From f7ab3131a8a2774038953d91a8e93ee18f08f6b0 Mon Sep 17 00:00:00 2001
From: Hugo <hugo.talbot@sofa-framework.org>
Date: Fri, 23 Jan 2026 20:11:02 +0100
Subject: [PATCH 1/2] Update cachix/install-nix-action to version 31

Changes according to https://github.com/cachix/install-nix-action/issues/224
---
 .github/workflows/nix.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index a1bff8fcec3..0bd6ed4f2b9 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -12,7 +12,7 @@ jobs:
         os: [ubuntu, macos]
     steps:
       - uses: actions/checkout@v4
-      - uses: cachix/install-nix-action@v27
+      - uses: cachix/install-nix-action@v31
       # TODO: the "sofa" account on cachix does not exist yet
       #- uses: cachix/cachix-action@v15
         #with:

From c94be6807ebfb5fe36bddd42fd9b26c8f711a198 Mon Sep 17 00:00:00 2001
From: Frederick Roy <froy@lnrobo.com>
Date: Wed, 28 Jan 2026 14:21:45 +0900
Subject: [PATCH 2/2] add missing dep (json)

---
 package.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/package.nix b/package.nix
index 41af729d90a..dcefdeb7b47 100644
--- a/package.nix
+++ b/package.nix
@@ -10,6 +10,7 @@
   qt6Packages,
   libGL,
   metis,
+  nlohmann_json,
   stdenv,
   tinyxml-2,
   zlib,
@@ -53,6 +54,7 @@ stdenv.mkDerivation (finalAttrs: {
     qt6Packages.qtbase
     libGL
     metis
+    nlohmann_json
     tinyxml-2
     zlib
   ];