 
       # Build a release for a specific environment
       mix release --env=staging
+
+      # Build a specific profile
+      mix release --profile=myapp:staging
 
       # Pass args to erlexec when running the release
       mix release --erl="-env TZ UTC"

          other ->
            Logger.error "Problem generating release tarball:\n    " <>
              "#{inspect other}"
        end
      {{:error, reason},_} when is_binary(reason) ->
        Logger.error "Failed to build release:\n    " <>
          reason
      {{:error, reason},_} ->
        Logger.error "Failed to build release:\n    " <>
          "#{inspect reason}"
    end
  end


      Keyword.get(overrides, :silent, false)  -> :silent
      :else -> verbosity
    end
    {rel, env} = case Keyword.get(overrides, :profile) do
      nil ->
        rel = Keyword.get(overrides, :name, :default)
        env = Keyword.get(overrides, :env, :default)
        {rel, env}
      profile ->
        case String.split(profile, ":", trim: true, parts: 2) do
          [rel, env] -> {rel, env}
          other ->
            Logger.error "invalid profile name `#{other}`, must be `name:env`"
            exit({:shutdown, 1})
        end
    end
    [verbosity: verbosity,
     selected_release: rel,
     selected_environment: env,
     dev_mode: Keyword.get(overrides, :dev),
     erl_opts: Keyword.get(overrides, :erl),
     no_tar:   Keyword.get(overrides, :no_tar, false),
