add age and test with tailscale

hosts/snowbelle/configuration.nix

@@ -29,6 +29,9 @@
     blake.enable = true;
   };
 
+  # age
+  age.keyFile = ../../.keyring/age/keys.txt;
+
   # passwordless rebuild
   security.sudo.extraRules = [
     {

modules/system/tailscale.nix

@@ -1,6 +1,14 @@
 { pkgs, config, lib, ... }:
 
 {
+  age.secrets."tailscale_authkey" = {
+    file = ../../secrets/tailscale_authkey.txt.age;
+    owner = "blake";
+    group = "blake";
+    mode = "0400";
+  };
+
+
   options = {
     modules.system.tailscale.enable = lib.mkEnableOption "enables tailscale";
   };
@@ -10,7 +18,7 @@
       enable = true;
 
       useRoutingFeatures = "both";
-      authKeyFile = "/home/blake/.nix/.keyring/tailscale/authkey";
+      authKeyFile = "/run/agenix/tailscale_authkey";
     };
   };
 }