BuddyPress.org

i Have this link now: https://domain.com/member/johndoe/activity/512/
but need this: https://domain.com/512/

how i can do that by some php snippet? pls help

Something like this? but its bad code i mean

function custom_activity_link($activity_id = false) {
    global $bp;
    if (!$activity_id) {
        $activity_id = bp_get_activity_id();
    }
    return home_url('/' . $activity_id . '/');
}

function change_buddypress_activity_permalink() {
    global $bp;
    $bp->activity->root_slug = 'activity';
    add_rewrite_rule('^([0-9]+)/?$', 'index.php?pagename=activity&p=$matches[1]', 'top');
}

add_action('bp_init', 'change_buddypress_activity_permalink', 2);
add_filter('bp_get_activity_thread_permalink', 'custom_activity_link', 10, 2);