Haven’t really seen this done before, but in case anyone wanted to know about my open source contributions, here are links to some pull requests and a short summary of each change.

Homebrew

Repo link: https://github.com/Homebrew/brew

Pull request #1: https://github.com/Homebrew/brew/pull/7440

Added a command line option to output outdated casks in JSON format

Pull request #2: https://github.com/Homebrew/brew/pull/7837

Ported some formula audit checks over to Rubocop, learned a bit about abstract syntax trees

Bundler

Repo link: https://github.com/rubygems/rubygems

Pull request #1: https://github.com/rubygems/rubygems/pull/3544

Improved user experience and documentation for configuring a test framework when running the bundle gem command

Pull request #2: https://github.com/rubygems/rubygems/pull/3667

Assisted in adding a new continuous integration option to bundle gem command

Puma

Repo link: https://github.com/puma/puma

Pull request #1: https://github.com/puma/puma/pull/2288

Configured settings for rack to depend on puma configuration