try

.github/workflows/ci.yml

@@ -20,18 +20,10 @@ jobs:
           nix-channel --add https://nixos.org/channels/nixpkgs-unstable nixpkgs
           nix-channel --update
           nix-env -iA nixfmt-rfc-style -f '<nixpkgs>'
-      - name: Install nix-darwin and test
+      - name: Install nix-darwin
         run: |
           export NIX_PATH=$HOME/.nix-defexpr/channels
-          # We run nix-darwin twice to test that it can create darwin-configuration correctly for us
-          # but we expect it to fail setting up /etc/nix/nix.conf
-          nix-shell -A installer || true
-          nixConfHash=$(shasum -a 256 /etc/nix/nix.conf | cut -d ' ' -f 1)
-          /usr/bin/sed -i.bak \
-            "s/# nix.package = pkgs.nix;/nix.settings.access-tokens = [ \"github.com=\${{ secrets.GITHUB_TOKEN }}\" ]; environment.etc.\"nix\/nix.conf\".knownSha256Hashes = [ \"$nixConfHash\" ];/" \
-            ~/.nixpkgs/darwin-configuration.nix
           nix-shell -A installer
-          nix-shell -A installer.check
       - uses: cachix/cachix-action@v14
         with:
           name: mycache