added a new host machine

modules/nixos/headscale.nix

@@ -0,0 +1,61 @@
+{ config, lib, pkgs, ... }: {
+
+  security = {
+    acme = {
+      defaults.email = "0xtux@pm.me";
+      acceptTerms = true;
+    };
+  };
+
+  services = {
+    headscale = {
+      enable = true;
+      port = 8080;
+      address = "0.0.0.0";
+      settings = {
+        dns_config = {
+          override_local_dns = true;
+          base_domain = "0xtux.com";
+          magic_dns = true;
+          nameservers = [
+            "1.1.1.1"
+          ];
+        };
+        server_url = "https://hs.0xtux.com";
+        metrics_listen_addr = "0.0.0.0:8095";
+        logtail = {
+          enabled = false;
+        };
+        log = {
+          level = "warn";
+        };
+        ip_prefixes = [
+          "100.64.0.0/10"
+          "fd7a:115c:a1e0::/48"
+        ];
+      };
+    };
+
+    nginx = {
+      enable = true;
+      virtualHosts = {
+        "hs.0xtux.com" = {
+          forceSSL = true;
+          enableACME = true;
+          locations = {
+            "/" = {
+              proxyPass = "http://localhost:${toString config.services.headscale.port}";
+              proxyWebsockets = true;
+            };
+            "/metrics" = {
+              proxyPass = "http://${config.services.headscale.settings.metrics_listen_addr}/metrics";
+            };
+          };
+        };
+      };
+    };
+  };
+
+  networking.firewall.allowedTCPPorts = [ 80 443 ];
+  environment.systemPackages = with pkgs;[ headscale ];
+}