yggdrasil: evaluate which kernel to use to match zfs

modules/hosts/yggdrasil/hardware.nix

@@ -6,11 +6,24 @@
       pkgs,
       ...
     }:
+    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
     {
 
       boot = {
         zfs.package = pkgs.zfs_2_4;
-        kernelPackages = pkgs.linuxPackages_latest;
+        kernelPackages = latestKernelPackage;
         extraModulePackages = with config.boot.kernelPackages; [ r8125 ];
         blacklistedKernelModules = [ "r8169" ];