Upgrade to NixOS 23.05 and SSD boot

configuration.nix

@@ -12,24 +12,20 @@ with pkgs;
     inputs.agenix.packages.aarch64-linux.default
   ];
 
-  # Add a swap file
-  swapDevices = [{
-    device = "/swapfile";
-    size = 4096;
-  }];
-
   # Enable zswap
   zramSwap.enable = true;
 
   # Configure basic SSH access
   services.openssh = {
     enable = true;
-    permitRootLogin = "yes";
-    passwordAuthentication = false;
+    settings = {
+      PermitRootLogin = "yes";
+      PasswordAuthentication = false;
+    };
   };
 
   # Cleanup tmp on startup
-  boot.cleanTmpDir = true;
+  boot.tmp.cleanOnBoot = true;
 
   # Create coolneng user
   users.users.coolneng = {