diff --git a/nixos/config/muon.nix b/nixos/config/muon.nix
index 94f872b..1512ec3 100644
--- a/nixos/config/muon.nix
+++ b/nixos/config/muon.nix
@@ -178,15 +178,6 @@ imports = [
         supportedFeatures = base ++ [ "gccarch-rv64imac" "gccarch-rv64imacfd" ];
         sshKey = "/etc/keys/nix-ssh";
       }
-      {
-        hostName = "machine-0008.cloud-v.co";
-        sshUser = "root";
-        maxJobs = 2;
-        speedFactor = 4;
-        systems = [ "riscv64-linux" ];
-        supportedFeatures = base ++ [ "gccarch-rv64imac" "gccarch-rv64imacfd" ];
-        sshKey = "/etc/keys/nix-ssh";
-      }
     ] ++ (lib.range 1 8 |> map (num: {
       hostName = "build-worker-0${toString num}";
       protocol = "ssh-ng";
@@ -211,21 +202,16 @@ imports = [
       "[build-worker-kyoumanet.fly.dev]:2206".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGf0kxGgwOG9KhUhvxxTSiQC5YikrzZXKDgSpBw33qN4";
       "[build-worker-kyoumanet.fly.dev]:2207".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIL9z95a6Fn/dB+iNigEYpuJdBnBwCkIZYaKHcFbGP+RY";
       "[build-worker-kyoumanet.fly.dev]:2208".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIAk+FNMhTfAVqk3MfLp4QiG/i5ti53DlpnC0q+sOvU9O";
-      "[machine.cloud-v.co]:20008".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIK6Kri0cjPKEXXDEl2GwfwzPO9wuPZEgJS0M6lKRHCqH";
       "integra.kyouma.net".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIIBwEQiSfaDrUAwgul4mktusBPcIVxI4pLNDh9DPopVU";
       "schrodinger.kyouma.net".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKo7vZ6lS1wx76YsbAdhOsGcc20YMAW52ep8SZ/FCHDp";
       "zh1830.rsync.net".publicKey = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIJtclizeBy1Uo3D86HpgD3LONGVH0CJ0NT+YfZlldAJd";
     };
 
-    extraConfig = ''
-      Host machine-0008.cloud-v.co
-        Hostname machine.cloud-v.co
-        Port 20008
-    '' + (lib.range 1 8 |> map (num: ''
+    extraConfig = lib.range 1 8 |> map (num: ''
       Host build-worker-0${toString num}
         Hostname build-worker-kyoumanet.fly.dev
         Port 220${toString num}
-    '') |> lib.concatStrings);
+    '') |> lib.concatStrings;
   };
 
   services.beesd.filesystems.root = {