chore: update nixpkgs

Author: robjtede

.github/workflows/ci.yml

@@ -37,8 +37,13 @@ jobs:
     steps:
       - uses: actions/checkout@v5
 
-      - name: Install Nix
-        uses: cachix/install-nix-action@v31
+      - name: Install Determinate Nix
+        uses: DeterminateSystems/determinate-nix-action@v3
+        with:
+          extra-conf: lazy-trees = true
+
+      - name: Set up FlakeHub Cache
+        uses: DeterminateSystems/flakehub-cache-action@v2
 
       - name: Install Rust (${{ matrix.toolchain.name }})
         uses: actions-rust-lang/[email protected]

.github/workflows/coverage.yml

@@ -18,8 +18,13 @@ jobs:
     steps:
       - uses: actions/checkout@v5
 
-      - name: Install Nix
-        uses: cachix/install-nix-action@v31
+      - name: Install Determinate Nix
+        uses: DeterminateSystems/determinate-nix-action@v3
+        with:
+          extra-conf: lazy-trees = true
+
+      - name: Set up FlakeHub Cache
+        uses: DeterminateSystems/flakehub-cache-action@v2
 
       - name: Install Rust
         uses: actions-rust-lang/[email protected]

flake.lock

@@ -1,7 +1,6 @@
 {
   inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.11";
-    nixpkgs-unstable.url = "github:NixOS/nixpkgs/nixos-unstable";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
     flake-parts.url = "github:hercules-ci/flake-parts";
     x52 = {
       url = "github:x52dev/nix";
@@ -25,14 +24,12 @@
 
             packages = [
               config.formatter
-              inputs'.nixpkgs-unstable.legacyPackages.cargo-shear
+              pkgs.cargo-shear
               pkgs.fd
               pkgs.just
               pkgs.nodePackages.prettier
               pkgs.taplo
             ] ++ lib.optional pkgs.stdenv.isDarwin [
-              pkgs.pkgsBuildHost.darwin.apple_sdk.frameworks.CoreFoundation
-              pkgs.pkgsBuildHost.darwin.apple_sdk.frameworks.Security
               pkgs.pkgsBuildHost.libiconv
             ];