add cache config

modules/gitea/thea/default.nix

@@ -1,15 +1,24 @@
-{nodes, inputs, pkgs, ...}:let
+{
+  nodes,
+  inputs,
+  pkgs,
+  ...
+}:
+let
   sin-address = "192.168.1.14";
-  unstable = import inputs.unstable {system = pkgs.system;};
-in{
+  unstable = import inputs.unstable { system = pkgs.system; };
+in
+{
   imports = [
     ./virtualisation.nix
   ];
-  networking.nat.forwardPorts = [{
-    sourcePort = nodes.sin.config.services.gitea.settings.server.SSH_PORT;
-    proto = "tcp";
-    destination = "${sin-address}:22";  
-  }];
+  networking.nat.forwardPorts = [
+    {
+      sourcePort = nodes.sin.config.services.gitea.settings.server.SSH_PORT;
+      proto = "tcp";
+      destination = "${sin-address}:22";
+    }
+  ];
 
   services.gitea-actions-runner.package = unstable.gitea-actions-runner;
 
@@ -21,8 +30,27 @@ in{
       token = "uEDPBW6Z9oItAKRtloVwis0LkPbD4OmV2w5esOhW";
       labels = [
         "ubuntu-22.04:docker://docker.gitea.com/runner-images:ubuntu-22.04"
-      ]
-      ;
+      ];
+      settings = {
+        cache = {
+          # Enable cache server to use actions/cache.
+          enabled = true;
+          # The directory to store the cache data.
+          # If it's empty, the cache data will be stored in $HOME/.cache/actcache.
+          dir = "";
+          # The host of the cache server.
+          # It's not for the address to listen, but the address to connect from job containers.
+          # So 0.0.0.0 is a bad choice, leave it empty to detect automatically.
+          host = "";
+          # The port of the cache server.
+          # 0 means to use a random available port.
+          port = 0;
+          # The external cache server URL. Valid only when enable is true.
+          # If it's specified, act_runner will use this URL as the ACTIONS_CACHE_URL rather than start a server by itself.
+          # The URL should generally end with "/".
+          external_server = "";
+        };
+      };
     };
   };
 }