diff --git a/build.sh b/build.sh
index 7209e050..046018a7 100755
--- a/build.sh
+++ b/build.sh
@@ -5,6 +5,8 @@ set -x
 nix-build \
     --no-out-link \
     --pure \
+    --builders 'ssh://charlotte@sunspear.vanpetegem.me' \
+    --extra-substituters 'ssh://charlotte@sunspear.vanpetegem.me' \
     "${@}"
 
 exit 0
diff --git a/configurations/nix-store.nix b/configurations/nix-store.nix
index 01e7d461..4129ba56 100644
--- a/configurations/nix-store.nix
+++ b/configurations/nix-store.nix
@@ -11,6 +11,7 @@
       automatic = true;
       dates = [ "hourly" ];
     };
+    trustedUsers = [ "@wheel" ];
   };
 
   nixpkgs.config = import ./nix-store/config.nix;