I'm Jeroen from the Netherlands.
I have a DS918+ and use my ds for Drive, Mail plus, Calendar, Note Station, Moments, CardDav Server, Bitwarden.
I have installed Directory server for Windows Domain and Dns Server for thinks to try and and to learn how it works.
I also have a Let's encrypt wildcard certificate (sorry for the link to a other form)
I hope Synology will create a active sync server for mail, calendar and contacts to sync my android phone without other apps.
Also i hope there will be a new CardDav server with a nice interface just like calendar and all the drive apps will work together more like google.
I have no technical education or experience but google and Youtube are my friends.
Also i tried to learn from forms like this one.
Also my English is not vergy good so thats the reason i will not post that much but try to read as much as possible.