Sliding sync and metrics

modules/synapse/default.nix

@@ -6,6 +6,9 @@
 }: let
   fqdn = "matrix.broccoli.town";
 in {
+  age.secrets = {
+    sliding_sync_env_file.file = ../../secrets/sliding_sync_env_file.age;
+  };
   services.postgresql = {
     enable = true;
     ensureUsers = [
@@ -26,6 +29,13 @@ in {
 
   services.matrix-synapse = {
     enable = true;
+	sliding-sync = {
+	  enable = true;
+	  environmentFile = config.age.secrets.sliding_sync_env_file.path;
+	  settings = {
+		SYNCV3_SERVER = "http://localhost:8008";
+	  };
+	};
     settings = {
       enable_metrics = true;
       server_name = "broccoli.town";