chore: Remove unused variables and imports

fleet/boot.nix

@@ -6,7 +6,7 @@
 # - Timezone and locale settings
 # - Systemd sleep configuration
 
-{ config, lib, ... }:
+{ lib, ... }:
 {
   boot = {
     loader.systemd-boot.enable = lib.mkDefault true;

fleet/common.nix

@@ -5,7 +5,6 @@
 # It is automatically imported by the fleet generator for every host.
 
 {
-  inputs,
   config,
   lib,
   ...

fleet/default.nix

@@ -165,8 +165,6 @@ let
     let
       hostType = config.type or prefix;
       system = config.system or "x86_64-linux";
-      devices = config.devices or { };
-      hasCount = config ? count;
 
       # Helper to generate hostname from prefix and suffix
       # Numbers get no dash: "nix-surface1", "nix-surface2"

fleet/fleet-option.nix

@@ -31,7 +31,7 @@ let
                 lib.types.int
                 (lib.types.attrsOf (
                   lib.types.submodule (
-                    { name, ... }:
+                    { ... }:
                     {
                       freeformType = lib.types.attrs;
                     }