Update hosts/server/configuration.nix

hosts/server/configuration.nix

@@ -3,8 +3,22 @@
 # https://search.nixos.org/options and in the NixOS manual (`nixos-help`).
 
 { config, lib, pkgs, inputs,... }:
-
+let
+  zfsCompatibleKernelPackages = lib.filterAttrs (
+    name: kernelPackages:
+    (builtins.match "linux_[0-9]+_[0-9]+" name) != null
+    && (builtins.tryEval kernelPackages).success
+    && (!kernelPackages.${config.boot.zfs.package.kernelModuleAttribute}.meta.broken)
+  ) pkgs.linuxKernel.packages;
+  latestKernelPackage = lib.last (
+    lib.sort (a: b: (lib.versionOlder a.kernel.version b.kernel.version)) (
+      builtins.attrValues zfsCompatibleKernelPackages
+    )
+  );
+in
 {
+  # Note this might jump back and forth as kernels are added or removed.
+  boot.kernelPackages = latestKernelPackage;
   imports =
     [ # Include the results of the hardware scan.
       ../../common/configuration.nix