diff --git a/.github/workflows/linux.yaml b/.github/workflows/linux.yaml
new file mode 100644
index 000000000..ceecb3e5f
--- /dev/null
+++ b/.github/workflows/linux.yaml
@@ -0,0 +1,32 @@
+name: Linux
+
+on: [push, pull_request]
+jobs:
+  build:
+    name: >-
+      Linux | Ruby: ${{ matrix.ruby }}
+    runs-on: "ubuntu-latest"
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby: ["2.4.x", "2.5.x", "2.6.x", "9.9.x"]
+    steps:
+      - name: repo checkout
+        uses: actions/checkout@v1
+        with:
+          fetch-depth: 10
+      - name: load ruby, update gcc
+        uses: MSP-Greg/actions-ruby@master
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          base: update
+      - name: update RubyGems, Bundler
+        run: gem update --system --no-document --conservative
+      - name: bundle install
+        run: bundle install --jobs=3 --retry=3
+      - name: test
+        run: |
+          ruby -v
+          bundle exec rake
+        env:
+          CI: true
diff --git a/.github/workflows/macos.yaml b/.github/workflows/macos.yaml
new file mode 100644
index 000000000..49e6c4a8d
--- /dev/null
+++ b/.github/workflows/macos.yaml
@@ -0,0 +1,32 @@
+name: macOS
+
+on: [push, pull_request]
+jobs:
+  build:
+    name: >-
+      macOS | Ruby: ${{ matrix.ruby }}
+    runs-on: "macos-latest"
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby: ["2.4.x", "2.5.x", "2.6.x", "9.9.x"]
+    steps:
+      - name: repo checkout
+        uses: actions/checkout@v1
+        with:
+          fetch-depth: 10
+      - name: load ruby, update gcc
+        uses: MSP-Greg/actions-ruby@master
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          base: update
+      - name: update RubyGems, Bundler
+        run: gem update --system --no-document --conservative
+      - name: bundle install
+        run: bundle install --jobs=3 --retry=3
+      - name: test
+        run: |
+          ruby -v
+          bundle exec rake
+        env:
+          CI: true
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 3d7ba8301..ab81830fd 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -4,12 +4,12 @@ on: [push, pull_request]
 jobs:
   build:
     name: >-
-      windows-latest  Ruby: ${{ matrix.ruby }}
-    runs-on: 'windows-latest'
+      Windows | Ruby: ${{ matrix.ruby }}
+    runs-on: "windows-latest"
     strategy:
       fail-fast: false
       matrix:
-        ruby: [ '2.4.x', '2.5.x', '2.6.x', '9.9.x' ]
+        ruby: ["2.4.x", "2.5.x", "2.6.x", "9.9.x"]
     steps:
       - name: repo checkout
         uses: actions/checkout@v1
@@ -21,11 +21,11 @@ jobs:
           ruby-version: ${{ matrix.ruby }}
           base: update
       - name: update RubyGems, Bundler
-        run:  gem update --system --no-document --conservative
+        run: gem update --system --no-document --conservative
       - name: bundle install
-        run:  bundle install --jobs=3 --retry=3
+        run: bundle install --jobs=3 --retry=3
       - name: test
-        run:  |
+        run: |
           ruby -v
           bundle exec rake
         env: