diff --git a/dev/effect.nix b/dev/effect.nix
index 0efcf90..e362787 100644
--- a/dev/effect.nix
+++ b/dev/effect.nix
@@ -4,11 +4,17 @@
     withSystem "x86_64-linux" ({ hci-effects, pkgs, self', ... }:
       let
         inherit (config.repo) ref;
-        inherit (hci-effects) mkEffect runIf;
+        inherit (hci-effects) mkEffect runCachixDeploy runIf;
         inherit (pkgs.lib) hasPrefix;
       in
       {
         onPush.default.outputs.effects = {
+          cachix-deploy = runIf (hasPrefix "refs/heads/gh-readonly-queue/master/" ref)
+            (runCachixDeploy {
+              deploy.agents = {
+                build01 = builtins.unsafeDiscardStringContext self.nixosConfigurations.build01.config.system.build.toplevel;
+              };
+            });
           terraform-deploy = runIf (hasPrefix "refs/heads/gh-readonly-queue/master/" ref)
             (mkEffect {
               name = "terraform-deploy";
diff --git a/hosts/build01/configuration.nix b/hosts/build01/configuration.nix
index bb4b5ca..e16aa70 100644
--- a/hosts/build01/configuration.nix
+++ b/hosts/build01/configuration.nix
@@ -17,6 +17,7 @@
     inputs.self.nixosModules.zfs
     inputs.self.nixosModules.community-builder
     inputs.self.nixosModules.remote-builder-aarch64-nixos-community
+    inputs.self.nixosModules.cachix-deploy
   ];
 
   # Emulate riscv64 until we have proper builders