diff --git a/.github/workflows/ecosystem-ci.yml b/.github/workflows/ecosystem-ci.yml
index f00390b..74f0c3d 100644
--- a/.github/workflows/ecosystem-ci.yml
+++ b/.github/workflows/ecosystem-ci.yml
@@ -43,34 +43,27 @@ jobs:
           name: oxlint
           path: ./target/release/oxlint
 
-  test-ecosystem:
+  checkout:
+    namme: Checkout
     needs: build
+    runs-on: ubuntu-latest
+    outputs:
+      matrix: ${{ steps.setmatrix.outputs.matrix }}
+    steps:
+      - uses: taiki-e/checkout-action@v1
+      - id: setmatrix
+      run: |
+        matrix=$(cat ./matrix.json)
+        echo "::set-output name=matrix::$matrix"
+
+  test-ecosystem:
+    needs: checkout
     timeout-minutes: 30
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
-        include:
-          - repository: rolldown/rolldown
-            ref: main
-            path: rolldown
-            command: ./oxlint --deny-warnings --ignore-path=.oxlintignore --import-plugin
-
-          - repository: napi-rs/napi-rs
-            ref: main
-            path: napi-rs
-            command: ./oxlint --deny-warnings --ignore-path=.oxlintignore --import-plugin -D correctness -A no-export
-
-          - repository: toeverything/affine
-            ref: canary
-            path: affine
-            command: ./oxlint --deny-warnings -c oxlint.json --import-plugin -D correctness -D perf
-
-          - repository: preactjs/preact
-            ref: main
-            path: preact
-            command: ./oxlint --deny-warnings -c oxlint.json oxlint src test debug compat hooks test-utils
-
+        include: ${{fromJson(needs.checkout.outputs.matrix)}}
     name: ${{ matrix.repository }}
     steps:
       - name: Clone ${{ matrix.repository }}
diff --git a/matrix.json b/matrix.json
new file mode 100644
index 0000000..4bfad4d
--- /dev/null
+++ b/matrix.json
@@ -0,0 +1,26 @@
+[
+  {
+    "repository": "rolldown/rolldown",
+    "ref": "main",
+    "path": "rolldown",
+    "command": "./oxlint --deny-warnings --ignore-path=.oxlintignore --import-plugin"
+  },
+  {
+    "repository": "napi-rs/napi-rs",
+    "ref": "main",
+    "path": "napi-rs",
+    "command": "./oxlint --deny-warnings --ignore-path=.oxlintignore --import-plugin -D correctness -A no-export"
+  },
+  {
+    "repository": "toeverything/affine",
+    "ref": "canary",
+    "path": "affine",
+    "command": "./oxlint --deny-warnings -c oxlint.json --import-plugin -D correctness -D perf"
+  },
+  {
+    "repository": "preactjs/preact",
+    "ref": "main",
+    "path": "preact",
+    "command": "./oxlint --deny-warnings -c oxlint.json oxlint src test debug compat hooks test-utils"
+  }
+]