added alacritty

configuration.nix

@@ -31,6 +31,11 @@
   # Set your time zone.
   time.timeZone = "Europe/Moscow";
 
+  environment.sessionVariables = rec {
+    # fixing disappering cursor in alacritty - https://github.com/NixOS/nixpkgs/issues/22652
+    XCURSOR_THEME = "Vimix-cursors";
+  };
+
   # Select internationalisation properties.
   i18n.defaultLocale = "ru_RU.UTF-8";
 
@@ -117,6 +122,7 @@
   # List packages installed in system profile. To search, run:
   # $ nix search wget
   environment.systemPackages = with pkgs; [
+    alacritty
     vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
     git
     tmux