Large change on folder structure AND used of import-tree.

modules/system/options/apps/zsh.nix

@@ -0,0 +1,25 @@
+{ lib, config, ... }:
+with lib;
+let
+  cfg = config.os.shell.zsh;
+in
+{
+  options.os.shell.zsh = {
+    enable = mkEnableOption "System zsh service";
+  };
+  config = mkIf cfg.enable {
+
+    programs.zsh = {
+      enable = true;
+      enableCompletion = true;
+      autosuggestions.enable = true;
+      syntaxHighlighting.enable = true;
+    };
+
+    programs.neovim = {
+      enable = true;
+      defaultEditor = true;
+    };
+
+  };
+}