Update

lib/nulla_web/controllers/generic/nodeinfo_controller.ex

@@ -0,0 +1,28 @@
+defmodule NullaWeb.Generic.NodeinfoController do
+  use NullaWeb, :controller
+  alias Nulla.Accounts
+  alias NullaWeb.Generic.NodeinfoJSON
+
+  def index(conn, _params) do
+    url = NullaWeb.Endpoint.url()
+
+    json(conn, NodeinfoJSON.index(url))
+  end
+
+  def show(conn, _params) do
+    version = Application.spec(:nulla, :vsn) |> to_string()
+    total = Accounts.get_total_users_count()
+    month = Accounts.get_active_users_count(30)
+    halfyear = Accounts.get_active_users_count(180)
+
+    users = %{
+      total: total,
+      month: month,
+      halfyear: halfyear
+    }
+
+    instance = Application.get_env(:nulla, :instance) |> Map.new()
+
+    json(conn, NodeinfoJSON.show(version, users, instance))
+  end
+end