+* `show_reactions`: Let favourites and emoji reactions be viewed through the API (default: `true`).
+
+## Welcome
+* `direct_message`: - welcome message sent as a direct message.
+ * `enabled`: Enables the send a direct message to a newly registered user. Defaults to `false`.
+ * `sender_nickname`: The nickname of the local user that sends the welcome message.
+ * `message`: A message that will be send to a newly registered users as a direct message.
+* `chat_message`: - welcome message sent as a chat message.
+ * `enabled`: Enables the send a chat message to a newly registered user. Defaults to `false`.
+ * `sender_nickname`: The nickname of the local user that sends the welcome message.
+ * `message`: A message that will be send to a newly registered users as a chat message.
+* `email`: - welcome message sent as a email.
+ * `enabled`: Enables the send a welcome email to a newly registered user. Defaults to `false`.
+ * `sender`: The email address or tuple with `{nickname, email}` that will use as sender to the welcome email.
+ * `subject`: A subject of welcome email.
+ * `html`: A html that will be send to a newly registered users as a email.
+ * `text`: A text that will be send to a newly registered users as a email.
+
+ Example:
+
+ ```elixir
+ config :pleroma, :welcome,
+ direct_message: [
+ enabled: true,
+ sender_nickname: "lain",
+ message: "Hi, @username! Welcome on board!"
+ ],
+ email: [
+ enabled: true,
+ sender: {"Pleroma App", "welcome@pleroma.app"},
+ subject: "Welcome to <%= instance_name %>",
+ html: "Welcome to <%= instance_name %>",
+ text: "Welcome to <%= instance_name %>"
+ ]
+ ```
+
+## Message rewrite facility
+
+### :mrf
+* `policies`: Message Rewrite Policy, either one or a list. Here are the ones available by default:
+ * `Pleroma.Web.ActivityPub.MRF.NoOpPolicy`: Doesn’t modify activities (default).
+ * `Pleroma.Web.ActivityPub.MRF.DropPolicy`: Drops all activities. It generally doesn’t makes sense to use in production.
+ * `Pleroma.Web.ActivityPub.MRF.SimplePolicy`: Restrict the visibility of activities from certains instances (See [`:mrf_simple`](#mrf_simple)).
+ * `Pleroma.Web.ActivityPub.MRF.TagPolicy`: Applies policies to individual users based on tags, which can be set using pleroma-fe/admin-fe/any other app that supports Pleroma Admin API. For example it allows marking posts from individual users nsfw (sensitive).
+ * `Pleroma.Web.ActivityPub.MRF.SubchainPolicy`: Selectively runs other MRF policies when messages match (See [`:mrf_subchain`](#mrf_subchain)).
+ * `Pleroma.Web.ActivityPub.MRF.RejectNonPublic`: Drops posts with non-public visibility settings (See [`:mrf_rejectnonpublic`](#mrf_rejectnonpublic)).
+ * `Pleroma.Web.ActivityPub.MRF.EnsureRePrepended`: Rewrites posts to ensure that replies to posts with subjects do not have an identical subject and instead begin with re:.
+ * `Pleroma.Web.ActivityPub.MRF.AntiLinkSpamPolicy`: Rejects posts from likely spambots by rejecting posts from new users that contain links.
+ * `Pleroma.Web.ActivityPub.MRF.MediaProxyWarmingPolicy`: Crawls attachments using their MediaProxy URLs so that the MediaProxy cache is primed.
+ * `Pleroma.Web.ActivityPub.MRF.MentionPolicy`: Drops posts mentioning configurable users. (See [`:mrf_mention`](#mrf_mention)).
+ * `Pleroma.Web.ActivityPub.MRF.VocabularyPolicy`: Restricts activities to a configured set of vocabulary. (See [`:mrf_vocabulary`](#mrf_vocabulary)).
+ * `Pleroma.Web.ActivityPub.MRF.ObjectAgePolicy`: Rejects or delists posts based on their age when received. (See [`:mrf_object_age`](#mrf_object_age)).
+ * `Pleroma.Web.ActivityPub.MRF.ActivityExpirationPolicy`: Sets a default expiration on all posts made by users of the local instance. Requires `Pleroma.ActivityExpiration` to be enabled for processing the scheduled delections.
+* `transparency`: Make the content of your Message Rewrite Facility settings public (via nodeinfo).
+* `transparency_exclusions`: Exclude specific instance names from MRF transparency. The use of the exclusions feature will be disclosed in nodeinfo as a boolean value.