Fix duplicate ${system} in flake tutorial (#1729)

When I followed this tutorial, my default package ended up as `packages.aarch64-darwin.aarch64-darwin.default`. Removing this "extra" `${system}` solves the problem, but admittedly I'm not 100% sure what's going on here.
input-output-hk · Oct 2, 2022 · 127e423 · 127e423
1 parent 1fbe8f6
commit 127e423
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/docs/tutorials/getting-started-flakes.md b/docs/tutorials/getting-started-flakes.md
@@ -97,7 +97,7 @@ Add `flake.nix`:
       };
     in flake // {
       # Built by `nix build .`
-      packages.${system}.default = flake.packages."hello:exe:hello";
+      packages.default = flake.packages."hello:exe:hello";
     });
 }
 ```