From 8931887e59ebdac5ad277958fac4b9c7be0e3526 Mon Sep 17 00:00:00 2001
From: Marty Sluijtman <marty.wanderer@disroot.org>
Date: Mon, 1 Jan 2024 17:23:16 +0100
Subject: [PATCH] bbr tcp

---
 flake.nix          |  2 ++
 modules/kernel.nix | 17 +++++++++++++++++
 2 files changed, 19 insertions(+)
 create mode 100644 modules/kernel.nix

diff --git a/flake.nix b/flake.nix
index 280ad0b..88294a1 100644
--- a/flake.nix
+++ b/flake.nix
@@ -15,6 +15,7 @@
           ./modules/xconfig.nix
           ./modules/zsh.nix
           ./modules/prometheus.nix
+          ./modules/kernel.nix
         ];
 
       };
@@ -24,6 +25,7 @@
           ./modules/vim.nix
           ./modules/zsh.nix
           ./modules/prometheus.nix
+          ./modules/kernel.nix
         ];
       };
 
diff --git a/modules/kernel.nix b/modules/kernel.nix
new file mode 100644
index 0000000..a6ea8cc
--- /dev/null
+++ b/modules/kernel.nix
@@ -0,0 +1,17 @@
+{ ... }:
+with lib;
+let cfg = config.voidcruiser.kernelTweaks;
+in {
+  options.voidcruiser.kernelTweaks = {
+    enable = mkEnableOption "Enables kernel tweaks";
+  };
+  config = mkIf cfg.enable {
+    boot = {
+      kernelModules = [ "tcp_bbr" ];
+      kernel.sysctl = {
+        "net.ipv4.tcp_congestion_control" = "bbr";
+        "net.core.default_qdisc" = "fq";
+      };
+    };
+  };
+}