Enable suspend-then-hybernate

desktop.nix

@@ -1,6 +1,12 @@
 { pkgs, lib, ... }:
 
 {
+  boot.kernelParams = [ "mem_sleep_default=deep" ];
+  systemd.sleep.extraConfig = ''
+    HybernateDelaySec=30m
+    SuspendState=mem
+  '';
+
   # Configure network proxy if necessary
   # networking.proxy.default = "http://user:password@proxy:port/";
   # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";

graystripe/default.nix

@@ -10,7 +10,7 @@
       # Include the results of the hardware scan.
       ./btrbk.nix
       ./hardware-configuration.nix
-      ./egpu.nix
+      # ./egpu.nix
       ./wireguard.nix
     ];