diff --git a/morph/grid/testing/grid.nix b/morph/grid/testing/grid.nix
index 16673c6247b95ab1d7fb54d77ff4f4e70e67ed2f..4f6e3694d680d7e5163886452a14a43e295acc3f 100644
--- a/morph/grid/testing/grid.nix
+++ b/morph/grid/testing/grid.nix
@@ -6,12 +6,7 @@ import ../../lib/make-grid.nix {
   config = ./config.json;
   nodes = cfg:
   let
-    importDef = default: path: (
-      if builtins.pathExists path
-      then import path
-      else default
-    );
-    sshUsers = importDef {} ./secrets/staging-users.nix;
+    sshUsers = import ./users.nix;
   in {
     "payments" = import ../../lib/make-issuer.nix ({
       publicIPv4 = "18.197.42.120";
diff --git a/morph/grid/testing/users.nix b/morph/grid/testing/users.nix
new file mode 100644
index 0000000000000000000000000000000000000000..d3520076636b56c0b07055a135becaf6a77b798f
--- /dev/null
+++ b/morph/grid/testing/users.nix
@@ -0,0 +1,2 @@
+let key = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGN4VQm3BIQKEFTw6aPrEwNuShf640N+Py2LOKznFCRT exarkun@bottom";
+in { "root" = key; jcalderone = key; }