From accb330589e9d39cd58347d265905572334f09ab Mon Sep 17 00:00:00 2001
From: Ivan Malison <IvanMalison@gmail.com>
Date: Wed, 29 Jan 2025 00:51:36 -0700
Subject: [PATCH] [NixOS] Configure otbr matter server and more for Home
 Assistant

---
 nixos/machines/justin-bieber-creek.nix | 46 +++++++++++++++++++++++++-
 nixos/overlay.nix                      |  1 +
 2 files changed, 46 insertions(+), 1 deletion(-)

diff --git a/nixos/machines/justin-bieber-creek.nix b/nixos/machines/justin-bieber-creek.nix
index f5f55ad9..1c3e4b0f 100644
--- a/nixos/machines/justin-bieber-creek.nix
+++ b/nixos/machines/justin-bieber-creek.nix
@@ -10,8 +10,47 @@
   myModules.desktop.enable = true;
   myModules.xmonad.enable = true;
 
+  networking.enableIPv6 = true;
+
+  boot.kernel.sysctl = {
+    # For all interfaces (e.g. if you want to accept RA on all):
+    "net.ipv6.conf.all.accept_ra" = lib.mkForce "1";
+    "net.ipv6.conf.all.accept_ra_rt_info_max_plen" = lib.mkForce "64";
+    "net.ipv6.conf.default.accept_ra" = lib.mkForce "1";
+    "net.ipv6.conf.default.accept_ra_rt_info_max_plen" = lib.mkForce "64";
+    "net.ipv6.conf.wlo1.accept_ra" = lib.mkForce "1";
+    "net.ipv6.conf.wlo1.accept_ra_rt_info_max_plen" = lib.mkForce "64";
+
+    # Ensure forwarding is off on all interfaces unless needed
+    "net.ipv6.conf.all.forwarding" = lib.mkForce "0";
+  };
+
+  systemd.services.otbr-agent = {
+    wants = [ "network-online.target" ];
+    after = [ "network-online.target" ];
+  };
+
+  services.openthread-border-router = {
+    enable = true;
+    backboneInterface = "wpan0";
+    logLevel = "debug";
+    radio =  {
+      device = "/dev/serial/by-id/usb-Nabu_Casa_Home_Assistant_Connect_ZBT-1_0cd053abfa38ef119c66e1d154516304-if00-port0";
+      baudRate = 460800;
+      flowControl = true;
+    };
+    web = {
+      listenPort = 8087;
+    };
+    rest = {
+      listenPort = 8089;
+    };
+  };
+
   services.matter-server = {
     enable = true;
+    logLevel = "debug";
+    extraArgs = ["--bluetooth-adapter=0"];
   };
 
   services.home-assistant = {
@@ -24,8 +63,11 @@
       "google_assistant"
       "homeassistant_hardware"
       "homeassistant_sky_connect"
+      "homekit_controller"
+      "ibeacon"
       "isal"
       "kef"
+      "kegtron"
       "matter"
       "met"
       "opensky"
@@ -49,6 +91,8 @@
 
   boot.loader.systemd-boot.configurationLimit = 3;
 
+  boot.kernelPackages = pkgs.linuxPackages_latest;
+
   boot.initrd.availableKernelModules = [ "xhci_pci" "ahci" "usbhid" "usb_storage" "sd_mod" ];
   boot.initrd.kernelModules = [ ];
   boot.kernelModules = [ "kvm-intel" ];
@@ -73,7 +117,7 @@
 
   networking.hostName = "justin-bieber-creek";
 
-  networking.useDHCP = lib.mkDefault true;
+  networking.useDHCP = false;
   nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
   powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
   hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
diff --git a/nixos/overlay.nix b/nixos/overlay.nix
index b54e27f6..9011a454 100644
--- a/nixos/overlay.nix
+++ b/nixos/overlay.nix
@@ -120,6 +120,7 @@ final: prev:
   python-with-my-packages = let
     my-python-packages = python-packages:
     with python-packages; [
+      universal-silabs-flasher
       argcomplete
       appdirs
       ipdb