From fc58b0ad29d1c204a29ccb6b333dbf986d408a7b Mon Sep 17 00:00:00 2001
From: Weckyy702 <konstantin@veltko.de>
Date: Fri, 3 Apr 2026 11:34:29 +0200
Subject: [PATCH] HomeVPN: Add feature to automatically enable tailscale and
 set custom DNS nameserver

---
 modules/hosts/tux/tux.nix            |  2 +-
 modules/system-settings/home-vpn.nix | 14 ++++++++++++++
 modules/system-settings/resolved.nix |  7 +++++++
 3 files changed, 22 insertions(+), 1 deletion(-)
 create mode 100644 modules/system-settings/home-vpn.nix
 create mode 100644 modules/system-settings/resolved.nix

diff --git a/modules/hosts/tux/tux.nix b/modules/hosts/tux/tux.nix
index a816a71..edf92ee 100644
--- a/modules/hosts/tux/tux.nix
+++ b/modules/hosts/tux/tux.nix
@@ -10,7 +10,7 @@
         (autologin "weckyy702")
 
         development-tools
-        tailscale
+        home-vpn
         opentablet
 
         #TODO: laptop specific aspects like powertop
diff --git a/modules/system-settings/home-vpn.nix b/modules/system-settings/home-vpn.nix
new file mode 100644
index 0000000..e0de600
--- /dev/null
+++ b/modules/system-settings/home-vpn.nix
@@ -0,0 +1,14 @@
+{ self, ... }: {
+  flake.modules.nixos.home-vpn = {
+    imports = with self.modules.nixos; [
+      tailscale
+      resolved
+    ];
+
+    services.resolved.extraConfig = ''
+      [Resolve]
+      DNS=10.10.0.1
+      Domains=~veltnet
+    '';
+  };
+}
diff --git a/modules/system-settings/resolved.nix b/modules/system-settings/resolved.nix
new file mode 100644
index 0000000..df951a0
--- /dev/null
+++ b/modules/system-settings/resolved.nix
@@ -0,0 +1,7 @@
+{
+  flake.modules.nixos.resolved = {
+    services.resolved.enable = true;
+
+    networking.networkmanager.dns = "systemd-resolved";
+  };
+}