diff --git a/hosts/x86_64-linux/zfs-backup.nix b/hosts/x86_64-linux/zfs-backup.nix
deleted file mode 100644
index 8f3e7d1..0000000
--- a/hosts/x86_64-linux/zfs-backup.nix
+++ /dev/null
@@ -1,20 +0,0 @@
-{ ... }:
-{
-  imports = [ ../../disko/zfs-impermanence-backup.nix ];
-
-  custom = {
-    platform = {
-      impermanence.enable = true;
-      vm.enable = true;
-    };
-    services = {
-      zfsBackupServer.enable = true;
-      nixCacheClient = {
-        enable = true;
-        remoteBuilds.exclusive = true;
-      };
-    };
-  };
-  networking.hostId = "353bc8fd";
-  system.stateVersion = "25.05";
-}
diff --git a/modules/networking/ssh-keys.nix b/modules/networking/ssh-keys.nix
index f55b087..e382b94 100644
--- a/modules/networking/ssh-keys.nix
+++ b/modules/networking/ssh-keys.nix
@@ -18,7 +18,6 @@
         siit-dc = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIHCp67Rr03FH0DGhl6d2w/otBNaC5sI1y6rt5Gfi2tP6";
         syncthing = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAII8s/x8NcdOHPVcTSuVj+X9/J+qbuZEB792YaOG0CUzD";
         vaultwarden = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAII10aYyPOgpd+WAtgSyomH3sE6Cq54GftVm5xeC8KKlz";
-        zfs-backup = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOWGvIc4sq+WzPqT2y003zga3StMgj7F8vwTjNkZ//d8";
       };
       description = "attrSet of SSH public keys";
     };
diff --git a/modules/services/nix-cache-server.nix b/modules/services/nix-cache-server.nix
index 1847fe7..1d503e1 100644
--- a/modules/services/nix-cache-server.nix
+++ b/modules/services/nix-cache-server.nix
@@ -47,7 +47,6 @@ in
             keys.nextcloud
             keys.syncthing
             keys.vaultwarden
-            keys.zfs-backup
           ];
       };
     };
diff --git a/modules/services/zfs-backup-server.nix b/modules/services/zfs-backup-server.nix
deleted file mode 100644
index e2ecc43..0000000
--- a/modules/services/zfs-backup-server.nix
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  config,
-  pkgs,
-  lib,
-  ...
-}:
-let
-  cfg = config.custom.services.zfsBackupServer;
-in
-{
-  options.custom.services.zfsBackupServer.enable = lib.mkOption {
-    type = lib.types.bool;
-    default = false;
-  };
-
-  config = lib.mkIf cfg.enable {
-    users.users.root.openssh.authorizedKeys.keys = [ ];
-    environment.systemPackages = with pkgs; [ lz4 ];
-  };
-}
diff --git a/modules/services/zfs-replication.nix b/modules/services/zfs-replication.nix
deleted file mode 100644
index 0b130a7..0000000
--- a/modules/services/zfs-replication.nix
+++ /dev/null
@@ -1,21 +0,0 @@
-{ config, lib, ... }:
-let
-  cfg = config.custom.services.zfsReplication;
-in
-{
-  options.custom.services.zfsReplication.enable = lib.mkOption {
-    type = lib.types.bool;
-    default = false;
-  };
-
-  config = lib.mkIf cfg.enable {
-    services.zfs.autoReplication = {
-      enable = true;
-      host = "zfs-backup.vsinerva.fi";
-      identityFilePath = "/etc/ssh/ssh_host_ed25519_key";
-      localFilesystem = "zroot";
-      remoteFilesystem = "zroot/backups/${config.networking.hostName}";
-      username = "root";
-    };
-  };
-}