diff --git a/.github/workflows/benchmark_visualization.yml b/.github/workflows/benchmark_visualization.yml
index 21993d0af..f15719419 100644
--- a/.github/workflows/benchmark_visualization.yml
+++ b/.github/workflows/benchmark_visualization.yml
@@ -17,7 +17,7 @@ env:
 
 jobs:
   benchmark:
-    runs-on: codebuild-soci-visualization-workflow-${{ github.run_id }}-${{ github.run_attempt }}-ubuntu-7.0-xlarge
+    runs-on: ${{ 'github.event.pull_request.head.repo.fork'  && 'ubuntu-22.04' || 'codebuild-soci-visualization-workflow-${{ github.run_id }}-${{ github.run_attempt }}-ubuntu-7.0-xlarge' }}
     steps:
       - name: Checkout main branch
         uses: actions/checkout@v4
@@ -37,7 +37,7 @@ jobs:
           path: ${{github.workspace}}/benchmark/performanceTest/output/results.json
 
   download-and-convert-benchmark-result-to-visualization-data:
-    runs-on: codebuild-soci-visualization-workflow-${{ github.run_id }}-${{ github.run_attempt }}-ubuntu-7.0-xlarge
+    runs-on: ${{ 'github.event.pull_request.head.repo.fork'  && 'ubuntu-22.04' || 'codebuild-soci-visualization-workflow-${{ github.run_id }}-${{ github.run_attempt }}-ubuntu-7.0-xlarge' }}
     needs: benchmark
     steps:
       - name: Checkout main branch
@@ -67,7 +67,7 @@ jobs:
 
   push-benchmark-result-gh-pages:
     name: Push benchmark result to Github-pages
-    runs-on: codebuild-soci-visualization-workflow-${{ github.run_id }}-${{ github.run_attempt }}-ubuntu-7.0-xlarge
+    runs-on: ${{ 'github.event.pull_request.head.repo.fork'  && 'ubuntu-22.04' || 'codebuild-soci-visualization-workflow-${{ github.run_id }}-${{ github.run_attempt }}-ubuntu-7.0-xlarge' }}
     needs: download-and-convert-benchmark-result-to-visualization-data
     strategy:
       matrix:
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 20b1f4640..a6e035291 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -24,7 +24,7 @@ env:
 
 jobs:
   test:
-    runs-on: codebuild-soci-build-workflow-${{ github.run_id }}-${{ github.run_attempt }}-ubuntu-7.0-xlarge
+    runs-on: ${{ 'github.event.pull_request.head.repo.full_name == github.repository'  &&  'codebuild-soci-build-workflow-${{ github.run_id }}-${{ github.run_attempt }}-ubuntu-7.0-xlarge' || 'ubuntu-22.04' }}
     timeout-minutes: 15
     steps:
       - uses: actions/checkout@v4
@@ -34,7 +34,7 @@ jobs:
       - run: make
       - run: make test
   integration:
-    runs-on: codebuild-soci-build-workflow-${{ github.run_id }}-${{ github.run_attempt }}-ubuntu-7.0-xlarge
+    runs-on: ${{ 'github.event.pull_request.head.repo.full_name == github.repository'  &&  'codebuild-soci-build-workflow-${{ github.run_id }}-${{ github.run_attempt }}-ubuntu-7.0-xlarge' || 'ubuntu-22.04' }}
     timeout-minutes: 40
     strategy:
       fail-fast: false
diff --git a/.github/workflows/bump-deps.yml b/.github/workflows/bump-deps.yml
index 8f9bc22b4..36ed0fb83 100644
--- a/.github/workflows/bump-deps.yml
+++ b/.github/workflows/bump-deps.yml
@@ -20,7 +20,7 @@ jobs:
 
     # Don't bother bumping deps on forks.
     if: ${{ github.repository == 'awslabs/soci-snapshotter' || github.event_name == 'workflow_dispatch' }}
-    runs-on: codebuild-soci-bump-dependencies-${{ github.run_id }}-${{ github.run_attempt }}-ubuntu-7.0-medium
+    runs-on: ubuntu-22.04
 
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/comparision-test.yml b/.github/workflows/comparision-test.yml
index 8033c8b8e..d0eee9289 100644
--- a/.github/workflows/comparision-test.yml
+++ b/.github/workflows/comparision-test.yml
@@ -9,7 +9,7 @@ env:
 
 jobs:
   check:
-    runs-on: codebuild-soci-comparision-test-${{ github.run_id }}-${{ github.run_attempt }}-ubuntu-7.0-xlarge
+    runs-on: ${{ 'github.event.pull_request.head.repo.fork '  && 'ubuntu-22.04' || 'codebuild-soci-comparision-test-${{ github.run_id }}-${{ github.run_attempt }}-ubuntu-7.0-xlarge' }}
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-go@v5
diff --git a/.github/workflows/prebuild.yml b/.github/workflows/prebuild.yml
index 7c7bc8ef8..dd349217c 100644
--- a/.github/workflows/prebuild.yml
+++ b/.github/workflows/prebuild.yml
@@ -12,7 +12,7 @@ env:
 
 jobs:
   check:
-    runs-on: codebuild-soci-prebuild-workflow-${{ github.run_id }}-${{ github.run_attempt }}-ubuntu-7.0-small
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
         with:
@@ -32,7 +32,7 @@ jobs:
       - run: PATH=$PATH:$(pwd) ./scripts/check-flatc.sh
 
   git-secrets:
-    runs-on: codebuild-soci-prebuild-workflow-${{ github.run_id }}-${{ github.run_attempt }}-ubuntu-7.0-small
+    runs-on: ubuntu-22.04
     steps:
       - name: Pull latest awslabs/git-secrets repo
         uses: actions/checkout@v4
@@ -54,7 +54,7 @@ jobs:
     strategy:
       matrix:
         working_dir: ['.', 'cmd']
-    runs-on: codebuild-soci-prebuild-workflow-${{ github.run_id }}-${{ github.run_attempt }}-ubuntu-7.0-small
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
       - uses: golangci/golangci-lint-action@v6
@@ -64,13 +64,14 @@ jobs:
 
   yamllint:
     name: yamllint-lint
-    runs-on: codebuild-soci-prebuild-workflow-${{ github.run_id }}-${{ github.run_attempt }}-ubuntu-7.0-small
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
+      - run: pip install yamllint
       - run: yamllint .
 
   shellcheck:
-    runs-on: codebuild-soci-prebuild-workflow-${{ github.run_id }}-${{ github.run_attempt }}-ubuntu-7.0-small
+    runs-on: ubuntu-22.04
     container: koalaman/shellcheck-alpine:v0.10.0
     steps:
       - uses: actions/checkout@v4
diff --git a/.github/workflows/releases.yml b/.github/workflows/releases.yml
index fd42c2a18..080e47a47 100644
--- a/.github/workflows/releases.yml
+++ b/.github/workflows/releases.yml
@@ -20,7 +20,7 @@ permissions:
 
 jobs:
   generate-artifacts:
-    runs-on: codebuild-soci-release-workflow-${{ github.run_id }}-${{ github.run_attempt }}-ubuntu-7.0-xlarge
+    runs-on: ubuntu-22.04
     env:
       # Set during setup.
       RELEASE_TAG: ''
@@ -60,7 +60,7 @@ jobs:
 
   validate-artifacts:
     needs: generate-artifacts
-    runs-on: codebuild-soci-release-workflow-${{ github.run_id }}-${{ github.run_attempt }}-ubuntu-7.0-xlarge
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
       - uses: actions/download-artifact@v4
@@ -72,7 +72,7 @@ jobs:
   create-release:
     if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/v')
     needs: [generate-artifacts, validate-artifacts]
-    runs-on: codebuild-soci-release-workflow-${{ github.run_id }}-${{ github.run_attempt }}-ubuntu-7.0-xlarge
+    runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v4
       - uses: actions/download-artifact@v4