Does anyone have Fresh Nextcloud Install on PHP-legacy with cache working?

All, I've spent a few days trying to get either APCu or Redis (or both) caching working with a fresh install of nextcloud on php-legacy. Nextcloud works fine and I can enable both caches per the wiki but adding anything to /etc/webapps/nextcloud/config/config.php as shown in the wiki immediately results in an "Internal server error" crash of nextcloud. A full explanation of all steps tried is in https://bbs.archlinux.org/viewtopic.php?id=288622 Does anyone have nextcloud 27.0.2 running on php-legacy with APCu or Redis (or both) enabled and working? Something is really wrong here. -- David C. Rankin, J.D.,P.E.