Install the Docker Engine by following the official guide: https://docs.docker.com/engine/install/
Install the Docker Compose by following the official guide: https://docs.docker.com/compose/install/
Run nextcloud-restore-application-data.sh to restore application data if needed.
Run nextcloud-restore-database.sh to restore database if needed.
Deploy nextcloud server with a Docker Compose using the command:
docker-compose -f nextcloud-traefik-letsencrypt-docker-compose.yml -p nextcloud up -d