refactor: prepare the input (#235)

Author: luisnquin

flake.nix

@@ -1,10 +1,12 @@
 {
-  description = "Zen Browser";
+  description = "Community-driven Nix Flake for the Zen browser";
 
-  inputs.nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
-  inputs.home-manager = {
-    url = "github:nix-community/home-manager";
-    inputs.nixpkgs.follows = "nixpkgs";
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+    home-manager = {
+      url = "github:nix-community/home-manager";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
   };
 
   outputs = {