/etc/appdata/nextcloud1/config/www/nextcloud/config/config.php

<?php
$CONFIG = array (
  'datadirectory' => '/data',
  'instanceid' => 'ocws1d9utfc2',
  'passwordsalt' => <ANONYMIZED>,
  'secret' => <ANONYMIZED>,
  'trusteddomains' =>
  array (
    0 => '192.168.0.101:451',
    1 => 'nextcloud.<ANONYMIZED>.duckdns.org',
  ),
  'dbtype' => 'mysql',
  'version' => '28.0.1.1',
  'overwrite.cli.url' => 'https://nextcloud/.<ANONYMIZED>.duckdns.org',
  'overwritehost' => 'nextcloud.<ANONYMIZED>.duckdns.org',
  'overwriteprotocol' => 'https',
  'dbname' => 'nextcloud1',
  'dbhost' => 'nextclouddb1',
  'dbport' => '',
  'dbtableprefix' => 'oc',
  'mysql.utf8mb4' => true,
  'dbuser' => 'oc_nextcloud-adm',
  'dbpassword' => <ANONYMIZED>,
  'installed' => true,
  'memcache.local' => '\OC\Memcache\APCu',
  'filelocking.enabled' => true,
  'memcache.locking' => '\OC\Memcache\APCu',
  'upgrade.disable-web' => true,
);


stack nextcloud1:

version: "2.1"
services:
  nextcloud:
    image: ghcr.io/linuxserver/nextcloud:latest
    container_name: nextcloud1
    network_mode: swag_default
    environment:
      - PUID=1001
      - PGID=100
    volumes:
      - /etc/appdata/nextcloud1/config:/config
      - /srv/dev-disk-by-uuid-5d21dac9-d7ba-4831-9d29-e6d9d8de5b3b/appdata/nextcloud1/data:/data
      - /etc/localtime:/etc/localtime:ro
    depends_on:
      - mariadb
    ports:
      - 451:443
    restart: unless-stopped
  mariadb:
    image: ghcr.io/linuxserver/mariadb:latest
    container_name: nextclouddb1
    network_mode: swag_default
    environment:
      - PUID=1001
      - PGID=100
      - MYSQL_ROOT_PASSWORD=<ANONYMIZED>
    volumes:
      - /etc/appdata/nextclouddb1/config:/config
      - /etc/localtime:/etc/localtime:ro
    restart: unless-stopped
  redis:
    image: redis
    container_name: redis1
    network_mode: swag_default
    hostname: redis
    volumes:
      - /etc/appdata/redisDocker1:/data    
    restart: unless-stopped


stack swag:

version: "2.2"
services:
  swag:
    image: ghcr.io/linuxserver/swag
    container_name: swag
    cap_add:
      - NET_ADMIN
    environment:
      - PUID=1001
      - PGID=100
      - URL=<ANONYMIZED>.duckdns.org
      - DUCKDNSTOKEN=<ANONYMIZED>
      - SUBDOMAINS=wildcard
      - VALIDATION=duckdns
      - EMAIL=<ANONYMIZED>@gmail.com
      - DOCKER_MODS=linuxserver/mods:swag-dashboard
    volumes:
      - /etc/appdata/swag:/config
      - /etc/localtime:/etc/localtime:ro
    ports:
      - 444:443
      - 82:80
      - 81:81
    restart: unless-stopped