To install Erlang Observer on a Mac, you can follow these steps:The first step is to download and install Erlang. You can visit the official Erlang website (https://www.erlang.org/downloads) and download the latest stable version for Mac.
Once Erlang is installed, open the terminal on your Mac.
In the terminal, execute the following command to access the Erlang shell:
erl
In the Erlang shell, execute the following command to start the Observer application:
observer:start().