Nextcloud file sync and sharing. 4 containers (app, db, redis, cron). Data on NAS mount at /mnt/nastronaut/users/.nextcloud-data. Paperless consume bind mount at /mnt/paperless_inbox. Paperless archive mounted as Nextcloud Documents folder. LAN HTTP via caddy-lan (nextcloud-prod.internal). LAN HTTPS via caddy-lan (nextcloud.unbiasedrhino.cyou, Cloudflare DNS-01 cert). External HTTPS via VPS Caddy. Migrated from forge to ironclad 2026-03-23. Path: ~/prod/nextcloud/