diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 042401b..b469245 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -26,12 +26,11 @@ jobs:
       - uses: ./.github/actions/setup-nix
         with:
           cachixToken: ${{ secrets.CACHIX_AUTH_TOKEN }}
-      - uses: actions/cache@v4
-        with:
-          path: |
-            ~/.cargo/registry
-            ~/.cargo/git
-            target
-          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
+      - name: Build Tests
+        run: nix build .#cargo-tests -L -vv
       - name: Cargo Tests
-        run: nix develop --print-build-logs -v --command cargo test
+        run: |
+          nix develop \
+            --print-build-logs \
+            -v \
+            --command result/bin/run-tests
diff --git a/flake.nix b/flake.nix
index d862de3..14f5999 100644
--- a/flake.nix
+++ b/flake.nix
@@ -33,6 +33,7 @@
         ./nix/hooks.nix # pre-commit hooks
         ./nix/utils.nix # utility functions
         ./nix/shells.nix
+        ./nix/tests.nix
         ./wire/cli
         ./wire/key_agent
         ./doc
@@ -52,7 +53,7 @@
               inherit (self.packages.x86_64-linux) docs;
             }
             // lib.genAttrs [ "x86_64-linux" "aarch64-linux" ] (system: {
-              inherit (self.packages.${system}) wire wire-small;
+              inherit (self.packages.${system}) wire wire-small cargo-tests;
             });
 
             tests = lib.filterAttrs (n: _: (lib.hasPrefix "vm" n)) self.checks.x86_64-linux;
diff --git a/nix/tests.nix b/nix/tests.nix
new file mode 100644
index 0000000..86c6d30
--- /dev/null
+++ b/nix/tests.nix
@@ -0,0 +1,38 @@
+{
+  perSystem =
+    {
+      craneLib,
+      pkgs,
+      commonArgs,
+      ...
+    }:
+    let
+      tests = craneLib.buildPackage (
+        {
+          cargoArtifacts = craneLib.buildDepsOnly commonArgs;
+          doCheck = false;
+
+          doNotPostBuildInstallCargoBinaries = true;
+
+          buildPhase = ''
+            cargo test --no-run
+          '';
+
+          installPhaseCommand = ''
+            mkdir -p $out
+            cp $(ls target/debug/deps/{wire,lib,key_agent}-* | grep -v "\.d") $out
+          '';
+        }
+        // commonArgs
+      );
+    in
+    {
+      packages.cargo-tests = pkgs.writeShellScriptBin "run-tests" ''
+        set -e
+        for item in "${tests}"/*; do
+            echo "running $item"
+            "$item"
+        done
+      '';
+    };
+}