profiles/base: Switch to nix.buildCores

This option has been there for a long time (since
NixOS/nixpkgs@e8dace2), so let's actually use it instead of putting it
into extraOptions to make sure we get an error should the option be
renamed or removed.

Signed-off-by: aszlig <aszlig@redmoonstudios.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/modules/user/aszlig/profiles/base.nix b/modules/user/aszlig/profiles/base.nix
index 4fa7efa7..7d00f1d4 100644
--- a/modules/user/aszlig/profiles/base.nix
+++ b/modules/user/aszlig/profiles/base.nix
@@ -12,8 +12,8 @@ in {
     nix = {
       useChroot = true;
       readOnlyStore = true;
+      buildCores = 0;
       extraOptions = ''
-        build-cores = 0
         auto-optimise-store = true
       '';
     };