Tortoise is a Logo interpreter for ruby.

Micro instruction set vm & compiler for hobbyist computing

Generate an Ulam spiral sequence. PNG output available.

This gem generates UPI QR codes for payments. It can be used in e-commerce applications to generate QR codes for payments. The QR codes can be scanned by UPI apps to make payments. The gem uses the rqrcode gem to generate the QR codes.

Supports local development for Vae Platform (http://vaeplatform.com/)

Virtual name card for online video systems.

A gem to make visual test

VizReview SDK for Ruby. Easy integration of visual regression testing.

Vulkan bindings for Ruby

Vulture captures and compares screenshots of web pages at multiple resolutions, highlighting visual differences.

WatchDoge is RubyOnRails-friendly web frontend regression test tool