diff --git a/.github/workflows/docker-buildops.yml b/.github/workflows/docker-buildops.yml
index e79227d..029f734 100644
--- a/.github/workflows/docker-buildops.yml
+++ b/.github/workflows/docker-buildops.yml
@@ -38,7 +38,7 @@ jobs:
         with:
           dockerfile: Dockerfile
           recursive: true
-          trusted-registries: quay.io, ghcr.io
+          trusted-registries: quay.io, ghcr.io,docker.io,dock.mau.dev
         continue-on-error: true
 
   mkdocs-material:
@@ -154,11 +154,12 @@ jobs:
           TAGS: ${{ steps.meta.outputs.tags }}
           DIGEST: ${{ steps.build.outputs.digest }}
         run: echo "${TAGS}" | xargs -I {} cosign sign --yes {}@${DIGEST}
+        continue-on-error: true
 
       # ...and then generate a build attestation via actions/attest-build-provenance workflow.
       - name: "Generate attestation for GitHub API access [nightly builds]"
         uses: actions/attest-build-provenance@v1
-        if: ${{ github.event_name != 'pull_request' }}
+        if: ${{ github.event_name == 'schedule' }}
         id: attest-nightly-builds
         with:
           subject-name: ghcr.io/${{ env.IMAGE_NAME_PREFIX }}/mkdocs-material
diff --git a/.hadolint.yml b/.hadolint.yml
index f7dbcd7..36efe1b 100644
--- a/.hadolint.yml
+++ b/.hadolint.yml
@@ -3,5 +3,6 @@ trusted-registries:
 - ghcr.io
 - quay.io
 - dock.mau.dev
+- docker.io
 ignored:
 - DL3013
\ No newline at end of file
diff --git a/README.md b/README.md
index 4c11d3b..fbc9477 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,14 @@
 
 Collection of Docker image recipes and related utilities in one monorepo. Licensed under MPL-2.0.
 
+* Issue Trackers
+  * JetBrains YouTrack: <https://ajhalili2006.youtrack.cloud/search/Docker%20Images%20Monorepo%20Issues-20?q=project:%20%7BDocker%20Images%20Monorepo%7D&p=0>
+  * GitHub: <https://github.com/andreijiroh-dev/docker-images/issues>
+  * mau.dev: <https://mau.dev/andreijiroh-dev/docker-images/issues>
+* Repository mirrors
+  * GitHub: <https://github.com/andreijiroh-dev/docker-images>
+  * mau.dev: <https://mau.dev/andreijiroh-dev/docker-images>
+
 ## Namespaces[^2]
 
 | Registry | URL | Description/Notes |