2 files changed, 24 insertions, 19 deletions
diff --git a/pkgs/by-name/fu/fupdate-sys/fupdate-sys.sh b/pkgs/by-name/fu/fupdate-sys/fupdate-sys.sh
index 4ec3e9e8..57ced766 100755
--- a/pkgs/by-name/fu/fupdate-sys/fupdate-sys.sh
+++ b/pkgs/by-name/fu/fupdate-sys/fupdate-sys.sh
@@ -151,7 +151,7 @@ msg2 "Updating git repository..."
 git pull --rebase
 
 # We use a tempfile, to make this truly async.
-default_branch=$(mktemp)
+default_branch=$(mktemp -t fupdate_flake_XXXX)
 cleanup() {
     rm "$default_branch"
 }
diff --git a/pkgs/by-name/fu/fupdate-sys/package.nix b/pkgs/by-name/fu/fupdate-sys/package.nix
index 7fd4674b..6672c2f2 100644
--- a/pkgs/by-name/fu/fupdate-sys/package.nix
+++ b/pkgs/by-name/fu/fupdate-sys/package.nix
@@ -11,7 +11,7 @@
   writeShellApplication,
   # Dependencies
   git,
-  nixos-rebuild,
+  nixos-rebuild-ng,
   sudo,
   openssh,
   coreutils,
@@ -19,20 +19,25 @@
   gnugrep,
   gnused,
   systemd,
-}:
-writeShellApplication {
-  name = "fupdate-sys";
-  text = builtins.readFile ./fupdate-sys.sh;
-  inheritPath = false;
-  runtimeInputs = [
-    git
-    nixos-rebuild
-    sudo
-    openssh
-    coreutils
-    mktemp
-    gnugrep
-    gnused
-    systemd
-  ];
-}
+  lixPackageSets,
+}: let
+  nixos-rebuild-without-nix = nixos-rebuild-ng.override {
+    nix = lixPackageSets.latest.lix;
+  };
+in
+  writeShellApplication {
+    name = "fupdate-sys";
+    text = builtins.readFile ./fupdate-sys.sh;
+    inheritPath = false;
+    runtimeInputs = [
+      git
+      nixos-rebuild-without-nix
+      sudo
+      openssh
+      coreutils
+      mktemp
+      gnugrep
+      gnused
+      systemd
+    ];
+  }