Docker
Ubuntu 20.04/18.04/16.04 Multi User Remote Desktop Server
https://hub.docker.com/r/danielguerra/ubuntu-xrdp/
Add Docker Capabilities to TrueNAS CORE
https://getmethegeek.com/blog/2021-01-07-add-docker-capabilities-to-truenas-core/
Portainer as alternative to Synology Docker GUI
Upgrading Portainer: