From c9a1d2da80bca0a85e8c18f6d2db71c4d1127eda Mon Sep 17 00:00:00 2001
From: Collin Williams <96917990+bluedragon1221@users.noreply.github.com>
Date: Thu, 29 Jan 2026 20:15:19 -0600
Subject: Spring Cleaning

- create new module, `system`, that consumes the `boot` module and takes
in the more system-interested services from the `services` module
- touch up left over services (which are more self-hosting interested)
- touch up yo and yoshi configs
---
 modules/services/nixos/adguard.nix | 40 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 modules/services/nixos/adguard.nix

(limited to 'modules/services/nixos/adguard.nix')

diff --git a/modules/services/nixos/adguard.nix b/modules/services/nixos/adguard.nix
new file mode 100644
index 0000000..f59934e
--- /dev/null
+++ b/modules/services/nixos/adguard.nix
@@ -0,0 +1,40 @@
+{
+  config,
+  lib,
+  ...
+}: let
+  cfg = config.collinux.services.adguard;
+in {
+  imports = [
+    (import ./mkCaddyCfg.nix cfg)
+  ];
+
+  config = lib.mkIf cfg.enable {
+    services.adguardhome = {
+      enable = true;
+      port = cfg.port;
+      mutableSettings = true;
+      settings = {
+        http = {
+          pprof.enabled = false;
+          address = "localhost:${toString cfg.port}";
+        };
+        users = []; # disable auth (only accessable over tailscale anyway)
+        dns = {
+          bind_hosts = ["127.0.0.1" cfg.bind_host];
+          upstream_dns = ["https://dns.quad9.net/dns-query"];
+          enable_dnssec = true;
+        };
+        tls.enabled = false;
+        dhcp.enabled = false;
+      };
+    };
+
+    # disable systemd-resolved (https://github.com/AdguardTeam/AdGuardHome/wiki/FAQ#bindinuse)
+    services.resolved.extraConfig = lib.mkIf config.services.resolved.enable ''
+      DNS=127.0.0.1
+      DNSStubListener=no
+    '';
+    services.tailscale.extraSetFlags = lib.optional config.collinux.services.networking.tailscale.enable "--accept-dns=false"; # would create an infinite loop of dns lookups
+  };
+}
-- 
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