You can add a step hook like a turnip for system test

Use TableSyntax to create and parse data tables directly in Ruby code. Extracted from tomykaira's [RSpec::Parameterized](https://rubygems.org/gems/rspec-parameterized).

sanitize tweet

Tweezer is a CLI to add, remove, and edit Gemfile dependencies in an automated way

Twitter api awesome handling with retry

Umwelt is a domain architecture development(knowledge management) tool, for handy prototyping domain specification with code structure.

Replace "-" with STDIN like unix option.

Predict Ruby code return values.

Translate YCP-like library calls (Ops.*, Builtins.*) to idiomatic Ruby