diff --git a/.builds/apu.yml b/.builds/apu.yml
index 4082ef4..0c201aa 100644
--- a/.builds/apu.yml
+++ b/.builds/apu.yml
@@ -4,4 +4,4 @@ environment:
 tasks:
   - build: |
       cd NixOS
-      nix build '.#nixosConfigurations.apu.config.system.build.toplevel'
+      nix build --dry-run '.#nixosConfigurations.apu.config.system.build.toplevel'
diff --git a/.builds/freun-dev.yml b/.builds/freun-dev.yml
index 141d8fa..0a72cab 100644
--- a/.builds/freun-dev.yml
+++ b/.builds/freun-dev.yml
@@ -4,4 +4,4 @@ environment:
 tasks:
   - build: |
       cd NixOS
-      nix build '.#nixosConfigurations.freun-dev.config.system.build.toplevel'
+      nix build --dry-run '.#nixosConfigurations.freun-dev.config.system.build.toplevel'
diff --git a/.builds/radish.yml b/.builds/radish.yml
new file mode 100644
index 0000000..8ba300f
--- /dev/null
+++ b/.builds/radish.yml
@@ -0,0 +1,7 @@
+image: nixos/unstable
+environment:
+  NIX_CONFIG: "experimental-features = nix-command flakes"
+tasks:
+  - build: |
+      cd NixOS
+      nix build --dry-run '.#nixosConfigurations.radish.config.system.build.toplevel'