There is a lot of care in Elixir Logger (https://hexdocs.pm/logger/Logger.html https://hexdocs.pm/logger/Logger.html) with regard to this. For instance, "argum

There is a lot of care in Elixir Logger (https://hexdocs.pm/logger/Logger.html https://hexdocs.pm/logger/Logger.html) with regard to this. For instance, "arguments given to info/2 will only be evaluated if a message is logged". You can also trim out (at compile time, like you did with the build step) all the logging commands below the selected level, with the ":compile_time_purge_matching" option.