diff --git a/activitypub.php b/activitypub.php
index d61af85..1e0d44b 100644
--- a/activitypub.php
+++ b/activitypub.php
@@ -29,67 +29,66 @@ function init() {
 	\define( 'ACTIVITYPUB_PLUGIN_BASENAME', plugin_basename( __FILE__ ) );
 	\define( 'ACTIVITYPUB_PLUGIN_FILE', plugin_dir_path( __FILE__ ) . '/' . basename( __FILE__ ) );
 
-	require_once \dirname( __FILE__ ) . '/includes/table/followers-list.php';
-	require_once \dirname( __FILE__ ) . '/includes/class-signature.php';
-	require_once \dirname( __FILE__ ) . '/includes/class-webfinger.php';
-	require_once \dirname( __FILE__ ) . '/includes/peer/class-followers.php';
-	require_once \dirname( __FILE__ ) . '/includes/functions.php';
+	\define( 'ACTIVITYPUB_OBJECT', 'ACTIVITYPUB_OBJECT' );
 
-	require_once \dirname( __FILE__ ) . '/includes/model/class-activity.php';
-	require_once \dirname( __FILE__ ) . '/includes/model/class-post.php';
-
-	require_once \dirname( __FILE__ ) . '/includes/class-activity-dispatcher.php';
+	Migration::init();
 	Activity_Dispatcher::init();
-
-	require_once \dirname( __FILE__ ) . '/includes/class-activitypub.php';
 	Activitypub::init();
+	Collection\Followers::init();
 
 	// Configure the REST API route
-	require_once \dirname( __FILE__ ) . '/includes/rest/class-outbox.php';
 	Rest\Outbox::init();
-
-	require_once \dirname( __FILE__ ) . '/includes/rest/class-inbox.php';
 	Rest\Inbox::init();
-
-	require_once \dirname( __FILE__ ) . '/includes/rest/class-followers.php';
 	Rest\Followers::init();
-
-	require_once \dirname( __FILE__ ) . '/includes/rest/class-following.php';
 	Rest\Following::init();
-
-	require_once \dirname( __FILE__ ) . '/includes/rest/class-webfinger.php';
 	Rest\Webfinger::init();
 
-	// load NodeInfo endpoints only if blog is public
-	if ( true === (bool) \get_option( 'blog_public', 1 ) ) {
-		require_once \dirname( __FILE__ ) . '/includes/rest/class-nodeinfo.php';
-		Rest\NodeInfo::init();
-	}
-
-	require_once \dirname( __FILE__ ) . '/includes/class-admin.php';
 	Admin::init();
-
-	require_once \dirname( __FILE__ ) . '/includes/class-hashtag.php';
 	Hashtag::init();
-
-	require_once \dirname( __FILE__ ) . '/includes/class-shortcodes.php';
 	Shortcodes::init();
-
-	require_once \dirname( __FILE__ ) . '/includes/class-mention.php';
 	Mention::init();
-
-	require_once \dirname( __FILE__ ) . '/includes/class-debug.php';
 	Debug::init();
-
-	require_once \dirname( __FILE__ ) . '/includes/class-health-check.php';
 	Health_Check::init();
-
-	if ( \WP_DEBUG ) {
-		require_once \dirname( __FILE__ ) . '/includes/debug.php';
-	}
 }
 \add_action( 'plugins_loaded', '\Activitypub\init' );
 
+spl_autoload_register(
+	function ( $class ) {
+		$base_dir = trailingslashit( __DIR__ ) . 'includes' . DIRECTORY_SEPARATOR;
+		$base     = 'activitypub';
+
+		$class = strtolower( $class );
+
+		if ( strncmp( $class, $base, strlen( $base ) ) === 0 ) {
+			$class = str_replace( 'activitypub\\', '', $class );
+
+			if ( strpos( $class, '\\' ) ) {
+				list( $sub_dir, $class ) = explode( '\\', $class );
+				$base_dir = $base_dir . $sub_dir . DIRECTORY_SEPARATOR;
+			}
+
+			$filename = 'class-' . str_replace( '_', '-', $class );
+			$file     = $base_dir . $filename . '.php';
+
+			if ( file_exists( $file ) ) {
+				require_once $file;
+			}
+		}
+	}
+);
+
+require_once \dirname( __FILE__ ) . '/includes/functions.php';
+
+// load NodeInfo endpoints only if blog is public
+if ( true === (bool) \get_option( 'blog_public', 1 ) ) {
+	require_once \dirname( __FILE__ ) . '/includes/rest/class-nodeinfo.php';
+	Rest\NodeInfo::init();
+}
+
+if ( \WP_DEBUG ) {
+	require_once \dirname( __FILE__ ) . '/includes/debug.php';
+}
+
 /**
  * Add plugin settings link
  */
@@ -102,34 +101,32 @@ function plugin_settings_link( $actions ) {
 
 	return \array_merge( $settings_link, $actions );
 }
-\add_filter( 'plugin_action_links_' . plugin_basename( __FILE__ ), '\Activitypub\plugin_settings_link' );
+\add_filter( 'plugin_action_links_' . plugin_basename( __FILE__ ), __NAMESPACE__ . '\plugin_settings_link' );
 
-/**
- * Add rewrite rules
- */
-function add_rewrite_rules() {
-	if ( ! \class_exists( 'Webfinger' ) ) {
-		\add_rewrite_rule( '^.well-known/webfinger', 'index.php?rest_route=/activitypub/1.0/webfinger', 'top' );
-	}
+\register_activation_hook(
+	__FILE__,
+	array(
+		__NAMESPACE__ . '\Activitypub',
+		'activate',
+	)
+);
 
-	if ( ! \class_exists( 'Nodeinfo' ) || ! (bool) \get_option( 'blog_public', 1 ) ) {
-		\add_rewrite_rule( '^.well-known/nodeinfo', 'index.php?rest_route=/activitypub/1.0/nodeinfo/discovery', 'top' );
-		\add_rewrite_rule( '^.well-known/x-nodeinfo2', 'index.php?rest_route=/activitypub/1.0/nodeinfo2', 'top' );
-	}
+\register_deactivation_hook(
+	__FILE__,
+	array(
+		__NAMESPACE__ . '\Activitypub',
+		'deactivate',
+	)
+);
 
-	\add_rewrite_endpoint( 'activitypub', EP_AUTHORS | EP_PERMALINK | EP_PAGES );
-}
-\add_action( 'init', '\Activitypub\add_rewrite_rules', 1 );
+register_uninstall_hook(
+	__FILE__,
+	array(
+		__NAMESPACE__ . '\Activitypub',
+		'uninstall',
+	)
+);
 
-/**
- * Flush rewrite rules;
- */
-function flush_rewrite_rules() {
-	\Activitypub\add_rewrite_rules();
-	\flush_rewrite_rules();
-}
-\register_activation_hook( __FILE__, '\Activitypub\flush_rewrite_rules' );
-\register_deactivation_hook( __FILE__, '\flush_rewrite_rules' );
 
 /**
  * Only load code that needs BuddyPress to run once BP is loaded and initialized.
diff --git a/includes/class-activitypub.php b/includes/class-activitypub.php
index 16a1f22..fd5aa1e 100644
--- a/includes/class-activitypub.php
+++ b/includes/class-activitypub.php
@@ -25,6 +25,40 @@ class Activitypub {
 		\add_action( 'transition_post_status', array( self::class, 'schedule_post_activity' ), 33, 3 );
 		\add_action( 'wp_trash_post', array( self::class, 'trash_post' ), 1 );
 		\add_action( 'untrash_post', array( self::class, 'untrash_post' ), 1 );
+
+		\add_action( 'init', array( self::class, 'add_rewrite_rules' ) );
+	}
+
+	/**
+	 * Activation Hook
+	 *
+	 * @return void
+	 */
+	public static function activate() {
+		self::flush_rewrite_rules();
+
+		if ( ! \wp_next_scheduled( 'activitypub_update_followers' ) ) {
+			\wp_schedule_event( time(), 'hourly', 'activitypub_update_followers' );
+		}
+	}
+
+	/**
+	 * Deactivation Hook
+	 *
+	 * @return void
+	 */
+	public static function deactivate() {
+		self::flush_rewrite_rules();
+
+		wp_unschedule_hook( 'activitypub_update_followers' );
+	}
+
+	/**
+	 * Uninstall Hook
+	 *
+	 * @return void
+	 */
+	public static function uninstall() {
 	}
 
 	/**
@@ -204,4 +238,28 @@ class Activitypub {
 	public static function untrash_post( $post_id ) {
 		\delete_post_meta( $post_id, 'activitypub_canonical_url' );
 	}
+
+	/**
+	 * Add rewrite rules
+	 */
+	public static function add_rewrite_rules() {
+		if ( ! \class_exists( 'Webfinger' ) ) {
+			\add_rewrite_rule( '^.well-known/webfinger', 'index.php?rest_route=/activitypub/1.0/webfinger', 'top' );
+		}
+
+		if ( ! \class_exists( 'Nodeinfo' ) || (bool) \get_option( 'blog_public', 1 ) ) {
+			\add_rewrite_rule( '^.well-known/nodeinfo', 'index.php?rest_route=/activitypub/1.0/nodeinfo/discovery', 'top' );
+			\add_rewrite_rule( '^.well-known/x-nodeinfo2', 'index.php?rest_route=/activitypub/1.0/nodeinfo2', 'top' );
+		}
+
+		\add_rewrite_endpoint( 'activitypub', EP_AUTHORS | EP_PERMALINK | EP_PAGES );
+	}
+
+	/**
+	 * Flush rewrite rules;
+	 */
+	public static function flush_rewrite_rules() {
+		self::add_rewrite_rules();
+		\flush_rewrite_rules();
+	}
 }