More Jupiter adjustments

hosts/jupiter/jovian/default.nix

@@ -1,17 +1,28 @@
-{ config, jovian, ... }:
+{ config, lib, jovian, ... }:
 {
   imports = [ jovian.nixosModules.jovian ];
 
   jovian = {
     steam = {
       enable = true;
+      autoStart = true;
+      desktopSession = "sway";
       user = config.sysusers.main;
     };
     devices.steamdeck.enable = true;
-    hardware.has.amd.gpu = true;
     decky-loader.enable = true;
   };
 
+  services = {
+    displayManager.ly.enable = lib.mkForce false;
+    keyd.enable = lib.mkForce false;
+  };
+
+  environment.persistence."/persist" = {
+    directories = [ "/etc/NetworkManager/system-connections" ];
+    users.${config.sysusers.main}.directories = [ ".steam" ];
+  };
+
   nixpkgs.allowUnfreePackages = [
     "steam"
     "steam-jupiter-unwrapped"