how to allow unfree? I want a working prototype on neovim config ASAP

home-nix/flake.nix

@@ -100,7 +100,10 @@
               myHome = {
                 username = "hwtr";
                 homeDirectory = "/home/hwtr";
-                packages = [ pkgs.nixgl.nixGLIntel pkgs.postman ];
+                packages = [ 
+                  pkgs.nixgl.nixGLIntel 
+                  # pkgs.postman 
+                ];
                 shellAliases = {
                   nixGL = "nixGLIntel";
                 };

home-nix/home.nix

@@ -18,8 +18,13 @@
     pkgs.zk
     pkgs.unzip
     pkgs.rust-bin.nightly.latest.default
+
     # pkgs.nodejs-18_x
     # pkgs.rust-analyzer
+
+    # Yes, I desperately want neovim to work out-of-the-box without flake.nix for now
+    pkgs.tree-sitter
+    pkgs.nodejs
     pkgs.yq
     pkgs.python39Full
     pkgs.xorg.xclock # TODO: only include if have GL
@@ -33,7 +38,6 @@
     # pkgs.python310Packages.tensorflow
     # pkgs.python310Packages.scikit-learn
   ] ++ (myHome.packages or [ ]);
-  nixpkgs.config.allowUnfree = true;
 
   ## Configs ## 
   xdg.configFile."nvim/init.lua".text = builtins.readFile ../neovim/init.lua;
@@ -121,8 +125,8 @@
     };
     # No idea why this is not appearing in home-manager search
     # It's in source code, though
-    userName="pegasust";
-    userEmail="pegasucksgg@gmail.com";
+    userName = "pegasust";
+    userEmail = "pegasucksgg@gmail.com";
     extraConfig = {
       merge = { tool = "vimdiff"; conflictstyle = "diff3"; };
     };

neovim/init.lua

@@ -146,6 +146,8 @@ colorscheme gruvbox
 require('hlargs').setup()
 require('nvim-web-devicons').setup()
 require('trouble').setup()
+
+-- TODO: Any way to collect all the TODOs and its variants?
 require('todo-comments').setup()
 
 -- plugin keymaps