default.xml

<?xml version="1.0" encoding="UTF-8"?>
<manifest>
  <remote name="github" fetch="https://github.com/" />
  <default revision="master" remote="github" />

  <project name="rails/rails.git" path="rails" />  
  <project name="rspec/rspec-rails.git" path="rspec-rails" />  
  <project name="rspec/rspec-core.git" path="rspec-core" />  
  <project name="rspec/rspec-expectations.git" path="rspec-expectations" />  
  <project name="rspec/rspec-support.git" path="rspec-support" />  
  <project name="rspec/rspec-mocks.git" path="rspec-mocks" />  

  <project name="dart-lang/sdk.git" path="dart-sdk" />  
  <project name="flutter/flutter.git" path="flutter" />
  <project name="flutter/engine.git" path="flutter-engine" />
  <project name="flutter/plugins.git" path="flutter-plugins" />

</manifest>