diff --git a/.github/workflows/testing-framework.yaml b/.github/workflows/testing-framework.yaml
index be949d8b6..9d0640460 100644
--- a/.github/workflows/testing-framework.yaml
+++ b/.github/workflows/testing-framework.yaml
@@ -6,9 +6,9 @@ on:
   
   workflow_dispatch:
 
-  # pull_request: ## temporary for debugging development purposes
-  #   branches:
-  #     - main
+  pull_request: ## temporary for debugging development purposes
+    branches:
+      - main
 
 env:
   TF_VAR_aws_region: "eu-west-2"
@@ -31,6 +31,16 @@ jobs:
   integration-tests:
     if: github.repository == 'containers/ai-lab-recipes'
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - arch: amd64
+            aws_image_type: t3a.medium	
+            aws_ami_architecture: x86_64
+          - arch: arm64
+            aws_image_type: m7g.medium
+            aws_ami_architecture: arm64
     steps:
       - uses: actions/checkout@v4.1.1
         with:
@@ -58,6 +68,9 @@ jobs:
         id: up
         run: terraform apply -auto-approve -lock=false
         working-directory: terraform-test-environment-module
+        env:
+          TF_VAR_aws_instance_type: ${{ matrix.aws_image_type }}
+          TF_VAR_aws_ami_architecture: ${{ matrix.aws_ami_architecture }}
       
       - name: Terraform Output
         id: terraform-output
@@ -76,7 +89,7 @@ jobs:
         run: make install
 
       - name: Wait for the user data script to finish
-        run: sleep 240
+        run: sleep 300
 
       - name: Run Integration Tests
         working-directory: ./main/recipes/natural_language_processing/chatbot
@@ -89,6 +102,9 @@ jobs:
         if: always()
         run: terraform destroy -auto-approve -lock=false
         working-directory: terraform-test-environment-module
+        env:
+          TF_VAR_aws_instance_type: ${{ matrix.aws_image_type }}
+          TF_VAR_aws_ami_architecture: ${{ matrix.aws_ami_architecture }}
       
       - name: Publish Job Results to Slack
         id: slack