,ref=ghcr.io/cyclus/cycamore_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cycamore:ci-layer-cache
-          cache-to: type=registry,ref=ghcr.io/cyclus/cycamore_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cycamore:ci-layer-cache,mode=max
           tags: ghcr.io/cyclus/cycamore_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cycamore:${{ env.tag }}
           push: true
           build-args: |
@@ -99,7 +98,6 @@ jobs:
           context: ${{ github.workspace }}/cymetric
           file: ${{ github.workspace }}/cymetric/docker/Dockerfile
           cache-from: type=registry,ref=ghcr.io/cyclus/cymetric_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cymetric:ci-layer-cache
-          cache-to: type=registry,ref=ghcr.io/cyclus/cymetric_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cymetric:ci-layer-cache,mode=max
           tags: ghcr.io/cyclus/cymetric_${{ matrix.ubuntu_versions }}_${{ matrix.pkg_mgr }}/cymetric:${{ env.tag }}
           push: true
           build-args: |
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 2c60811ca2..e2115d2412 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -17,7 +17,7 @@ Since last release
   will fail unless update-alternatives has been used to point python at the 
   correct python3 version (#1558)
 * build and test are now fown on githubAction in place or CircleCI (#1569)
-* Have separate workflows for testing, publishing dependency images, and publishing release images (#1597, #1602, #1606, #1609, #1629, #1633, #1637)
+* Have separate workflows for testing, publishing dependency images, and publishing release images (#1597, #1602, #1606, #1609, #1629, #1633, #1637, #1668)
 * Add Ubuntu 20.04 to the list of supported platforms (#1605, #1608)
 * Add random number generator (Mersenne Twister 19937, from boost) and the ability to set the seed in the simulation control block (#1599)
 * Added code coverage reporting to GitHub workflows (#1616)