config: make instance description configurable

config/config.exs

@@ -52,6 +52,7 @@
   version: version,
   name: "Pleroma",
   email: "example@example.com",
+  description: "A Pleroma instance, an alternative fediverse server",
   limit: 5000,
   upload_limit: 16_000_000,
   registrations_open: true,

lib/pleroma/web/mastodon_api/mastodon_api_controller.ex

@@ -125,7 +125,7 @@ def masto_instance(conn, _params) do
     response = %{
       uri: Web.base_url(),
       title: Keyword.get(@instance, :name),
-      description: "A Pleroma instance, an alternative fediverse server",
+      description: Keyword.get(@instance, :description),
       version: "#{@mastodon_api_level} (compatible; #{Keyword.get(@instance, :version)})",
       email: Keyword.get(@instance, :email),
       urls: %{

lib/pleroma/web/nodeinfo/nodeinfo_controller.ex

@@ -43,7 +43,9 @@ def nodeinfo(conn, %{"version" => "2.0"}) do
       },
       metadata: %{
         nodeName: Keyword.get(instance, :name),
-        mediaProxy: Keyword.get(media_proxy, :enabled)
+        nodeDescription: Keyword.get(instance, :description),
+        mediaProxy: Keyword.get(media_proxy, :enabled),
+        private: !Keyword.get(instance, :public, true)
       }
     }