For Prosody to connect to the debugger, call the API `http://your_instance.tld/plugins/livechat/router/api/restart_prosody?debugger=true`.This call does not need any authentication.It can be done from a command line, for example with `curl http://your_instance.tld/plugins/livechat/router/api/restart_prosody?debugger=true`.You can even configure your debug server to launch this request automatically.
There is a tutorial, in french, on the [Peertube forum](https://framacolibri.org/t/tutoriel-creer-un-environnement-de-developpement-de-plugin-peertube-rapidement-en-utilisant-docker-et-qui-permet-de-tester-la-federation/17631) that explains how to quickly build a dev env using Docker.