diff --git a/.github/workflows/run-tests.yaml b/.github/workflows/run-tests.yaml
index 1b833bd..08efdb0 100644
--- a/.github/workflows/run-tests.yaml
+++ b/.github/workflows/run-tests.yaml
@@ -17,27 +17,42 @@ jobs:
   build:
     strategy:
       matrix:
-        platform: [["linux-64", "ubuntu-latest"], ["osx-64", "macos-latest"]]
-    runs-on: ${{ matrix.platform[1] }}
+        platform: ["linux-64", "osx-arm64", "osx-64"]
+        include:
+          - platform: "linux-64"
+            runs-on: "ubuntu-latest"
+          - platform: "osx-arm64"
+            runs-on: "macos-latest"
+          - platform: "osx-64"
+            runs-on: "macos-26-intel"
+    runs-on: ${{ matrix.runs-on }}
     if: "!startsWith(github.head_ref, 'release-please')"
     steps:
       - uses: actions/checkout@v4
 
       - uses: ./.github/actions/build-gk
         with:
-          platform: ${{ matrix.platform[0] }}
+          platform: ${{ matrix.platform }}
 
   test:
     needs: build
     strategy:
       matrix:
-        include:
-          - {"pyver-short": "310", "python-version": "3.10", "platform": "linux-64", "runs-on": "ubuntu-latest"}
-          - {"pyver-short": "310", "python-version": "3.10", "platform": "osx-64", "runs-on": "macos-latest"}
-          - {"pyver-short": "311", "python-version": "3.11", "platform": "linux-64", "runs-on": "ubuntu-latest"}
-          - {"pyver-short": "311", "python-version": "3.11", "platform": "osx-64", "runs-on": "macos-latest"}
-          - {"pyver-short": "312", "python-version": "3.12", "platform": "linux-64", "runs-on": "ubuntu-latest"}
-          - {"pyver-short": "312", "python-version": "3.12", "platform": "osx-64", "runs-on": "macos-latest"}
+        python-version: ['3.10', '3.11', '3.12']
+        platform: ["linux-64", "osx-arm64", "osx-64"]
+        include: # specify additional fields for all configs
+          - python-version: "3.10"
+            pyver-short: "310"
+          - python-version: "3.11"
+            pyver-short: "311"
+          - python-version: "3.12"
+            pyver-short: "312"
+          - platform: "osx-arm64"
+            runs-on: "macos-latest"
+          - platform: "osx-64"
+            runs-on: "macos-26-intel"
+          - platform: "linux-64"
+            runs-on: "ubuntu-latest"
     runs-on: ${{ matrix.runs-on }}
     steps:
       - uses: actions/checkout@v4