* Pleroma.Web.Metadata.Providers.OpenGraph
* Pleroma.Web.Metadata.Providers.TwitterCard
* Pleroma.Web.Metadata.Providers.RelMe - add links from user bio with rel=me into the `<header>` as `<link rel=me>`
+ * Pleroma.Web.Metadata.Providers.Feed - add a link to a user's Atom feed into the `<header>` as `<link rel=alternate>`
* `unfurl_nsfw`: If set to `true` nsfw attachments will be shown in previews
## :rich_media