A wrapper around BlackBook web services.

BlackBox turns any instantiated class into a singleton static class.

Various little helpers

This is an incredibly colorful highlighting formatter for structured log events. It is visually similar to Ruby's `Logger::Formatter`, but can display additional color-highlighted metadata on the same line or on subsequent lines.

If you need to map JSON to other JSON via some kind of mapping then this gem helps you to do that easily

noting.

Create blacklist rules for calendars with ease. Supports recurring rules for certain weekdays, date numbers, hour of day.

BlackCompany provides workhorses. But there is a limit to the number of them. So it's a thread pool :yum:

Sign token requests, publish, read history and presence, and manage queues on Blackevin. Standard library only: no runtime dependencies. Ruby 3.0 and up. Works in Rails, Sinatra, Hanami or plain Ruby.

A simple gem listing Black Friday Deals from various stores

black_hole is a cool name

A gem containing Blackjack libraries

The classic game of blackjack, commonly played in casinos

Simple CLI Blackjack

This is simple Blackjack

Generates HTML dynamically

Dynamic sitemap.xml for BLacklight

Blacklight discovery interface for an Internet Archive collection.

Oembed display for Blacklight

Tabular results view for Blacklight