diff --git a/jobsets.nix b/jobsets.nix
index 36b5e67..0017994 100644
--- a/jobsets.nix
+++ b/jobsets.nix
@@ -76,6 +76,13 @@ let
         nixpkgs-gnunet = "https://ulrich.earth/code/nixpkgs-gnunet/ master 1";
       };
     };
+
+    ticker = mkJobset {
+      description = "Calendar aggregation";
+      nixexprath = "ticker.nix";
+      gitUrls = {
+        ticker = "https://gitea.c3d2.de/astro/ticker.git master 1";
+      };
   };
 
   jobsetsJson = pkgs.writeText "jobsets.json" (builtins.toJSON jobsets );
diff --git a/ticker.nix b/ticker.nix
new file mode 100644
index 0000000..2890c88
--- /dev/null
+++ b/ticker.nix
@@ -0,0 +1,12 @@
+{ pkgs ? import <nixpkgs> {},
+}:
+
+with pkgs;
+let
+  ticker = import <ticker> {
+    inherit pkgs;
+  };
+in
+{
+  ticker = lib.hydraJob ticker;
+}