diff --git a/.github/workflows/build-release.yml b/.github/workflows/build-release.yml
index acc2ce4..582980b 100644
--- a/.github/workflows/build-release.yml
+++ b/.github/workflows/build-release.yml
@@ -366,12 +366,13 @@ jobs:
               if: matrix.label == 'macos'
               env:
                   PY_X64: ${{ steps.python_x64.outputs.python-path }}
+                  ARCHFLAGS: "-arch x86_64"
               run: |
                   set -euo pipefail
-                  "$PY_X64" -m pip install -U pip setuptools wheel
-                  "$PY_X64" -m pip install "cx-freeze>=7.0.0"
-                  "$PY_X64" -m pip install -e .
-                  "$PY_X64" scripts/patch_lxst_pyogg_ogg_ctypes.py
+                  arch -x86_64 "$PY_X64" -m pip install -U pip setuptools wheel
+                  arch -x86_64 "$PY_X64" -m pip install "cx-freeze>=7.0.0"
+                  arch -x86_64 "$PY_X64" -m pip install -e .
+                  arch -x86_64 "$PY_X64" scripts/patch_lxst_pyogg_ogg_ctypes.py
 
             - name: Download frontend artifact
               uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0
diff --git a/scripts/build-backend.js b/scripts/build-backend.js
index 451d811..53ec007 100755
--- a/scripts/build-backend.js
+++ b/scripts/build-backend.js
@@ -233,7 +233,7 @@ try {
 
     let spawnCmd = cmd;
     let spawnArgs = licensesArgs;
-    const rosettaX64 = isDarwin && arch === "x64" && process.arch === "arm64" && !process.env.PYTHON_CMD;
+    const rosettaX64 = isDarwin && arch === "x64" && process.arch === "arm64";
     if (rosettaX64) {
         spawnCmd = "arch";
         spawnArgs = ["-x86_64", cmd, ...licensesArgs];