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So you've got a cool app in Ruby, and you want to share it with your friends, but they don't love Ruby as much as you.

What do you do? Package it up along with the Ruby runtime and give it to them. Simple right? Maybe not so.

Thankfully smarter cookies than me, have tackled the problem, here is a map of the current state of play

Traveling-ruby
- revisted for Ruby 2.6.10 -> 3.3.0-preview1 and arm64 MacOS/Windows in this fork
  - PR proposed upstream here
Rb2exe revisted to use the updated traveling-ruby releases in this fork

1.) Download a Nerd Font

2.) Unzip and copy to ~/.fonts

3.) Run the command fc-cache -fv to manually rebuild the font cache

本文基本上这为两篇文章的翻译和整合 -- Scalable networking And Why are event-driven server so great

OPPC模型瓶颈

传统服务器模型如Apache为每一个请求生成一个子进程。当用户连接到服务器的一个子进程就产生，并处理连接。每个连接获得一个单独的线程和子进程。当用户请求数据返回时，子进程开始等待数据库操作返回。如果此时另一个用户也请求返回数据，这时就产生了阻塞。

这种模式在非常小的工作负荷是表现良好，当请求的数量变得太大是服务器会压力过于巨大。当Apache达到进程的最大数量，所有进程都变得缓慢。每个请求都有自己的线程，如果服务代码使用PHP编写时，每个进程所需要的内存量是相当大的[1]。

	require 'benchmark'
	require 'etc'

	Ractor.new { :warmup } if defined?(Ractor)

	def fibonacci(n)
	return n if (0..1).include? n

	fibonacci(n - 1) + fibonacci(n - 2)
	end

	Python Cheatsheet
	=================

	################################ Input & Output ###############################
	name = input('please enter your name: ')
	print('hello,', name)
	ageStr = input('please enter your age: ')
	age = int(ageStr)

	import jinja2
	from flask import Flask, render_template, request, redirect, url_for
	from flask.ext.sqlalchemy import SQLAlchemy

	from . import formatting
	from .config import get_config


	db = SQLAlchemy()

	## Found in: http://blog.firsthand.ca/2010/09/ruby-rdoc-example.html

	# * Style guide based on Rails documention
	module Namespace #:nodoc: don't document this

	# Generic Namespace exception class
	class NamespaceError < StandardError
	end

	# Raised when...

	git log --numstat --pretty="%H" 881579dd2569369f92104737d913629d4d6a6db5..branch_3.0.1 \| awk 'NF==3 {plus+=$1; minus+=$2} END {printf("+%d,-%d\n",plus,minus)}'
	git log --numstat --pretty="%H" 434868bb^..HEAD \| grep bks \| awk 'NF==3 {plus+=$1; minus+=$2} END {printf("+%d, -%d\n", plus, minus)}'