diff --git a/1systems/gum.nix b/1systems/gum.nix
index 8dd347b..44ab8c6 100644
--- a/1systems/gum.nix
+++ b/1systems/gum.nix
@@ -9,6 +9,7 @@ in {
       # TODO: copy this config or move to krebs
       ../2configs/tinc-basic-retiolum.nix
       ../2configs/headless.nix
+      ../2configs/fs/simple-swap.nix
       ../2configs/fs/single-partition-ext4.nix
       # ../2configs/iodined.nix
 
diff --git a/2configs/fs/simple-swap.nix b/2configs/fs/simple-swap.nix
new file mode 100644
index 0000000..8c161b2
--- /dev/null
+++ b/2configs/fs/simple-swap.nix
@@ -0,0 +1,11 @@
+_:
+{
+  # do not swap that often
+  boot.kernel.sysctl = {
+    "vm.swappiness" = 25;
+  };
+
+  swapDevices = [
+    { device = "/dev/disk/by-label/swap"; }
+  ];
+}