CI: update actions

nix/overlays: simplify overlay

.github/workflows/nix-build.yaml

@@ -8,14 +8,9 @@ jobs:
     steps:
     - name: Clone repository
       uses: actions/checkout@v3
-      with:
-        submodules: recursive
-    - name: Install nix
-      uses: cachix/install-nix-action@v17
-      with:
-        install_url: https://releases.nixos.org/nix/nix-2.10.3/install
-        extra_nix_config: |
-          auto-optimise-store = true
-          experimental-features = nix-command flakes
+
+    - uses: cachix/install-nix-action@v27
+    - uses: DeterminateSystems/magic-nix-cache-action@main
+
     - name: Build xdg-desktop-portal-hyprland
-      run: nix build --print-build-logs
+      run: nix build --print-build-logs --extra-substituters "https://hyprland.cachix.org"

nix/overlays.nix

@@ -18,15 +18,15 @@
 in {
   default = mkJoinedOverlays (with self.overlays; [
     xdg-desktop-portal-hyprland
+    inputs.hyprlang.overlays.default
+    inputs.hyprland-protocols.overlays.default
   ]);
   xdg-desktop-portal-hyprland = lib.composeManyExtensions [
     (final: prev: {
       xdg-desktop-portal-hyprland = final.callPackage ./default.nix {
         stdenv = prev.gcc13Stdenv;
-        inherit (final) hyprland-protocols;
         inherit (final.qt6) qtbase qttools wrapQtAppsHook qtwayland;
         inherit version;
-        inherit (inputs.hyprlang.packages.${prev.system}) hyprlang;
       };
     })
   ];