Docker solid-server on Synology How-to

I made a how-to create a docker solid-server on Synology NAS

It covers the following scope :

  • root free domain with freenom
  • wildcard Let’s encrypt certificate with sslforfree
  • build docker image (docker-hub or own build)
  • run docker with remanent data and use of a config.json file
  • use of Synology reverse proxy

Could you help me to improve it’s usability.
Hope it can help