You are doing me a big favor by clicking the Like button :-)
Because not everyone has a fixed IP number and you still want connect your own network, you need a DDNS service and a client.
I use https://github.com/ayushsharma82/EasyDDNS on a WEMOS D1 v3.0.0 as a client.
This Wemos uses very low power and update the DDNS every 10 seconds.
I have been using the free Duckdns service for years and I am very satisfied with it.
What I still missed was a case around the wemos.
The author marked this model as their own original creation.