* `:activity_pub` - activity pub routes (except question activities). Defaults to `nil` (no expiration).
* `:activity_pub_question` - activity pub routes (question activities). Defaults to `30_000` (30 seconds).
-## :hackney_pools
+## HTTP client
+
+### :http
+
+* `proxy_url`: an upstream proxy to fetch posts and/or media with, (default: `nil`)
+* `send_user_agent`: should we include a user agent with HTTP requests? (default: `true`)
+* `user_agent`: what user agent should we use? (default: `:default`), must be string or `:default`
+* `adapter`: array of hackney options
+
+
+### :hackney_pools
Advanced. Tweaks Hackney (http client) connections pools.