Skeem is a Scheme language interpreter implemented in Ruby.

Spandx is a ruby API for interacting with the spdx.org software license catalogue. This gem includes a command line interface to scan a software project for the software licenses that are associated with each dependency in the project. Spandx also allows you to hook additional information for each dependency found. For instance, you can add plugin to Spandx to find and report vulnerabilities for the dependencies it found.

Sxn simplifies git worktree management with intelligent project rules and secure automation

Tobias is a tool to help you find the optimal work_mem for your queries.

gem for testing out ideas quickly

t-ruby compiles .trb files with type annotations to executable Ruby (.rb) and optional type signature files (.rbs)

Rack middleware that measures HTTP request queue duration from upstream headers and reports it to Yabeda as a histogram metric.