diff --git a/flake.nix b/flake.nix
index 5448dbec..f0e985d7 100644
--- a/flake.nix
+++ b/flake.nix
@@ -694,10 +694,10 @@
 
         sshlog = nixosSystem' {
           modules = [
-            ./hosts/sshlog
             self.nixosModules.cluster-options
             self.nixosModules.microvm
             sshlogd.nixosModule
+            ./hosts/sshlog
           ];
         };
 
diff --git a/hosts/activity-relay/default.nix b/hosts/activity-relay/default.nix
index 719decd3..050613c9 100644
--- a/hosts/activity-relay/default.nix
+++ b/hosts/activity-relay/default.nix
@@ -1,4 +1,4 @@
-{ config, pkgs, ... }:
+{ config, ... }:
 {
   c3d2 = {
     deployment.server = "server10";
diff --git a/hosts/home-assistant/default.nix b/hosts/home-assistant/default.nix
index 0913bf93..63610050 100644
--- a/hosts/home-assistant/default.nix
+++ b/hosts/home-assistant/default.nix
@@ -1,4 +1,4 @@
-{ config, lib, pkgs, ... }:
+{ config, pkgs, ... }:
 
 let
   c3d2MacAddress = "00:0b:ad:00:1d:ea";
diff --git a/hosts/mailtngbert/default.nix b/hosts/mailtngbert/default.nix
index 7135bd9f..9363749e 100644
--- a/hosts/mailtngbert/default.nix
+++ b/hosts/mailtngbert/default.nix
@@ -48,6 +48,7 @@ in
 
   services = {
     portunus.addToHosts = true;
+
     postfix = {
       enable = true;
       enableSmtp = true;
diff --git a/hosts/radiobert/default.nix b/hosts/radiobert/default.nix
index 85512347..5764d09e 100644
--- a/hosts/radiobert/default.nix
+++ b/hosts/radiobert/default.nix
@@ -111,9 +111,8 @@
     journald.extraConfig = ''
       Storage=volatile
     '';
-    openssh = {
-      enable = true;
-    };
+    openssh.enable = true;
+
     # Allow access to USB
     udev.extraRules = ''
       SUBSYSTEM=="usb", MODE:="0666"
diff --git a/modules/backup.nix b/modules/backup.nix
index c62d396d..f4488fe1 100644
--- a/modules/backup.nix
+++ b/modules/backup.nix
@@ -43,9 +43,9 @@ in
               "/etc/machine-id"
               "/etc/passwd"
               "/etc/shadow"
-              "/etc/ssh/ssh_host_rsa_key"
               "/etc/ssh/ssh_host_ed25519_key"
               "/etc/ssh/ssh_host_ed25519_key.pub"
+              "/etc/ssh/ssh_host_rsa_key"
               "/etc/ssh/ssh_host_rsa_key.pub"
               "/etc/subgid"
               "/etc/subuid"
diff --git a/modules/microvm.nix b/modules/microvm.nix
index 397aafaa..a05166fd 100644
--- a/modules/microvm.nix
+++ b/modules/microvm.nix
@@ -1,4 +1,4 @@
-{ zentralwerk, options, config, lib, pkgs, ... }:
+{ zentralwerk, config, lib, pkgs, ... }:
 
 let
   defaultGateways = {
@@ -60,9 +60,7 @@ in
     };
 
     mountBase = mkOption {
-      description = ''
-        Location (ZFS dataset, ...) where all the shares live.
-      '';
+      description = "Location (ZFS dataset, ...) where all the shares live.";
       type = types.path;
       default = "/var/lib/microvms/${hostName}";
     };