diff --git a/.github/workflows/python.yml b/.github/workflows/python.yml
index a52361cc..09d153e4 100644
--- a/.github/workflows/python.yml
+++ b/.github/workflows/python.yml
@@ -23,35 +23,26 @@ permissions:
 
 jobs:
   linux:
-    runs-on: ${{ matrix.platform.runner }}
+    runs-on: ${{ matrix.runner }}
     strategy:
+      fail-fast: false
       matrix:
-        platform:
-          - runner: ubuntu-latest
-            target: x86_64
-          - runner: ubuntu-latest
-            target: x86
-          - runner: ubuntu-latest
-            target: aarch64
-          - runner: ubuntu-latest
-            target: armv7
-          - runner: ubuntu-latest
-            target: s390x
-          - runner: ubuntu-latest
-            target: ppc64le
+        runner: [ubuntu-latest]
+        target: [x86_64, x86, aarch64, armv7, s390x, ppc64le]
+        python-version: ["3.12"]
     steps:
       - uses: actions/checkout@v4
         with:
           submodules: true
       - uses: actions/setup-python@v5
         with:
-          python-version: 3.x
+          python-version: ${{ matrix.python-version }}
 
       - name: Build wheels
         uses: PyO3/maturin-action@v1
-        if: ${{ startsWith(matrix.platform.target, 'x86') }}
+        if: ${{ startsWith(matrix.target, 'x86') }}
         with:
-          target: ${{ matrix.platform.target }}
+          target: ${{ matrix.target }}
           args: --release --out dist --find-interpreter --manifest-path ./python-sdk/Cargo.toml
           sccache: 'true'
           manylinux: auto
@@ -59,9 +50,9 @@ jobs:
             yum install -y perl-IPC-Cmd devtoolset-10-libatomic-devel
       - name: Build wheels
         uses: PyO3/maturin-action@v1
-        if: ${{ !startsWith(matrix.platform.target, 'x86') }}
+        if: ${{ !startsWith(matrix.target, 'x86') }}
         with:
-          target: ${{ matrix.platform.target }}
+          target: ${{ matrix.target }}
           args: --release --out dist --find-interpreter --manifest-path ./python-sdk/Cargo.toml
           sccache: 'true'
           manylinux: auto
@@ -72,11 +63,11 @@ jobs:
       - name: Upload wheels
         uses: actions/upload-artifact@v4
         with:
-          name: wheels-linux-${{ matrix.platform.target }}
+          name: wheels-linux-${{ matrix.runner }}-${{ matrix.target }}-${{ matrix.python-version }}
           path: dist
 
       - name: pytest
-        if: ${{ startsWith(matrix.platform.target, 'x86_64') }}
+        if: ${{ startsWith(matrix.target, 'x86_64') }}
         shell: bash
         run: |
           set -ex
@@ -87,10 +78,10 @@ jobs:
           npm ci
           npm run with-server test:python
       - name: pytest
-        if: ${{ !startsWith(matrix.platform.target, 'x86') && matrix.platform.target != 'ppc64' }}
+        if: ${{ !startsWith(matrix.target, 'x86') && matrix.target != 'ppc64' }}
         uses: uraimo/run-on-arch-action@v2
         with:
-          arch: ${{ matrix.platform.target }}
+          arch: ${{ matrix.target }}
           distro: ubuntu22.04
           githubToken: ${{ github.token }}
           install: |
@@ -104,39 +95,34 @@ jobs:
             npm run with-server test:python
 
   musllinux:
-    runs-on: ${{ matrix.platform.runner }}
+    runs-on: ${{ matrix.runner }}
     strategy:
+      fail-fast: false
       matrix:
-        platform:
-          - runner: ubuntu-latest
-            target: x86_64
-          - runner: ubuntu-latest
-            target: x86
-          - runner: ubuntu-latest
-            target: aarch64
-          - runner: ubuntu-latest
-            target: armv7
+        runner: [ubuntu-latest]
+        target: [x86_64, x86, aarch64, armv7]
+        python-version: ["3.12"]
     steps:
       - uses: actions/checkout@v4
         with:
           submodules: true
       - uses: actions/setup-python@v5
         with:
-          python-version: 3.x
+          python-version: ${{ matrix.python-version }}
       - name: Build wheels
         uses: PyO3/maturin-action@v1
         with:
-          target: ${{ matrix.platform.target }}
+          target: ${{ matrix.target }}
           args: --release --out dist --find-interpreter --manifest-path ./python-sdk/Cargo.toml
           sccache: 'true'
           manylinux: musllinux_1_2
       - name: Upload wheels
         uses: actions/upload-artifact@v4
         with:
-          name: wheels-musllinux-${{ matrix.platform.target }}
+          name: wheels-musllinux-${{ matrix.runner }}-${{ matrix.target }}-${{ matrix.python-version }}
           path: dist
       - name: pytest
-        if: ${{ startsWith(matrix.platform.target, 'x86_64') }}
+        if: ${{ startsWith(matrix.target, 'x86_64') }}
         uses: addnab/docker-run-action@v3
         with:
           image: alpine:latest
@@ -154,10 +140,10 @@ jobs:
         # `npm ci` just hangs on Alpine armv7 now.
         # Disabling tests until this issue is fixed:
         # https://github.com/nodejs/docker-node/issues/1829
-        if: ${{ !startsWith(matrix.platform.target, 'x86') && matrix.platform.target != 'armv7' }}
+        if: ${{ !startsWith(matrix.target, 'x86') && matrix.target != 'armv7' }}
         uses: uraimo/run-on-arch-action@v2
         with:
-          arch: ${{ matrix.platform.target }}
+          arch: ${{ matrix.target }}
           distro: alpine_latest
           githubToken: ${{ github.token }}
           install: |
@@ -172,35 +158,34 @@ jobs:
             npm run with-server test:python
 
   windows:
-    runs-on: ${{ matrix.platform.runner }}
+    runs-on: ${{ matrix.runner }}
     strategy:
+      fail-fast: false
       matrix:
-        platform:
-          - runner: windows-latest
-            target: x64
-          - runner: windows-latest
-            target: x86
+        runner: [windows-latest]
+        target: [x64, x86]
+        python-version: ["3.12"]
     steps:
       - uses: actions/checkout@v4
         with:
           submodules: true
       - uses: actions/setup-python@v5
         with:
-          python-version: 3.x
-          architecture: ${{ matrix.platform.target }}
+          python-version: ${{ matrix.python-version }}
+          architecture: ${{ matrix.target }}
       - name: Build wheels
         uses: PyO3/maturin-action@v1
         with:
-          target: ${{ matrix.platform.target }}
+          target: ${{ matrix.target }}
           args: --release --out dist --find-interpreter --manifest-path ./python-sdk/Cargo.toml
           sccache: 'true'
       - name: Upload wheels
         uses: actions/upload-artifact@v4
         with:
-          name: wheels-windows-${{ matrix.platform.target }}
+          name: wheels-windows-${{ matrix.runner }}-${{ matrix.target }}-${{ matrix.python-version }}
           path: dist
       - name: pytest
-        if: ${{ !startsWith(matrix.platform.target, 'aarch64') }}
+        if: ${{ !startsWith(matrix.target, 'aarch64') }}
         shell: bash
         run: |
           set -ex
@@ -212,39 +197,43 @@ jobs:
           npm run with-server test:python
 
   macos:
-    runs-on: ${{ matrix.platform.runner }}
+    runs-on: ${{ matrix.runner }}
     strategy:
+      fail-fast: false
       matrix:
-        platform:
-          - runner: macos-12
-            target: x86_64
-          # - runner: macos-14
-          #   target: aarch64
+        runner: [macos-latest]
+        target: [aarch64] # x86_64
+        python-version: ["3.12"]
     steps:
       - uses: actions/checkout@v4
         with:
           submodules: true
       - uses: actions/setup-python@v5
         with:
-          python-version: 3.x
+          python-version: ${{ matrix.python-version }}
       - name: Build wheels
         uses: PyO3/maturin-action@v1
         with:
-          target: ${{ matrix.platform.target }}
+          target: ${{ matrix.target }}
           args: --release --out dist --find-interpreter --manifest-path ./python-sdk/Cargo.toml
           sccache: 'true'
-      - name: List dist directory
-        run: ls -l dist
+      - name: Debug dist contents
+        run: |
+          echo "Contents of dist directory:"
+          ls -la dist/
+          echo "File details:"
+          file dist/*
       - name: Upload wheels
         uses: actions/upload-artifact@v4
         with:
-          name: wheels-macos-${{ matrix.platform.target }}
+          name: wheels-macos-${{ matrix.runner }}-${{ matrix.target }}-${{ matrix.python-version }}
           path: dist
       - name: pytest
         run: |
           set -ex
           python3 -m venv .venv
           source .venv/bin/activate
+          python --version
           pip install --upgrade pip
           pip install eppo-server-sdk --no-index --find-links dist --force-reinstall -v
           pip install pytest cachetools