diff --git a/LICENSE b/LICENSE
index 2ac870d..29780fe 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2024-2025 Eric Rodrigues Pires
+Copyright (c) 2024-2026 Eric Rodrigues Pires
 
 Permission is hereby granted, free of charge, to any
 person obtaining a copy of this software and associated
diff --git a/book/src/nixos.md b/book/src/nixos.md
index e838514..b9fb2d1 100644
--- a/book/src/nixos.md
+++ b/book/src/nixos.md
@@ -13,7 +13,10 @@ If you're using Nix Flakes for your system, you can install the NixOS service li
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
     # ...
-    sandhole.url = "github:EpicEric/sandhole";
+    sandhole = {
+      url = "github:EpicEric/sandhole";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
   };
 
   outputs =
@@ -170,10 +173,10 @@ You can then connect services with the provided keys. For example, to use a Vaul
         useHostResolvConf = lib.mkForce false;
       };
 
-        services.resolved.enable = true;
+      services.resolved.enable = true;
 
-        system.stateVersion = "25.11";
-      };
+      system.stateVersion = "25.11";
+    };
   };
 
   # Proxy Vaultwarden to the local Sandhole instance
diff --git a/flake.nix b/flake.nix
index d3ac99a..6402441 100644
--- a/flake.nix
+++ b/flake.nix
@@ -106,7 +106,7 @@
         };
 
         optionsDoc = pkgs.nixosOptionsDoc {
-          options = builtins.removeAttrs evalOptions.options [ "_module" ];
+          options = removeAttrs evalOptions.options [ "_module" ];
         };
       in
       {