diff --git a/.github/workflows/backport.yaml b/.github/workflows/backport.yaml
index 8f3dc518..108e3e2b 100644
--- a/.github/workflows/backport.yaml
+++ b/.github/workflows/backport.yaml
@@ -1,34 +1,12 @@
 name: backport
-
 on:
   pull_request_target:
     types: [closed, labeled]
-
-permissions:
-  contents: read
-
 jobs:
-  pull-request:
-    runs-on: ubuntu-latest
+  backport:
     permissions:
-      contents: write
-      pull-requests: write
-    if: github.event.pull_request.state == 'closed' && github.event.pull_request.merged && (github.event_name != 'labeled' || startsWith('backport:', github.event.label.name))
-    steps:
-      - name: Checkout
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-        with:
-          ref: ${{ github.event.pull_request.head.sha }}
-      - name: Create backport PRs
-        uses: korthout/backport-action@ca4972adce8039ff995e618f5fc02d1b7961f27a # v3.3.0
-        # xref: https://github.com/korthout/backport-action#inputs
-        with:
-          # Use token to allow workflows to be triggered for the created PR
-          github_token: ${{ secrets.BOT_GITHUB_TOKEN }}
-          # Match labels with a pattern `backport:<target-branch>`
-          label_pattern: '^backport:([^ ]+)$'
-          # A bit shorter pull-request title than the default
-          pull_title: '[${target_branch}] ${pull_title}'
-          # Simpler PR description than default
-          pull_description: |-
-            Automated backport to `${target_branch}`, triggered by a label in #${pull_number}.
+      contents: write # for reading and creating branches.
+      pull-requests: write # for creating pull requests against release branches.
+    uses: fluxcd/gha-workflows/.github/workflows/backport.yaml@v0.3.0
+    secrets:
+      github-token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/cifuzz.yaml b/.github/workflows/cifuzz.yaml
index 98cb4618..94204eb4 100644
--- a/.github/workflows/cifuzz.yaml
+++ b/.github/workflows/cifuzz.yaml
@@ -3,22 +3,15 @@ on:
   pull_request:
     branches:
       - main
-
-permissions:
-  contents: read # for actions/checkout to fetch code
-
 jobs:
   smoketest:
     runs-on: ubuntu-latest
+    permissions:
+      contents: read # for reading the repository code.
     steps:
-    - name: Checkout
-      uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-    - name: Setup Go
-      uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
-      with:
-        go-version: 1.25.x
-        cache-dependency-path: |
-          **/go.sum
-          **/go.mod
-    - name: Smoke test Fuzzers
-      run: make fuzz-smoketest
+      - name: Test suite setup
+        uses: fluxcd/gha-workflows/.github/actions/setup-kubernetes@v0.3.0
+        with:
+          go-version: 1.25.x
+      - name: Smoke test Fuzzers
+        run: make fuzz-smoketest
diff --git a/.github/workflows/e2e.yaml b/.github/workflows/e2e.yaml
index 6d4d8dcf..1ec887b0 100644
--- a/.github/workflows/e2e.yaml
+++ b/.github/workflows/e2e.yaml
@@ -1,49 +1,20 @@
 name: e2e
-
 on:
   pull_request:
   push:
     branches:
       - 'main'
       - 'release/**'
-
-permissions:
-  contents: read # for actions/checkout to fetch code
-
 jobs:
   kind:
     runs-on: ubuntu-latest
+    permissions:
+      contents: read # for reading the repository code.
     steps:
-      - name: Checkout
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-      - name: Setup QEMU
-        uses: docker/setup-qemu-action@29109295f81e9208d7d86ff1c6c12d2833863392 # v3.6.0
-      - name: Setup Docker Buildx
-        id: buildx
-        uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
-      - name: Cache Docker layers
-        uses: actions/cache@0400d5f644dc74513175e3cd8d07132dd4860809 # v4.2.4
-        id: cache
-        with:
-          path: /tmp/.buildx-cache
-          key: ${{ runner.os }}-buildx-ghcache-${{ github.sha }}
-          restore-keys: |
-            ${{ runner.os }}-buildx-ghcache-
-      - name: Setup Go
-        uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
+      - name: Test suite setup
+        uses: fluxcd/gha-workflows/.github/actions/setup-kubernetes@v0.3.0
         with:
           go-version: 1.25.x
-          cache-dependency-path: |
-            **/go.sum
-            **/go.mod
-      - name: Setup Kubernetes
-        uses: helm/kind-action@a1b0e391336a6ee6713a0583f8c6240d70863de3 # v1.12.0
-        with:
-          version: v0.20.0
-          cluster_name: kind
-          node_image: kindest/node:v1.27.3@sha256:3966ac761ae0136263ffdb6cfd4db23ef8a83cba8a463690e98317add2c9ba72
-      - name: Setup Kustomize
-        uses: fluxcd/pkg/actions/kustomize@main
       - name: Enable integration tests
         # Only run integration tests for main branch
         if: github.ref == 'refs/heads/main'
@@ -72,13 +43,6 @@ jobs:
             BUILD_ARGS="--cache-from=type=local,src=/tmp/.buildx-cache \
               --cache-to=type=local,dest=/tmp/.buildx-cache-new,mode=max \
               --load"
-      - # Temp fix
-        # https://github.com/docker/build-push-action/issues/252
-        # https://github.com/moby/buildkit/issues/1896
-        name: Move cache
-        run: |
-          rm -rf /tmp/.buildx-cache
-          mv /tmp/.buildx-cache-new /tmp/.buildx-cache
       - name: Load test image
         run: kind load docker-image test/kustomize-controller:latest
       - name: Install CRDs
diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
deleted file mode 100644
index f7a1dec3..00000000
--- a/.github/workflows/nightly.yml
+++ /dev/null
@@ -1,35 +0,0 @@
-name: nightly
-on:
-  schedule:
-    - cron:  '0 0 * * *'
-  workflow_dispatch:
-
-env:
-  REPOSITORY: ${{ github.repository }}
-
-permissions:
-  contents: read # for actions/checkout to fetch code
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-      - name: Setup QEMU
-        uses: docker/setup-qemu-action@29109295f81e9208d7d86ff1c6c12d2833863392 # v3.6.0
-      - name: Setup Docker Buildx
-        id: buildx
-        uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
-        with:
-          buildkitd-flags: "--debug"
-      - name: Build multi-arch container image
-        uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6.18.0
-        with:
-          push: false
-          builder: ${{ steps.buildx.outputs.name }}
-          context: .
-          file: ./Dockerfile
-          platforms: linux/amd64,linux/arm/v7,linux/arm64
-          tags: |
-            ${{ env.REPOSITORY }}:nightly
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 983d8443..ffb1c3cd 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -9,113 +9,19 @@ on:
         description: 'image tag prefix'
         default: 'rc'
         required: true
-
-permissions:
-  contents: read
-
-env:
-  CONTROLLER: ${{ github.event.repository.name }}
-
 jobs:
   release:
-    outputs:
-      hashes: ${{ steps.slsa.outputs.hashes }}
-      image_url: ${{ steps.slsa.outputs.image_url }}
-      image_digest: ${{ steps.slsa.outputs.image_digest }}
-    runs-on: ubuntu-latest
     permissions:
       contents: write # for creating the GitHub release.
       id-token: write # for creating OIDC tokens for signing.
       packages: write # for pushing and signing container images.
-    steps:
-      - name: Checkout
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-      - name: Setup Kustomize
-        uses: fluxcd/pkg/actions/kustomize@main
-      - name: Prepare
-        id: prep
-        run: |
-          VERSION="${{ github.event.inputs.tag }}-${GITHUB_SHA::8}"
-          if [[ $GITHUB_REF == refs/tags/* ]]; then
-            VERSION=${GITHUB_REF/refs\/tags\//}
-          fi
-          echo "BUILD_DATE=$(date -u +'%Y-%m-%dT%H:%M:%SZ')" >> $GITHUB_OUTPUT
-          echo "VERSION=${VERSION}" >> $GITHUB_OUTPUT
-      - name: Setup QEMU
-        uses: docker/setup-qemu-action@29109295f81e9208d7d86ff1c6c12d2833863392 # v3.6.0
-      - name: Setup Docker Buildx
-        id: buildx
-        uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1
-      - name: Login to GitHub Container Registry
-        uses: docker/login-action@184bdaa0721073962dff0199f1fb9940f07167d1 # v3.5.0
-        with:
-          registry: ghcr.io
-          username: fluxcdbot
-          password: ${{ secrets.GHCR_TOKEN }}
-      - name: Login to Docker Hub
-        uses: docker/login-action@184bdaa0721073962dff0199f1fb9940f07167d1 # v3.5.0
-        with:
-          username: fluxcdbot
-          password: ${{ secrets.DOCKER_FLUXCD_PASSWORD }}
-      - name: Generate images meta
-        id: meta
-        uses: docker/metadata-action@c1e51972afc2121e065aed6d45c65596fe445f3f # v5.8.0
-        with:
-          images: |
-            fluxcd/${{ env.CONTROLLER }}
-            ghcr.io/fluxcd/${{ env.CONTROLLER }}
-          tags: |
-            type=raw,value=${{ steps.prep.outputs.VERSION }}
-      - name: Publish images
-        id: build-push
-        uses: docker/build-push-action@263435318d21b8e681c14492fe198d362a7d2c83 # v6.18.0
-        with:
-          sbom: true
-          provenance: true
-          push: true
-          builder: ${{ steps.buildx.outputs.name }}
-          context: .
-          file: ./Dockerfile
-          platforms: linux/amd64,linux/arm/v7,linux/arm64
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
-      - uses: sigstore/cosign-installer@d58896d6a1865668819e1d91763c7751a165e159 # v3.9.2
-      - name: Sign images
-        env:
-          COSIGN_EXPERIMENTAL: 1
-        run: |
-          cosign sign --yes fluxcd/${{ env.CONTROLLER }}@${{ steps.build-push.outputs.digest }}
-          cosign sign --yes ghcr.io/fluxcd/${{ env.CONTROLLER }}@${{ steps.build-push.outputs.digest }}
-      - name: Generate release artifacts
-        if: startsWith(github.ref, 'refs/tags/v')
-        run: |
-          mkdir -p config/release
-          kustomize build ./config/crd > ./config/release/${{ env.CONTROLLER }}.crds.yaml
-          kustomize build ./config/manager > ./config/release/${{ env.CONTROLLER }}.deployment.yaml
-      - uses: anchore/sbom-action/download-syft@da167eac915b4e86f08b264dbdbc867b61be6f0c # v0.20.5
-      - name: Create release and SBOM
-        id: run-goreleaser
-        if: startsWith(github.ref, 'refs/tags/v')
-        uses: goreleaser/goreleaser-action@e435ccd777264be153ace6237001ef4d979d3a7a # v6.4.0
-        with:
-          version: latest
-          args: release --clean --skip=validate
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      - name: Generate SLSA metadata
-        id: slsa
-        env:
-          ARTIFACTS: "${{ steps.run-goreleaser.outputs.artifacts }}"
-        run: |
-          hashes=$(echo $ARTIFACTS | jq --raw-output '.[] | {name, "digest": (.extra.Digest // .extra.Checksum)} | select(.digest) | {digest} + {name} | join("  ") | sub("^sha256:";"")' | base64 -w0)
-          echo "hashes=$hashes" >> $GITHUB_OUTPUT
-          
-          image_url=fluxcd/${{ env.CONTROLLER }}:${{ steps.prep.outputs.version }}
-          echo "image_url=$image_url" >> $GITHUB_OUTPUT
-          
-          image_digest=${{ steps.build-push.outputs.digest }}
-          echo "image_digest=$image_digest" >> $GITHUB_OUTPUT
-
+    uses: fluxcd/gha-workflows/.github/workflows/controller-release.yaml@v0.3.0
+    with:
+      controller: ${{ github.event.repository.name }}
+      release-candidate-prefix: ${{ github.event.inputs.tag }}
+    secrets:
+      github-token: ${{ secrets.GITHUB_TOKEN }}
+      dockerhub-token: ${{ secrets.DOCKER_FLUXCD_PASSWORD }}
   release-provenance:
     needs: [release]
     permissions:
@@ -128,10 +34,10 @@ jobs:
       provenance-name: "provenance.intoto.jsonl"
       base64-subjects: "${{ needs.release.outputs.hashes }}"
       upload-assets: true
-
   dockerhub-provenance:
     needs: [release]
     permissions:
+      contents: read # for reading the repository code.
       actions: read # for detecting the Github Actions environment.
       id-token: write # for creating OIDC tokens for signing.
       packages: write # for uploading attestations.
@@ -143,10 +49,10 @@ jobs:
       registry-username: fluxcdbot
     secrets:
       registry-password: ${{ secrets.DOCKER_FLUXCD_PASSWORD }}
-
   ghcr-provenance:
     needs: [release]
     permissions:
+      contents: read # for reading the repository code.
       actions: read # for detecting the Github Actions environment.
       id-token: write # for creating OIDC tokens for signing.
       packages: write # for uploading attestations.
diff --git a/.github/workflows/scan.yml b/.github/workflows/scan.yml
index 0476fbb4..4d7f2b0f 100644
--- a/.github/workflows/scan.yml
+++ b/.github/workflows/scan.yml
@@ -1,5 +1,4 @@
 name: scan
-
 on:
   push:
     branches: [ main ]
@@ -7,46 +6,12 @@ on:
     branches: [ main ]
   schedule:
     - cron: '18 10 * * 3'
-
-permissions:
-  contents: read # for actions/checkout to fetch code
-  security-events: write # for codeQL to write security events
-
 jobs:
-  fossa:
-    name: FOSSA
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-      - name: Run FOSSA scan and upload build data
-        uses: fossa-contrib/fossa-action@3d2ef181b1820d6dcd1972f86a767d18167fa19b # v3.0.1
-        with:
-          # FOSSA Push-Only API Token
-          fossa-api-key: 5ee8bf422db1471e0bcf2bcb289185de
-          github-token: ${{ github.token }}
-
-  codeql:
-    name: CodeQL
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-      - name: Setup Go
-        uses: actions/setup-go@d35c59abb061a4a6fb18e82ac0862c26744d6ab5 # v5.5.0
-        with:
-          go-version: 1.25.x
-          cache-dependency-path: |
-            **/go.sum
-            **/go.mod
-      - name: Initialize CodeQL
-        uses: github/codeql-action/init@3c3833e0f8c1c83d449a7478aa59c036a9165498 # v3.29.11
-        with:
-          languages: go
-          # xref: https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-code-scanning#using-queries-in-ql-packs
-          # xref: https://codeql.github.com/codeql-query-help/go/
-          queries: security-and-quality
-      - name: Autobuild
-        uses: github/codeql-action/autobuild@3c3833e0f8c1c83d449a7478aa59c036a9165498 # v3.29.11
-      - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@3c3833e0f8c1c83d449a7478aa59c036a9165498 # v3.29.11
+  analyze:
+    permissions:
+      contents: read # for reading the repository code.
+      security-events: write # for uploading the CodeQL analysis results.
+    uses: fluxcd/gha-workflows/.github/workflows/code-scan.yaml@v0.3.0
+    secrets:
+      github-token: ${{ secrets.GITHUB_TOKEN }}
+      fossa-token: ${{ secrets.FOSSA_TOKEN }}
diff --git a/.github/workflows/sync-labels.yaml b/.github/workflows/sync-labels.yaml
index 22925706..cc69156a 100644
--- a/.github/workflows/sync-labels.yaml
+++ b/.github/workflows/sync-labels.yaml
@@ -6,23 +6,11 @@ on:
       - main
     paths:
       - .github/labels.yaml
-
-permissions:
-  contents: read
-
 jobs:
-  labels:
-    name: Run sync
-    runs-on: ubuntu-latest
+  sync-labels:
     permissions:
-      issues: write
-    steps:
-      - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-      - uses: EndBug/label-sync@52074158190acb45f3077f9099fea818aa43f97a # v2.3.3
-        with:
-          # Configuration file
-          config-file: |
-            https://raw.githubusercontent.com/fluxcd/community/main/.github/standard-labels.yaml
-            .github/labels.yaml
-          # Strictly declarative
-          delete-other-labels: true
+      contents: read # for reading the labels file.
+      issues: write # for creating and updating labels.
+    uses: fluxcd/gha-workflows/.github/workflows/labels-sync.yaml@v0.3.0
+    secrets:
+      github-token: ${{ secrets.GITHUB_TOKEN }}