Hey!
I was able to run a dockerized TS3 Server on my Turris Omnia. Now a friend of mine asked, if that isn’t a security issue, if people were able to reach it from WAN. Well I honestly have no clue, it needs to forward a certain Port (UDP).
So excuse this very generic question, but I do expect generic answers as well 
(I have no static IP or dyndns-Domain)
greetings