From 8105beb9a31a5e38f4f17219ffeb1114fdb3ffaa Mon Sep 17 00:00:00 2001
From: Sridhar Ratnakumar <srid@srid.ca>
Date: Thu, 2 Mar 2023 09:21:25 -0500
Subject: [PATCH] Eliminate unnecessary 2nd nixpkgs in lock file

---
 flake.lock | 20 +++-----------------
 flake.nix  |  1 +
 2 files changed, 4 insertions(+), 17 deletions(-)

diff --git a/flake.lock b/flake.lock
index ecb23ba..905bb0b 100644
--- a/flake.lock
+++ b/flake.lock
@@ -112,22 +112,6 @@
         "type": "github"
       }
     },
-    "nixpkgs_2": {
-      "locked": {
-        "lastModified": 1675545634,
-        "narHash": "sha256-TbQeQcM5TA/wIho6xtzG+inUfiGzUXi8ewwttiQWYJE=",
-        "owner": "nixos",
-        "repo": "nixpkgs",
-        "rev": "0591d6b57bfeb55dfeec99a671843337bc2c3323",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nixos",
-        "ref": "nixos-unstable",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
     "root": {
       "inputs": {
         "flake-parts": "flake-parts",
@@ -141,7 +125,9 @@
     },
     "treefmt-nix": {
       "inputs": {
-        "nixpkgs": "nixpkgs_2"
+        "nixpkgs": [
+          "nixpkgs"
+        ]
       },
       "locked": {
         "lastModified": 1676131462,
diff --git a/flake.nix b/flake.nix
index f72852b..b50411a 100644
--- a/flake.nix
+++ b/flake.nix
@@ -5,6 +5,7 @@
     flake-parts.url = "github:hercules-ci/flake-parts";
     haskell-flake.url = "github:srid/haskell-flake";
     treefmt-nix.url = "github:numtide/treefmt-nix";
+    treefmt-nix.inputs.nixpkgs.follows = "nixpkgs";
     flake-root.url = "github:srid/flake-root";
     mission-control.url = "github:Platonic-Systems/mission-control";