diff --git a/.github/workflows/build-and-test-main.yml b/.github/workflows/build-and-test-main.yml
index 855d976dec7..e0f49048903 100644
--- a/.github/workflows/build-and-test-main.yml
+++ b/.github/workflows/build-and-test-main.yml
@@ -9,25 +9,22 @@ jobs:
     if: github.repository == 'rr-debugger/rr'
     steps:
       - id: generate
-        name: Generate runner ID
+        name: Generate runner label
         run: |
-          RUNNER_ID=rr_runner_$(uuidgen|tr -d -)
-          echo "RUNNER_ID=$RUNNER_ID" >> "$GITHUB_OUTPUT"
-      - name: Start x86-64 runner
+          RUNNER_LABEL=rr_runner_$(uuidgen|tr -d -)
+          echo "RUNNER_LABEL=$RUNNER_LABEL" >> "$GITHUB_OUTPUT"
+      - name: Start runners
         run: |2-
-          curl --fail -s -X POST -H "Content-Type: application/json" --data "{\"operation\": \"create\", \"architecture\":\"x86_64\", \"label\": \"${{ steps.generate.outputs.RUNNER_ID }}_x86_64\"}" https://gztdxwrnjh46z4ucjge5m4pxhu0vtfzs.lambda-url.us-east-2.on.aws
-      - name: Start arm64 runner
-        run: |2-
-          curl --fail -s -X POST -H "Content-Type: application/json" --data "{\"operation\": \"create\", \"architecture\":\"arm64\", \"label\": \"${{ steps.generate.outputs.RUNNER_ID }}_arm64\"}" https://gztdxwrnjh46z4ucjge5m4pxhu0vtfzs.lambda-url.us-east-2.on.aws
+          curl --fail -s -X POST -H "Content-Type: application/json" --data "{\"operation\": \"create\", \"architectures\":[\"x86_64\", \"arm64\"], \"label\": \"${{ steps.generate.outputs.RUNNER_LABEL }}\"}" https://bqugdqmvcql6yvz4i362qohyea0namsk.lambda-url.us-east-2.on.aws
     outputs:
-      RUNNER_ID: ${{ steps.generate.outputs.RUNNER_ID }}
+      RUNNER_LABEL: ${{ steps.generate.outputs.RUNNER_LABEL }}
 
   x86-64:
     uses: ./.github/workflows/build-and-test.yml
     needs: setup
     if: github.repository == 'rr-debugger/rr'
     with:
-      runner_id: ${{ needs.setup.outputs.RUNNER_ID }}_x86_64
+      label: ${{ needs.setup.outputs.RUNNER_LABEL }}
       architecture: x86_64
 
   arm64:
@@ -35,7 +32,7 @@ jobs:
     needs: setup
     if: github.repository == 'rr-debugger/rr'
     with:
-      runner_id: ${{ needs.setup.outputs.RUNNER_ID }}_arm64
+      label: ${{ needs.setup.outputs.RUNNER_LABEL }}
       architecture: arm64
 
   stop-runners:
@@ -49,4 +46,4 @@ jobs:
     steps:
       - name: "Stop runners"
         run: |2-
-          curl --fail -s -X POST -H "Content-Type: application/json" --data "{\"operation\": \"destroy\", \"labels\": [\"${{ needs.setup.outputs.RUNNER_ID }}_x86_64\", \"${{ needs.setup.outputs.RUNNER_ID }}_arm64\"]}" https://gztdxwrnjh46z4ucjge5m4pxhu0vtfzs.lambda-url.us-east-2.on.aws
+          curl --fail -s -X POST -H "Content-Type: application/json" --data "{\"operation\": \"destroy\", \"label\": \"${{ needs.setup.outputs.RUNNER_LABEL }}\"}" https://bqugdqmvcql6yvz4i362qohyea0namsk.lambda-url.us-east-2.on.aws
diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
index 2ad252fdf08..ba10885bd58 100644
--- a/.github/workflows/build-and-test.yml
+++ b/.github/workflows/build-and-test.yml
@@ -3,7 +3,7 @@ name: Build and test on runner
 on:
   workflow_call:
     inputs:
-      runner_id:
+      label:
         required: true
         type: string
       architecture:
@@ -14,7 +14,8 @@ jobs:
   build-and-test:
     name: On runner
     runs-on:
-      - ${{ inputs.runner_id }}
+      - ${{ inputs.label }}
+      - arch_${{ inputs.architecture }}
     steps:
       - name: Checkout
         uses: actions/checkout@v4
diff --git a/scripts/github-actions-build.sh b/scripts/github-actions-build.sh
index ee6b5c070d9..526f10aae5d 100755
--- a/scripts/github-actions-build.sh
+++ b/scripts/github-actions-build.sh
@@ -5,13 +5,18 @@ set -e # default to exiting on error"
 
 uname -a
 
+df -h
+
 EXTRA_PACKAGES=
 MACHINE_TYPE=`uname -m`
 if [ $MACHINE_TYPE == 'x86_64' ]; then
   EXTRA_PACKAGES=g++-multilib
 fi
 
+sudo apt-get update -y
+sudo apt-get dist-upgrade -f -y
 sudo apt-get install -y $EXTRA_PACKAGES cmake g++ pkg-config zlib1g-dev git python-dev-is-python3 libacl1-dev ninja-build manpages-dev capnproto libcapnp-dev gdb lldb python3-pexpect libzstd1 libzstd-dev
+sudo apt-get clean
 
 mkdir obj
 cd obj