erldash connects to an Erlang node using the dynamic node name feature
to collect metrics. It only depends on erlang and erpc modules. So you can
use this dashboard out of the box without installing any additional
packages to the target Erlang node:

  erldash run [-c $COOKIE] name@$IP

Metrics are collected using erlang:statistics/1, erlang:memory/0 and
erlang:system_info/1 functions.