Rails6入门：如何启动空白的新Rails6应用程序

我想使用github / rails / rails上可用的最新Rails版本重建我的旧Rails应用程序之一

如何开始使用“ rails new ....”？

看来这可以像这样简单：

$ mkdir example
$ cd example
$ echo "source 'https://rubygems.org'" >> Gemfile
$ echo "gem 'rails', git: 'https://github.com/rails/rails.git'" >> Gemfile
$ bundle install
Fetching https://github.com/rails/rails.git
Fetching gem metadata from https://rubygems.org/.............
Resolving dependencies...
Using rake 12.3.1

$ bundle exec rails new . --dev --force
       exist
      create  README.md
      create  Rakefile
      create  .ruby-version
      create  config.ru
      create  .gitignore
       force  Gemfile
         run  git init from "."

$ bundle exec rails server -d
=> Booting Puma
=> Rails 6.0.0.alpha application starting in development
=> Run `rails server --help` for more startup options