Build servers in livebook by exposing a server endpoint

[CrowdHailer]

The feature I am interested in is the same as endpoints in runkit. Documentation here https://runkit.com/docs/endpoint

Live book is an excellent replacement for postman. and I use my livebook as a client to test servers.
Having an endpoint feature would allow me to test the other side, i.e. I could test clients by having them hit the server that livebook is running.

I'm not sure if there is already a way to make this work. I've tried a few approaches but had difficulty starting applications and livebook. Currently I am using the mac native install of livebook on a machine where I don't have elixir installed

[josevalim]

Afaik, it should just work to start a server in Livebook. For example, I ran Plug just fine.