goyplex-vm: add fen user (key + NOPASSWD sudo), fix rebuild.sh host, retire hermes input

modules/core/default.nix

@@ -9,7 +9,7 @@
     ./timezone.nix
     ./nix.nix
     ./program.nix
-    ./user.nix
+    ./users.nix
     ./ssh.nix
   ];
 }

modules/core/nix.nix

@@ -1,5 +1,5 @@
 {
-  nix.settings = {
-    experimental-features = "nix-command flakes";
-  };
+  # nix.settings = {
+  #   experimental-features = "nix-command flakes";
+  # };
 }

modules/core/user.nix

@@ -1,14 +0,0 @@
-{ username, pkgs, ... }:
-
-{
-  users.users.${username} = {
-    isNormalUser = true;
-    description = "${username}";
-    extraGroups = [
-      "wheel"
-      "docker"
-    ];
-    shell = pkgs.zsh;
-  };
-  nix.settings.allowed-users = [ "@wheel" ];
-}

modules/core/users.nix

@@ -0,0 +1,35 @@
+{ username, pkgs, ... }:
+
+{
+  users.users.${username} = {
+    isNormalUser = true;
+    description = "${username}";
+    extraGroups = [
+      "wheel"
+      "docker"
+    ];
+    shell = pkgs.zsh;
+  };
+
+  users.users.fen = {
+    isNormalUser = true;
+    extraGroups = [ "wheel" ];
+    openssh.authorizedKeys.keys = [
+      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJ8nZT7pA+Wp7mnjKSJPpmYs+tFx5q+gtvOcSSMJt93D fen"
+    ];
+  };
+
+  nix.settings.allowed-users = [ "@wheel" ];
+
+  security.sudo.extraRules = [
+    {
+      users = [ "fen" ];
+      commands = [
+        {
+          command = "ALL";
+          options = [ "NOPASSWD" ];
+        }
+      ];
+    }
+  ];
+}