added neovim

shared/neovim.nix

@@ -0,0 +1,20 @@
+{ config, pkgs, ... }:
+
+let
+  # Replace with the URL of your Neovim configuration GitHub repository
+  neovimConfig = builtins.fetchGit {
+    url = "https://github.com/fwastring/nvim.git";
+    # Optional: specify a specific branch, tag, or commit hash
+    ref = "main";
+  };
+
+in
+{
+  # Enable the Home Manager Neovim module if you haven't already
+  # programs.neovim.enable = true;
+
+  # Create a symlink from the Nix store to the Neovim config directory
+  xdg.configFile."nvim".source = neovimConfig;
+
+  # Other Home Manager options...
+}