diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index cbe7d38..0d16534 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -15,6 +15,7 @@ jobs:
     strategy:
       matrix:
         systems:
+          # we also use this for x86_64-darwin
           - nix-system: aarch64-darwin
             runner: macos-15
             system: ARM64-macOS
diff --git a/.github/workflows/release-branches.yaml b/.github/workflows/release-branches.yaml
index c630735..9a9992c 100644
--- a/.github/workflows/release-branches.yaml
+++ b/.github/workflows/release-branches.yaml
@@ -26,6 +26,14 @@ jobs:
       - name: Create the artifacts directory
         run: rm -rf ./artifacts && mkdir ./artifacts
 
+      # x86_64-darwin (uses the aarch64-darwin build)
+      - uses: actions/download-artifact@v4.1.7
+        with:
+          name: flake-checker-ARM64-macOS
+          path: cache-binary-X64-macOS
+      - name: Persist the cache binary
+        run: cp ./cache-binary-X64-macOS/flake-checker ./artifacts/X64-macOS
+
       - uses: actions/download-artifact@v4.1.7
         with:
           name: flake-checker-ARM64-macOS
diff --git a/.github/workflows/release-prs.yaml b/.github/workflows/release-prs.yaml
index 998e918..de4ea14 100644
--- a/.github/workflows/release-prs.yaml
+++ b/.github/workflows/release-prs.yaml
@@ -35,6 +35,14 @@ jobs:
       - name: Create the artifacts directory
         run: rm -rf ./artifacts && mkdir ./artifacts
 
+      # x86_64-darwin (uses the aarch64-darwin build)
+      - uses: actions/download-artifact@v4.1.7
+        with:
+          name: flake-checker-ARM64-macOS
+          path: cache-binary-X64-macOS
+      - name: Persist the cache binary
+        run: cp ./cache-binary-X64-macOS/flake-checker ./artifacts/X64-macOS
+
       - uses: actions/download-artifact@v4.1.7
         with:
           name: flake-checker-ARM64-macOS
diff --git a/.github/workflows/release-tags.yaml b/.github/workflows/release-tags.yaml
index 7e75346..c7405ee 100644
--- a/.github/workflows/release-tags.yaml
+++ b/.github/workflows/release-tags.yaml
@@ -24,6 +24,14 @@ jobs:
       - name: Create the artifacts directory
         run: rm -rf ./artifacts && mkdir ./artifacts
 
+      # x86_64-darwin (uses the aarch64-darwin build)
+      - uses: actions/download-artifact@v4.1.7
+        with:
+          name: flake-checker-ARM64-macOS
+          path: cache-binary-X64-macOS
+      - name: Persist the cache binary
+        run: cp ./cache-binary-X64-macOS/flake-checker ./artifacts/X64-macOS
+
       - uses: actions/download-artifact@v4.1.7
         with:
           name: flake-checker-ARM64-macOS
@@ -55,6 +63,7 @@ jobs:
 
       - name: Rename binaries for GH release
         run: |
+          mv ./artifacts/{,flake-checker-}X64-macOS
           mv ./artifacts/{,flake-checker-}ARM64-macOS
           mv ./artifacts/{,flake-checker-}X64-Linux
           mv ./artifacts/{,flake-checker-}ARM64-Linux