💡 Comment and clean up runner config

.github/workflows/build-test.yml

@@ -18,21 +18,24 @@ concurrency:
 jobs:
   build-test:
 
-    # https://github.com/actions/runner/issues/805#issuecomment-942784948
-    # https://github.com/rolpdog/cffi-mirror/blob/release-1.15/.github/workflows/ci.yaml#L81-L141
-    # https://github.com/actions/virtual-environments/issues/2187#issuecomment-790507204
     defaults:
       run:
-        # shell: ${{ matrix.run_wrapper || 'bash --noprofile --norc -eo pipefail {0}' }}
-        # run_wrapper: arch -arm64 bash --noprofile --norc -eo pipefail {0}
+        # Prefixes all `run` commands with the following command to force them to run outside Rosetta.
+        # https://github.com/actions/runner/issues/805#issuecomment-942784948
+        # https://github.com/rolpdog/cffi-mirror/blob/release-1.15/.github/workflows/ci.yaml#L81-L141
+        # https://github.com/actions/virtual-environments/issues/2187#issuecomment-790507204
         shell: arch -arm64 bash --noprofile --norc -eo pipefail {0}
 
-    # https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners
     name: Build, Test, and Lint
+
+    # GitHub provided runners (in case we need to switch back)
+    # https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners
+    # runs-on: macos-latest
+
     # https://docs.github.com/en/actions/hosting-your-own-runners/using-self-hosted-runners-in-a-workflow
     # https://github.com/mas-cli/mas/settings/actions/runners
-    # runs-on: macos-latest
     runs-on: [self-hosted, macOS]
+
     steps:
     # https://github.com/actions/checkout#usage
     - uses: actions/checkout@v2
@@ -42,7 +45,6 @@ jobs:
 
     - name: Bootstrap
       run: script/bootstrap
-      # https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions#jobsjob_idstepsenv
 
     - name: Build
       run: script/build