My pryrc file

.pryrc

Pry.config.editor = "subl"

Pry.hooks.add_hook(:before_eval, "runtime_start") do |output, pry|
  pry.instance_variable_set(:"@x_runtime_start", Time.now)
end

Pry.hooks.add_hook(:after_eval, "runtime_end") do |output, pry|
  pry.instance_variable_set(:"@x_runtime_end", Time.now)
end

Pry.config.print = proc do |output, value, _pry_|
  rts = _pry_.instance_variable_get(:"@x_runtime_start")
  rte = _pry_.instance_variable_get(:"@x_runtime_end")
  _pry_.instance_variable_set(:"@x_runtime_start", false)
  _pry_.instance_variable_set(:"@x_runtime_end", false)
  if rts && rte
    rt = (rte - rts)
    rtms = (rt * 1000.0).round
    rtus = (rt * 1000.0 * 1000.0).round
    rtf = rtms.zero? ? "#{rtus}µs" : "#{rtms}ms"
  end
  _pry_.pager.open do |pager|
    pager.print "\e[30m#{rtf}\e[0m #{_pry_.config.output_prefix}"
    Pry::ColorPrinter.pp(value, pager, output.width)
  end
end