diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 3c70173..92c04f4 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -3,7 +3,7 @@ on:
   pull_request:
   merge_group:
   schedule:
-    - cron: '0 7 * * *'  # 7 am everyday
+    - cron: '0 15 * * *'  # 3pm UTC everyday (timed against official fedora container pushes)
   workflow_dispatch:
 env:
   IMAGE_REGISTRY: ghcr.io/${{ github.repository_owner }}
@@ -68,11 +68,19 @@ jobs:
       - name: Matrix Variables
         shell: bash
         run: |
-          if [[ "${{ matrix.image_name }}" == "lxqt" || "${{ matrix.image_name }}" == "mate" ]]; then
-              echo "SOURCE_IMAGE=base" >> $GITHUB_ENV
+          if [[ "${{ matrix.major_version }}" -ge "39" ]] && \
+            grep "${{ matrix.image_name }}" <<< "silverblue, kinoite, sericea"; then
+              echo "SOURCE_ORG=fedora" >> $GITHUB_ENV
+              echo "SOURCE_IMAGE=fedora-${{ matrix.image_name }}" >> $GITHUB_ENV
           else
-              echo "SOURCE_IMAGE=${{ matrix.image_name }}" >> $GITHUB_ENV
+              if [[ "${{ matrix.image_name }}" == "lxqt" || "${{ matrix.image_name }}" == "mate" ]]; then
+                  echo "SOURCE_IMAGE=base" >> $GITHUB_ENV
+              else
+                  echo "SOURCE_IMAGE=${{ matrix.image_name }}" >> $GITHUB_ENV
+              fi
+              echo "SOURCE_ORG=fedora-ostree-desktops" >> $GITHUB_ENV
           fi
+
           # THE FOLLOWING IS MESSY BUT TEMPORARY UNTIL F38 IS GONE
           # see: https://github.com/ublue-os/main/issues/369
           # Fedora 39+ images do not include custom kmods (legacy)
@@ -146,7 +154,7 @@ jobs:
       - name: Get current version
         id: labels
         run: |
-          ver=$(skopeo inspect docker://quay.io/fedora-ostree-desktops/${{ env.SOURCE_IMAGE }}:${{ matrix.major_version }} | jq -r '.Labels["org.opencontainers.image.version"]')
+          ver=$(skopeo inspect docker://quay.io/${{ env.SOURCE_ORG }}/${{ env.SOURCE_IMAGE }}:${{ matrix.major_version }} | jq -r '.Labels["org.opencontainers.image.version"]')
           echo "VERSION=$ver" >> $GITHUB_OUTPUT
 
       # Generate image metadata
@@ -175,6 +183,7 @@ jobs:
             ${{ steps.generate-tags.outputs.alias_tags }}
           build-args: |
             IMAGE_NAME=${{ matrix.image_name }}
+            SOURCE_ORG=${{ env.SOURCE_ORG }}
             SOURCE_IMAGE=${{ env.SOURCE_IMAGE }}
             FEDORA_MAJOR_VERSION=${{ matrix.major_version }}
           labels: ${{ steps.meta.outputs.labels }}
diff --git a/Containerfile b/Containerfile
index 80ae7a0..a410af4 100644
--- a/Containerfile
+++ b/Containerfile
@@ -1,6 +1,7 @@
 ARG IMAGE_NAME="${IMAGE_NAME:-silverblue}"
 ARG SOURCE_IMAGE="${SOURCE_IMAGE:-silverblue}"
-ARG BASE_IMAGE="quay.io/fedora-ostree-desktops/${SOURCE_IMAGE}"
+ARG SOURCE_ORG="${SOURCE_IMAGE:-fedora-ostree-desktops}"
+ARG BASE_IMAGE="quay.io/${SOURCE_ORG}/${SOURCE_IMAGE}"
 ARG FEDORA_MAJOR_VERSION="${FEDORA_MAJOR_VERSION:-38}"
 
 FROM ${BASE_IMAGE}:${FEDORA_MAJOR_VERSION} AS nokmods