installed tailscale on all machines

modules/nixos-modules/tailscale.nix

@@ -0,0 +1,34 @@
+{
+  config,
+  lib,
+  ...
+}: let
+  tailscale_data_directory = "/var/lib/tailscale";
+in {
+  options.host.tailscale = {
+    enable = lib.mkEnableOption "should tailscale be enabled on this computer";
+  };
+
+  config = lib.mkIf config.services.tailscale.enable (
+    lib.mkMerge [
+      {
+        # any configs we want shared between all machines
+      }
+      (lib.mkIf config.host.impermanence.enable {
+        environment.persistence = {
+          "/persist/system/root" = {
+            enable = true;
+            hideMounts = true;
+            directories = [
+              {
+                directory = tailscale_data_directory;
+                user = "jellyfin";
+                group = "jellyfin";
+              }
+            ];
+          };
+        };
+      })
+    ]
+  );
+}