feat: add git server to tailnet

systems/x86_64-linux/git/default.nix

@@ -4,9 +4,12 @@
   ...
 }: let
   domain = "git.alejandr0angul0.dev";
+  secrets = config.age.secrets;
 in {
   imports = ["${inputs.nixpkgs}/nixos/modules/virtualisation/digital-ocean-config.nix"];
 
+  age.secrets.authKeyFile.file = ../../../secrets/tailscale_git_server.age;
+
   aa = {
     nix.enable = true;
 
@@ -17,6 +20,10 @@ in {
 
     services = {
       openssh.enable = true;
+      tailscale = {
+        enable = true;
+        configureClientRouting = true;
+      };
     };
   };
 
@@ -25,6 +32,11 @@ in {
     enableACME = true;
   };
 
+  services.tailscale = {
+    authKeyFile = secrets.authKeyFile.path;
+    extraUpFlags = ["--ssh"];
+  };
+
   security.acme = {
     acceptTerms = true;
     defaults = {