diff --git a/.github/workflows/check-clang-format.yml b/.github/workflows/check-clang-format.yml
index ffe50598ae..5a11e3c696 100644
--- a/.github/workflows/check-clang-format.yml
+++ b/.github/workflows/check-clang-format.yml
@@ -3,7 +3,13 @@
 name: Clang Format
 
 # This workflow can only be triggered by other workflows.
-on: workflow_call
+on:
+  workflow_call:
+    inputs:
+      runner:
+        description: 'A string representing the GitHub runner to use.'
+        required: true
+        type: string
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
@@ -15,7 +21,7 @@ defaults:
 
 jobs:
   clang-format:
-    runs-on: ubuntu-latest
+    runs-on: ${{ inputs.runner }}
     container: ghcr.io/xrplf/ci/tools-rippled-clang-format
     steps:
       # The $GITHUB_WORKSPACE and ${{ github.workspace }} might not point to the
diff --git a/.github/workflows/check-levelization.yml b/.github/workflows/check-levelization.yml
index cd6d704acd..8f47995505 100644
--- a/.github/workflows/check-levelization.yml
+++ b/.github/workflows/check-levelization.yml
@@ -3,7 +3,13 @@
 name: Levelization
 
 # This workflow can only be triggered by other workflows.
-on: workflow_call
+on:
+  workflow_call:
+    inputs:
+      runner:
+        description: 'A string representing the GitHub runner to use.'
+        required: true
+        type: string
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}
@@ -15,7 +21,7 @@ defaults:
 
 jobs:
   levelization:
-    runs-on: ubuntu-latest
+    runs-on: ${{ inputs.runner }}
     steps:
       - name: Checkout repository
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 643ebea5ce..657cd06e91 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -23,72 +23,97 @@ env:
   # The Conan remote where the dependencies will be cached.
   CONAN_REMOTE_NAME: xrplf
   CONAN_REMOTE_URL: https://conan.ripplex.io
+  # The default runner for the jobs. This can be overridden in individual jobs.
+  RUNNER: ubuntu-latest
 
 jobs:
+  # This job exposes the environment variables that will be used by other jobs.
+  # It is a workaround for the env-context not being available in the 'with'
+  # steps when calling other workflows.
+  env-vars:
+    runs-on: ${{ env.RUNNER }}
+    steps:
+      - run: echo "Exposing environment variables."
+    outputs:
+      conan_remote_name: ${{ env.CONAN_REMOTE_NAME }}
+      conan_remote_url: ${{ env.CONAN_REMOTE_URL }}
+      runner: ${{ env.RUNNER }}
+
   check-clang-format:
+    needs: env-vars
     if: github.event.pull_request.draft == false || contains(github.event.pull_request.labels.*.name, 'DraftRunCI')
     uses: ./.github/workflows/check-clang-format.yml
+    with:
+      runner: ${{ needs.env-vars.outputs.runner }}
 
   check-levelization:
+    needs: env-vars
     if: github.event.pull_request.draft == false || contains(github.event.pull_request.labels.*.name, 'DraftRunCI')
     uses: ./.github/workflows/check-levelization.yml
+    with:
+      runner: ${{ needs.env-vars.outputs.runner }}
 
   debian:
     needs:
+      - env-vars
       - check-clang-format
       - check-levelization
     uses: ./.github/workflows/build-debian.yml
     with:
-      conan_remote_name: ${{ env.CONAN_REMOTE_NAME }}
-      conan_remote_url: ${{ env.CONAN_REMOTE_URL }}
+      conan_remote_name: ${{ needs.env-vars.outputs.conan_remote_name }}
+      conan_remote_url: ${{ needs.env-vars.outputs.conan_remote_url }}
     secrets:
       conan_username: ${{ secrets.CONAN_USERNAME }}
       conan_password: ${{ secrets.CONAN_PASSWORD }}
 
 #  rhel:
 #    needs:
+#      - env-vars
 #      - check-clang-format
 #      - check-levelization
 #    uses: ./.github/workflows/build-rhel.yml
 #    with:
-#      conan_remote_name: ${{ env.CONAN_REMOTE_NAME }}
-#      conan_remote_url: ${{ env.CONAN_REMOTE_URL }}
+#      conan_remote_name: ${{ needs.env-vars.outputs.conan_remote_name }}
+#      conan_remote_url: ${{ needs.env-vars.outputs.conan_remote_url }}
 #    secrets:
 #      conan_username: ${{ secrets.CONAN_USERNAME }}
 #      conan_password: ${{ secrets.CONAN_PASSWORD }}
 #
 #  ubuntu:
 #    needs:
+#      - env-vars
 #      - check-clang-format
 #      - check-levelization
 #    uses: ./.github/workflows/build-ubuntu.yml
 #    with:
-#      conan_remote_name: ${{ env.CONAN_REMOTE_NAME }}
-#      conan_remote_url: ${{ env.CONAN_REMOTE_URL }}
+#      conan_remote_name: ${{ needs.env-vars.outputs.conan_remote_name }}
+#      conan_remote_url: ${{ needs.env-vars.outputs.conan_remote_url }}
 #    secrets:
 #      conan_username: ${{ secrets.CONAN_USERNAME }}
 #      conan_password: ${{ secrets.CONAN_PASSWORD }}
 #
 #  macos:
 #    needs:
+#      - env-vars
 #      - check-clang-format
 #      - check-levelization
 #    uses: ./.github/workflows/build-macos.yml
 #    with:
-#      conan_remote_name: ${{ env.CONAN_REMOTE_NAME }}
-#      conan_remote_url: ${{ env.CONAN_REMOTE_URL }}
+#      conan_remote_name: ${{ needs.env-vars.outputs.conan_remote_name }}
+#      conan_remote_url: ${{ needs.env-vars.outputs.conan_remote_url }}
 #    secrets:
 #      conan_username: ${{ secrets.CONAN_USERNAME }}
 #      conan_password: ${{ secrets.CONAN_PASSWORD }}
 #
 #  windows:
 #    needs:
+#      - env-vars
 #      - check-clang-format
 #      - check-levelization
 #    uses: ./.github/workflows/build-windows.yml
 #    with:
-#      conan_remote_name: ${{ env.CONAN_REMOTE_NAME }}
-#      conan_remote_url: ${{ env.CONAN_REMOTE_URL }}
+#      conan_remote_name: ${{ needs.env-vars.outputs.conan_remote_name }}
+#      conan_remote_url: ${{ needs.env-vars.outputs.conan_remote_url }}
 #    secrets:
 #      conan_username: ${{ secrets.CONAN_USERNAME }}
 #      conan_password: ${{ secrets.CONAN_PASSWORD }}