No, not at the moment. The handle_post function of the plugin tests the post type. If it isn’t a ‘post’ then it is skipped. WP uses numerous other post types which should not be sent to Bluesky, like menus.
If you wanted to modify the plugin to allow a custom post type, look at lines 70-75. But your changes will be written over when the plugin is updated.
Custom post types are commonly used in WP. Perhaps this is a topic for a future upgrade. It shouldn’t be difficult to add a setting to allow the plugin to handle a specific post type. The list of registered post types can be found using get_post_types(). There could be a form with a check box for each type.
