wip: gha test

.github/workflows/baboon-build.yml

@@ -74,22 +74,13 @@ jobs:
       - ${{ matrix.runs-on }}
     steps:
       - uses: actions/checkout@v4
-      - name: Install Nix (Mac)
-        if: matrix.preconfigured != true
-        uses: cachix/install-nix-action@v27
-        with:
-          nix_path: nixpkgs=channel:nixos-unstable
-      - name: Restore and cache Nix store
-        uses: nix-community/cache-nix-action@v5
-        if: matrix.preconfigured != true
-        with:
-          primary-key: nix-${{ matrix.target }}-${{ hashFiles('**/*.nix') }}
-          restore-prefixes-first-match: nix-${{ matrix.target }}-
-          gc-max-store-size-linux: 1073741824
-          purge: true
-          purge-prefixes: cache-${{ matrix.target }}-
-          purge-created: 0
-          purge-primary-key: never
+      - uses: nixbuild/nix-quick-install-action@v28
+      - run: nix build --version
+#      - name: Install Nix (Mac)
+#        if: matrix.preconfigured != true
+#        uses: cachix/install-nix-action@v27
+#        with:
+#          nix_path: nixpkgs=channel:nixos-unstable
       - name: Build (Mac)
         run: |
           ./nix-rebuild.sh

flake.nix

@@ -1,6 +1,8 @@
 {
   description = "baboon build environment";
 
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/24.05";
+
   inputs.flake-utils.url = "github:numtide/flake-utils";
 
   outputs = { self, nixpkgs, flake-utils }: