diff --git a/hosts/freun-dev/configuration.nix b/hosts/freun-dev/configuration.nix
index 14bcc05..13d50d7 100644
--- a/hosts/freun-dev/configuration.nix
+++ b/hosts/freun-dev/configuration.nix
@@ -30,6 +30,7 @@ in
 
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
+  boot.binfmt.emulatedSystems = [ "x86_64-linux" ];
 
   networking.hostName = "freun-dev"; # Define your hostname.
   networking.domain = "freun.dev";
diff --git a/hosts/radish/configuration.nix b/hosts/radish/configuration.nix
index 8b78417..8a1ad83 100644
--- a/hosts/radish/configuration.nix
+++ b/hosts/radish/configuration.nix
@@ -8,7 +8,14 @@
         maxJobs = 8;
         protocol = "ssh";
         sshUser = "builder";
-        system = "aarch64-linux";
+        systems = [
+          "aarch64-linux"
+        ];
+        supportedFeatures = [
+          "kvm"
+          "big-parallel"
+          "nixos-test"
+        ];
       }
     ];
     settings = {