diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 65f3397..7006dd4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -10,17 +10,11 @@ jobs:
   generate-matrix:
     name: "Generate matrix from cabal"
     runs-on: ubuntu-latest
-    outputs:
-      matrix: ${{ steps.set-matrix.outputs.matrix }}
     steps:
-      - name: Checkout base repo
-        uses: actions/checkout@v4
-      - name: Extract the tested GHC versions
-        id: set-matrix
-        run: |
-          wget https://github.com/Kleidukos/get-tested/releases/download/v0.1.5.0/get-tested-0.1.5.0-linux-amd64 -O get-tested
-          chmod +x get-tested
-          ./get-tested --ubuntu --macos get-tested.cabal >> $GITHUB_OUTPUT
+      - name: Generate matrix
+        uses: turion/get-tested@v0.1.5.0
+        with:
+          cabal-file: get-tested.cabal
   tests:
     name: ${{ matrix.ghc }} on ${{ matrix.os }}
     needs: generate-matrix
diff --git a/README.md b/README.md
index 27dc4f6..066b77f 100644
--- a/README.md
+++ b/README.md
@@ -7,26 +7,18 @@ A CLI tool that retrieves the `tested-with` stanza of a cabal file and formats i
 Put this in your GitHub Action file
 
 ```yaml
-jobs:                                                                                                                   
-  generateMatrix:                                                                                                       
-    name: "Generate matrix from cabal"                                                                                  
-    runs-on: ubuntu-latest                                                                                              
-    outputs:                                                                                                            
-      matrix: ${{ steps.set-matrix.outputs.matrix }}                                                                    
-    steps:                                                                                                              
-      - name: Checkout base repo                                                                                        
-        uses: actions/checkout@v2                                                                                       
-      - name: Extract the tested GHC versions                                                                           
-        id: set-matrix                                                                                                  
-        run: |                                                                                                          
-          wget https://github.com/Kleidukos/get-tested/releases/download/v0.1.5.0/get-tested-0.1.5.0-linux-amd64 -O get-tested
-          chmod +x get-tested                                                                                           
-          ./get-tested --ubuntu --macos my-project.cabal >> $GITHUB_OUTPUT                                            
-  tests:                                                                                                                
-    name: ${{ matrix.ghc }} on ${{ matrix.os }}                                                                         
-    needs: generateMatrix                                                                                               
-    runs-on: ${{ matrix.os }}                                                                                           
-    strategy:                                                                                                           
+jobs:
+  generateMatrix:
+    name: "Generate matrix from cabal"
+    runs-on: ubuntu-latest
+    steps:
+      - name: Extract the tested GHC versions
+        uses: turion/get-tested@v0.1.5.0
+  tests:
+    name: ${{ matrix.ghc }} on ${{ matrix.os }}
+    needs: generateMatrix
+    runs-on: ${{ matrix.os }}
+    strategy:
       matrix: ${{ fromJSON(needs.generateMatrix.outputs.matrix) }}
 ```
 
diff --git a/action.yml b/action.yml
new file mode 100644
index 0000000..c6642e3
--- /dev/null
+++ b/action.yml
@@ -0,0 +1,30 @@
+name: "Generate matrix from cabal"
+
+inputs:
+  cabal-file:
+    description: "The path to your cabal file, e.g. somefolder/myproject.cabal"
+    required: true
+
+outputs:
+  matrix:
+    description: "The GHC version matrix"
+    value: ${{ steps.set-matrix.outputs.matrix }}
+
+runs:
+  using: "composite"
+  steps:
+    - name: Checkout base repo
+      uses: actions/checkout@v2
+    - name: Extract the tested GHC versions
+      id: set-matrix
+      shell: bash
+      run: |
+        # Extract e.g. 0.1 from /runner/foo/bar/.../v0.1
+        export version=$(basename $GITHUB_ACTION_PATH | tail -c +2)
+        wget https://github.com/Kleidukos/get-tested/releases/download/v${version}/get-tested-${version}-linux-amd64 -O get-tested
+        chmod +x get-tested
+        ./get-tested --ubuntu --macos ${{ inputs.cabal-file }} >> $GITHUB_OUTPUT
+
+branding:
+  icon: 'list'
+  color: 'blue'