nbulaj

avram

A Crystal database wrapper for reading, writing, and migrating Postgres databases.

jsonapi-serializer

A fast JSON:API serializer for Ruby (fork of Netflix/fast_jsonapi)

SimpleAMS

Fast modern plain Ruby serializers using zero dependencies

devise_invitable

An invitation strategy for devise

activeinteractor

An implementation of the command pattern for Ruby with ActiveModel::Validations inspired by the interactor gem. Rich support for attributes, callbacks, and validations, and thread safe performance methods.

centrifugo

Scalable real-time messaging server in a language-agnostic way. Self-hosted alternative to Pubnub, Pusher, Ably. Set up once and forever.

scenic

Versioned database views for Rails

super_diff

A more helpful way to view differences between complex data structures in RSpec.

zonebie

Zonebie prevents bugs in code that deals with timezones by randomly assigning a zone on every run

undercover

undercover warns about methods, classes and blocks that were changed without tests, to help you easily find untested code and reduce the number of bugs. It does so by analysing data from git diffs, code structure and SimpleCov coverage reports

concurrency-patterns-crystal

dynein

Airbnb's Open-source Distributed Delayed Job Queueing System

jump

Jump helps you navigate faster by learning your habits. ✌️

odyssey

Scalable PostgreSQL connection pooler

todo_or_die

Write TODOs in code that ensure you actually do them

dear-github-2.0

📨 An open letter to GitHub from the maintainers of open source projects

pg_flame

A flamegraph generator for Postgres EXPLAIN ANALYZE output.

default_value_for

Provides a way to specify default values for ActiveRecord models

lru_redux

An efficient optionally thread safe LRU Cache

Ultra-Light-Fast-Generic-Face-Detector-1MB

💎1MB lightweight face detection model (1MB轻量级人脸检测模型)

evil-proxy

A ruby http/https proxy to do EVIL things. :imp:

pdf-forms.cr

Crystal Lang wrapper for PDFtk library

spec2.cr

Enhanced `spec` testing library for [Crystal](http://crystal-lang.org/).

job-iteration

Makes your background jobs interruptible and resumable by design.

lowkiq

Ordered background jobs processing

dry-configurable

A simple mixin to make Ruby classes configurable

piperator

Composable pipelines for Enumerators.

que

A Ruby job queue that uses PostgreSQL's advisory locks for speed and reliability.

You-Dont-Need-Momentjs

List of functions which you can use to replace moment.js + ESLint Plugin

dashboard

General-purpose web UI for Kubernetes clusters