From 17e11a17a4b8635b88648fdcc6e3b0446f7cc43f Mon Sep 17 00:00:00 2001
From: Hakula Chen <i@hakula.xyz>
Date: Wed, 19 Aug 2026 15:48:57 +0800
Subject: [PATCH] chore(flake): format through nixfmt-tree instead of nixfmt

nixfmt 1.4.0 deprecates bare invocation and passing a directory, so both
`nix fmt` and `nix fmt .` now warn or fail. The replacement nixfmt points
at is a treefmt wrapper, which nixpkgs ships as nixfmt-tree. nixfmt is
still the formatter underneath, so nothing gets reformatted.
---
 flake.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/flake.nix b/flake.nix
index ec466d80..61ca2ebf 100644
--- a/flake.nix
+++ b/flake.nix
@@ -187,7 +187,7 @@
           pre-commit = preCommitCheck;
         };
 
-        formatter = pkgs.nixfmt;
+        formatter = pkgs.nixfmt-tree;
       }
     );
 }