feat(nixos): run Valheim in a guest

configs/nixos/modules/default.nix

@@ -42,6 +42,10 @@ in
 
     users.groups.storage.gid = 10000;
 
+    security.sudo.extraConfig = ''
+      Defaults env_keep += "EDITOR VISUAL"
+    '';
+
     time.timeZone = "America/New_York";
     i18n.defaultLocale = "en_GB.UTF-8";
 
@@ -87,6 +91,10 @@ in
 
       update = "sudo nixos-rebuild switch --flake .#${config.networking.hostName}";
       cleanup = "sudo nix-collect-garbage -d";
+      sops-host = {
+        command = "sudo --preserve-env=EDITOR,VISUAL env SOPS_AGE_KEY_FILE=/var/lib/sops-nix/key.txt nix shell nixpkgs#sops nixpkgs#neovim -c sops";
+        abbreviation = false;
+      };
     };
 
     modules.shell.fish.enable = lib.mkDefault true;