Hi David,
I think you already know everything you need to know.
Just attempt to do it and if you get into trouble the community will assist
you.
For a multi-user app you also need a backend and since Elm does not have an
official backend story, you will need to switch to another language.
I high
I have been working with Elm regularly since about 0.13, so I'm fairly
competent up to and including JSON, Cmd, Sub, JS interop and topics like
that. I have built some fairly detailed apps with those technologies
included. I focus on educational software.
What are the minimum extra skills I nee