diff --git a/.github/workflows/build-machines-and-homes.yml b/.github/workflows/build-machines-and-homes.yml
index 7278ee3..7731122 100644
--- a/.github/workflows/build-machines-and-homes.yml
+++ b/.github/workflows/build-machines-and-homes.yml
@@ -10,8 +10,8 @@ env:
     extra-substituters = https://cache.cy7.sh/main
     extra-trusted-public-keys = main:Ku31HoEWcBtfggge2VGj+QTkVrQuIwRIMGyfV/5VQP0=
     experimental-features = nix-command flakes
-    extra-experimental-features = nix-command flakes
     accept-flake-config = true
+    system-features = nixos-test benchmark big-parallel kvm
   TERM: ansi
 jobs:
   build-machines:
diff --git a/.github/workflows/build-packages.yml b/.github/workflows/build-packages.yml
index 872aa6d..fb0620e 100644
--- a/.github/workflows/build-packages.yml
+++ b/.github/workflows/build-packages.yml
@@ -13,7 +13,6 @@ env:
     extra-substituters = https://cache.cy7.sh/main
     extra-trusted-public-keys = main:Ku31HoEWcBtfggge2VGj+QTkVrQuIwRIMGyfV/5VQP0=
     experimental-features = nix-command flakes
-    extra-experimental-features = nix-command flakes
     accept-flake-config = true
   TERM: ansi
 jobs: