Delayed is a multi-threaded, SQL-driven ActiveJob backend used at Betterment to process millions of background jobs per day. It supports postgres, mysql, and sqlite, and is designed to be Reliable (with co-transactional job enqueues and guaranteed, at-least-once execution), Scalable (with an optimized pickup query and concurrent job execution), Resilient (with built-in retry mechanisms, exponential backoff, and failed job preservation), and Maintainable (with robust instrumentation, continuous monitoring, and priority-based alerting).

A very fast way to turn TeX math equations into beautifully rendered SVGs, to embed on the web. This library is mostly written in C and is a general purpose wrapper to GNOME's Lasem.

Ruby library for file system operations via Windows Remote Management

Gem to distribute the GOV.UK Tech Docs Template. See https://github.com/alphagov/tech-docs-gem for the project.

The Instana gem is a zero configuration tool that will automatically collect key metrics and distributed traces from your Ruby processes. Just install and go.

Ruby gem for running state-of-the-art language models locally. Access LLMs, embeddings, rerankers, and NER models directly from Ruby using Rust-powered Candle with Metal/CUDA acceleration.

Require this gem in your application to use Simply Business common rubocop rules.

A Blacklight-based environment to support discovery and delivery for archives and special collections

Astronomy and astrometry Ruby library for astronomical data and events.

Buildkite Builder is a tool that provides projects using Buildkite to have dynamic pipeline functionality.

FixtureKit provides lightning-fast test setup by caching database records. Define fixtures using any tool (FactoryBot, raw ActiveRecord, etc.), and FixtureKit caches the SQL to replay in subsequent test runs.

Treat fixtures like factories and factories like fixtures

MoreCoreExtensions are a set of core extensions beyond those provided by ActiveSupport.

YardJunk is structured logger/error validator plugin for YARD documentation gem.

This gem implements bcrypt_pbkdf (a variant of PBKDF2 with bcrypt-based PRF)

Run every test in a fork to avoid pollution and get clean output per test

Omnes is a Ruby library implementing the publish-subscribe pattern. This pattern allows senders of messages to be decoupled from their receivers. An Event Bus acts as a middleman where events are published while interested parties can subscribe to them.

You can prove anything with facts!

Gradually improve your code with RuboCop.

The simplest of ActiveRecord state machines. Intended to be lightweight and minimalistic.