seperate kernel config

modules/nixos/common/common-kernel.ulu.nix

@@ -0,0 +1,25 @@
+{ ... }:
+{
+  flake.nixosModules.common-kernel =
+    { pkgs, ... }:
+    {
+      # interesting...
+      boot.kernelPackages = pkgs.linuxPackages_latest;
+
+      boot.kernelParams = [
+        "mitigations=off"
+        "nmi_watchdog=1"
+        "transparent_hugepage=madvise"
+      ];
+
+      boot.kernelModules = [
+        "tcp_bbr"
+        "sch_fq"
+      ];
+
+      boot.kernel.sysctl = {
+        "net.core.default_qdisc" = "fq";
+        "net.ipv4.tcp_congestion_control" = "bbr";
+      };
+    };
+}