diff --git a/flake.nix b/flake.nix
index 00b29c0..719ccd1 100644
--- a/flake.nix
+++ b/flake.nix
@@ -49,6 +49,7 @@
           version = "0.0.1";
           releases = with pkgs.lib; attrsets.collect isDerivation releases;
           src = ./.;
+          buildInputs = [ pkgs.kustomize ];
           phases = ["installPhase"];
           installPhase = builtins.readFile ./lib/output.sh;
         };
diff --git a/lib/output.sh b/lib/output.sh
index a97fdb7..7647567 100644
--- a/lib/output.sh
+++ b/lib/output.sh
@@ -18,15 +18,23 @@ do
     target=$(tr / - <<< "$path")
 
     for drv in $releases; do
-      if grep -Eq "$target" <<< "$drv"; then
-        ln -s "$drv" "$dir"
+      if grep -qE "$target" <<< "$drv"; then
+        pushd "$dir" > /dev/null || exit 1
+        cp "$drv" ./RELEASE.yaml
 
         for file in \
           $(find "$src/releases/$path" -type f -name "*.yaml" \
           | grep -v "values.yaml$")
         do
-          ln -s "$file" "$dir"
+          cp "$file" .
         done
+
+        kustomize create
+        # shellcheck disable=SC2035
+        # Can't use "./", otherwise the kustomization is added to itself.
+        kustomize edit add resource *.yaml
+
+        popd > /dev/null || exit 1
       fi
     done
   fi