diff --git a/.github/workflows/ci-arm.yml b/.github/workflows/ci-arm.yml
index 2828c3d3289..6ddc01acf9a 100644
--- a/.github/workflows/ci-arm.yml
+++ b/.github/workflows/ci-arm.yml
@@ -1,7 +1,9 @@
 name: CI (ARM)
 on:
   push:
-    branches: [disabled]
+    branches:
+      - master
+      - '*/*arm-build'
   workflow_dispatch:
     inputs: {}
 concurrency:
@@ -12,7 +14,7 @@ env:
   DOCKERHUB_PASSWORD: "${{ secrets.DOCKERHUB_PASSWORD }}"
   RUN_ID: ${{ github.run_id }}
   RUN_ATTEMPT: ${{ github.run_attempt }}
-  USERNAME: ${{ github.event.pull_request.user.login || github.actor }}
+  USERNAME: master
   GITHUB_TOKEN: ${{ github.token }}
   GH_SELF_HOSTED_RUNNER_TOKEN: ${{ secrets.GH_SELF_HOSTED_RUNNER_TOKEN }}
   AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
@@ -31,7 +33,7 @@ jobs:
         timeout-minutes: 40
         uses: ./.github/ensure-builder
         with:
-          runner_type: builder-x86
+          runner_type: builder-arm
           run: |
             set -eux
             git submodule update --init --recursive --recommend-shallow
@@ -46,11 +48,12 @@ jobs:
       - uses: actions/checkout@v4
         with: { ref: "${{ github.event.pull_request.head.sha }}" }
       - name: "Test"
-        timeout-minutes: 15
+        timeout-minutes: 25
         uses: ./.github/ensure-builder
         with:
-          runner_type: builder-x86
+          runner_type: builder-arm
           run: |
+            sudo shutdown -P 25 # hack until core part of the scripts
             set -eux
             echo ${{ secrets.DOCKERHUB_PASSWORD }} | docker login -u aztecprotocolci --password-stdin
             scripts/earthly-ci -P --no-output ./yarn-project/end-to-end/+uniswap-trade-on-l1-from-l2