add 'amnezia' alias to start AmneziaVPN

.gitignore

@@ -1,4 +1,5 @@
 for_config/*
 home-manager/modules/custom/*
 nixos/configuration.nix
-nixos/configuration.nix.bak
+nixos/my.nix
+home-manager/modules/custom/config.nix

home-manager/modules/zsh/zsh.nix

@@ -61,6 +61,11 @@
       home-rr = "home-manager switch";
       cnfg = "sudo nvim /nixos/configuration.nix";
       rr = "sudo nixos-rebuild switch";
+
+      amnezia = ''
+                (pgrep -x "AmneziaVPN-service" > /dev/null 2>&1 || sudo AmneziaVPN-service > /dev/null 2>&1 &) &
+        AmneziaVPN > /dev/null 2>&1 &
+      ''; # i don't know any good ways for it.
     };
 
     initContent = ''

nixos/custom.nix

@@ -10,16 +10,13 @@
   nixpkgs.config.allowUnfree = true;
   environment.systemPackages = with pkgs; [ kitty amnezia-vpn ];
 
-  systemd.services.amnezia-vpn = {
-    description = "AmneziaVPN Service";
-    after = [ "network.target" ];
-    wantedBy = [ "multi-user.target" ];
-
-    serviceConfig = {
-      ExecStart = "${pkgs.amnezia-vpn}/bin/AmneziaVPN-service";
-      Restart = "on-failure";
-    };
-  };
+  security.sudo.extraRules = [{
+    users = [ "ALL" ];
+    commands = [{
+      command = "/run/current-system/sw/bin/AmneziaVPN-service";
+      options = [ "NOPASSWD" ];
+    }];
+  }];
 
   programs.neovim = {
     enable = true;
@@ -55,6 +52,7 @@
 
     consoleLogLevel = 3;
     initrd.verbose = false;
+    kernelModules = [ "tun" ]; # for VPN
     kernelParams = [
       "quiet"
       "splash"