diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 30f343a..e2041f9 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -93,11 +93,14 @@ jobs:
     - name: Build nix packages
       # run: nix shell -f '<nixpkgs>' nix-build-uncached -c nix-build-uncached ci.nix -A cacheOutputs
       run: nix shell -f '.' nix-build-uncached-logging -c nix-build-uncached ci.nix ${{ matrix.qemuSystem && format('--argstr platform {0}', matrix.qemuSystem)}} -A cacheOutputs
-    - name: "DEBUG: Upload drl .drv"
+    - name: Upload debug info
       if: '!cancelled()'
       uses: actions/upload-artifact@v4
       with:
-        path: /nix/store/*drl-unwrapped*.drv
+        name: Rhys-T-nur-packages-debug
+        path: |
+          /nix/store/*drl-unwrapped*.drv
+          /nix/store/*drl-env-test*
         if-no-files-found: ignore
     - name: Trigger NUR update
       # Don't replace <YOUR_REPO_NAME> here!
diff --git a/default.nix b/default.nix
index fa55ff5..e1cd874 100644
--- a/default.nix
+++ b/default.nix
@@ -140,6 +140,21 @@ in {
             '';
             meta = {};
         });
+    }) // pkgs.lib.optionalAttrs (pkgs.hostPlatform.system == "x86_64-darwin") (pkgs.lib.recurseIntoAttrs {
+        env = self.drl-unwrapped.overrideAttrs (old: {
+            pname = "drl-env-test";
+            buildPhase = ''
+                runHook preBuild
+                :
+                runHook postBuild
+            '';
+            installPhase = ''
+                runHook preInstall
+                env > "$out"
+                runHook postInstall
+            '';
+            meta = {};
+        });
     });
     
     # Can't just pass `-L` to `nix-build-uncached`: it ends up being passed to both