Do it like => validates :photos, attached: true, content_type: ['image/png', 'image/jpg', 'image/jpeg'], size: { less_than: 500.kilobytes }, limit: { min: 1, max: 3 }, aspect_ratio: :landscape, dim…

590+ usernames in this dictionary! A list of reserved usernames to prevent url collision with resource paths. This repository hosts the list in multiple formats like JSON, CSV, SQL and plain text. …

Examples illustrating usage of various New Relic Java APIs, SDKs, and libraries.

The easiest way to add custom confirmation dialog support to Rails apps.

Database-backed Active Job backend

Exploring Turbo features and extensions while building a music library app

Experimental Java 8 branch of JHotDraw

Framework agnostic scheduler to run recurring jobs.

A versatile Ruby web spidering library that can spider a site, multiple domains, certain links or infinitely. Spidr is designed to be fast and easy to use.

ldd as a tree

DXF parser for node/browser

A comprehensive guide to online resources about "Reactive" Ruby on Rails development

Source Generator based Embedded Typed Readonly In-Memory Document Database for .NET and Unity.

Dereference JSON reference

Crack password hashes without the fuss 🐈

HTTP checks & tests (private & public) monitoring - check the status of your URL

Job queue system to run job with Docker

Recurring events library for Ruby. Enumerable recurrence objects and convenient chainable interface.

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

Fast, indexed regexp search over large file trees

Build forms in React, without the tears 😭

A plugin that make it easy to build a search form

Test Automation Made Simple

macOS CLI tool for emulating mouse and keyboard events

Windows Implementation Library

🎮 A step-by-step guide to implementing SSAO, depth of field, lighting, normal mapping, and more for your 3D game.

Too buggy web application

BiTemporal Data Model for ActiveRecord

A Gameboy emulator for Emacs