IntelliJ IDEA is the supported dev environment.
Install the IntelliJ Community Edition if you haven't already, from here.
Start IntelliJ and Import erlyberly as a project. It should be a Maven project using Java 8. Click Next through all the other options.
To create a Run Configuration that starts erlyberly, execute the following in the shell from erlyberly repo directory.
mkdir .idea/runConfigurations && cp Erlyberly.xml .idea/runConfigurations/
IntelliJ must be restarted to pick up the new run configuration.
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