diff --git a/.github/workflows/mac-testing.yml b/.github/workflows/mac-testing.yml
new file mode 100644
index 00000000..460e4b86
--- /dev/null
+++ b/.github/workflows/mac-testing.yml
@@ -0,0 +1,15 @@
+name: Manual trigger
+on:
+  push:
+    paths:
+      - '.github/workflows/mac-testing.yml'
+jobs:
+    hello:
+        runs-on: [self-hosted, macOS, ARM64]
+        steps:
+        - name: Checkout TensorFlow IO
+          uses: actions/checkout@v3
+          with:
+            repository: tensorflow/io
+        - name: Hello Step
+          run: echo "Hello world!"
diff --git a/tf_sig_build_dockerfiles/devel.usertools/cpu.bazelrc b/tf_sig_build_dockerfiles/devel.usertools/cpu.bazelrc
index 318467a3..5e5020e9 100644
--- a/tf_sig_build_dockerfiles/devel.usertools/cpu.bazelrc
+++ b/tf_sig_build_dockerfiles/devel.usertools/cpu.bazelrc
@@ -91,6 +91,7 @@ build:rbe --bes_timeout=600s
 build:rbe --define=EXECUTOR=remote
 build:rbe --distinct_host_configuration=false
 build:rbe --flaky_test_attempts=3
+build:rbe --jobs=800
 build:rbe --remote_executor=grpcs://remotebuildexecution.googleapis.com
 build:rbe --remote_timeout=3600
 build:rbe --spawn_strategy=remote,worker,standalone,local
diff --git a/tf_sig_build_dockerfiles/devel.usertools/gpu.bazelrc b/tf_sig_build_dockerfiles/devel.usertools/gpu.bazelrc
index 8666ed58..d2ecb013 100644
--- a/tf_sig_build_dockerfiles/devel.usertools/gpu.bazelrc
+++ b/tf_sig_build_dockerfiles/devel.usertools/gpu.bazelrc
@@ -112,7 +112,7 @@ build:rbe --bes_timeout=600s
 build:rbe --define=EXECUTOR=remote
 build:rbe --distinct_host_configuration=false
 build:rbe --flaky_test_attempts=3
-build:rbe --jobs=1000
+build:rbe --jobs=800
 build:rbe --remote_executor=grpcs://remotebuildexecution.googleapis.com
 build:rbe --remote_timeout=3600
 build:rbe --spawn_strategy=remote,worker,standalone,local