Add a couple of timetrackers for evaluation
diff --git a/src/system.nix b/src/system.nix
index a93c78c..8d0c8a8 100644
--- a/src/system.nix
+++ b/src/system.nix
@@ -64,6 +64,11 @@
   services.zeronet.enable = true;
   services.zeronet.package = pkgs.zeronet-conservancy;
 
+  services.arbtt = {
+    enable = true;
+    sampleRate = 30;
+  };
+
   services = {
     syncthing = {
         enable = true;