build please?

system/services/ollama/default.nix

@@ -0,0 +1,16 @@
+{ config, lib, ... }: {
+
+    options = {
+        sysconfig.opts.ollama.enable = lib.options.mkOption {
+            type = lib.types.bool;
+            default = false;
+        };
+    };
+
+    config = lib.mkIf config.sysconfig.opts.ollama.enable {
+        services.ollama = {
+            enable = true;
+            acceleration = "cuda";
+        };
+    };
+}