From 0f747fca033ac081722db9191402814a382f9ed4 Mon Sep 17 00:00:00 2001
From: Sam Estep <sam@samestep.com>
Date: Thu, 25 Sep 2025 11:46:57 -0400
Subject: [PATCH] docs(README): deduplicate Nixpkgs in dev shell

---
 README.md | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 175e069b..dd3a0c9a 100644
--- a/README.md
+++ b/README.md
@@ -115,11 +115,14 @@ Running `nix develop` will create a shell with the default beta Rust toolchain i
 
   inputs = {
     nixpkgs.url      = "github:NixOS/nixpkgs/nixos-unstable";
-    rust-overlay.url = "github:oxalica/rust-overlay";
     flake-utils.url  = "github:numtide/flake-utils";
+    rust-overlay = {
+      url = "github:oxalica/rust-overlay";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
   };
 
-  outputs = { self, nixpkgs, rust-overlay, flake-utils, ... }:
+  outputs = { self, nixpkgs, flake-utils, rust-overlay, ... }:
     flake-utils.lib.eachDefaultSystem (system:
       let
         overlays = [ (import rust-overlay) ];