diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 276790f..5c7ec17 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,15 +6,17 @@ on:
   pull_request:
     branches: [main]
 
-env:
-  MIX_ENV: test
-  OTP_VERSION_SPEC: "26.x"
-  ELIXIR_VERSION_SPEC: "1.16.x"
-
 jobs:
   compile:
     name: Compile
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        include:
+          - elixir: "1.16.x"
+            otp: "26.x"
+          - elixir: 1.15.x
+            otp: "25.x"
 
     steps:
       - name: Checkout
@@ -22,8 +24,8 @@ jobs:
       - name: Set up Elixir
         uses: erlef/setup-beam@v1
         with:
-          otp-version: ${{ env.OTP_VERSION_SPEC }}
-          elixir-version: ${{ env.ELIXIR_VERSION_SPEC }}
+          elixir-version: ${{ matrix.elixir }}
+          otp-version: ${{ matrix.otp }}
       - name: Install dependencies
         run: mix deps.get
       - name: Compile dependencies
@@ -34,6 +36,13 @@ jobs:
   test:
     name: Test
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        include:
+          - elixir: "1.16.x"
+            otp: "26.x"
+          - elixir: 1.15.x
+            otp: "25.x"
 
     steps:
       - name: Checkout
@@ -41,8 +50,8 @@ jobs:
       - name: Set up Elixir
         uses: erlef/setup-beam@v1
         with:
-          otp-version: ${{ env.OTP_VERSION_SPEC }}
-          elixir-version: ${{ env.ELIXIR_VERSION_SPEC }}
+          elixir-version: ${{ matrix.elixir }}
+          otp-version: ${{ matrix.otp }}
       - name: Install dependencies
         run: mix deps.get
       - name: Compile dependencies
@@ -53,6 +62,11 @@ jobs:
   check-formatted:
     name: Check Formatted
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        include:
+          - elixir: "1.16.x"
+            otp: "26.x"
 
     steps:
       - name: Checkout
@@ -60,67 +74,11 @@ jobs:
       - name: Set up Elixir
         uses: erlef/setup-beam@v1
         with:
-          otp-version: ${{ env.OTP_VERSION_SPEC }}
-          elixir-version: ${{ env.ELIXIR_VERSION_SPEC }}
+          elixir-version: ${{ matrix.elixir }}
+          otp-version: ${{ matrix.otp }}
       - name: Install dependencies
         run: mix deps.get
       - name: Compile dependencies
         run: mix deps.compile
       - name: Check formatted
         run: mix format --check-formatted
-
-  # credo:
-  #   name: Credo
-  #   runs-on: ubuntu-latest
-
-  #   steps:
-  #     - name: Checkout
-  #       uses: actions/checkout@v4
-  #     - name: Set up Elixir
-  #       uses: erlef/setup-beam@v1
-  #       with:
-  #         otp-version: ${{ env.OTP_VERSION_SPEC }}
-  #         elixir-version: ${{ env.ELIXIR_VERSION_SPEC }}
-  #     - name: Install dependencies
-  #       run: mix deps.get
-  #     - name: Compile dependencies
-  #       run: mix deps.compile
-  #     - name: Run credo
-  #       run: mix credo --strict
-
-  # dialyzer:
-  #   name: Dialyzer
-  #   runs-on: ubuntu-latest
-
-  #   env:
-  #     MIX_ENV: dev
-
-  #   steps:
-  #     - name: Checkout
-  #       uses: actions/checkout@v4
-  #     - name: Set mix file hash
-  #       id: set_vars
-  #       run: |
-  #         mix_hash="${{ hashFiles(format('{0}{1}', github.workspace, '/mix.lock')) }}"
-  #         echo "::set-output name=mix_hash::$mix_hash"
-  #     - name: Cache PLT files
-  #       id: cache-plt
-  #       uses: actions/cache@v4
-  #       with:
-  #         path: |
-  #           _build/dev/*.plt
-  #           _build/dev/*.plt.hash
-  #         key: plt-cache-${{ steps.set_vars.outputs.mix_hash }}
-  #         restore-keys: |
-  #           plt-cache-
-  #     - name: Set up Elixir
-  #       uses: erlef/setup-beam@v1
-  #       with:
-  #         otp-version: ${{ env.OTP_VERSION_SPEC }}
-  #         elixir-version: ${{ env.ELIXIR_VERSION_SPEC }}
-  #     - name: Install dependencies
-  #       run: mix deps.get
-  #     - name: Compile dependencies
-  #       run: mix deps.compile
-  #     - name: Run dialyzer
-  #       run: mix dialyzer