Associations in pure Ruby, inspired by domain-driven design.

RemoteResource, a gem to use resources with REST services. A replacement for ActiveResource gem.

De (Dynamic Expression) module provides means to build and evaluate dynamic expression of arbitrary complecity and operands/operators nature

Deadfire - lightweight css preprocessor

Manage deadlines of your tasks and show timer for you

DeadMan is an implementation of a dead man's switch to monitor jobs. It's a simple tool that gives visibility when jobs fail to run.

Share config securely with your servers and organization using AWS S3.

Works with V2 of the DEAR Systems / DEAR Inventory API as seen at https://dearinventory.docs.apiary.io/

Base generic debug bar implementation.

🪲 Unobtrusive debug logging for Ruby. NO LITTERING. Automatically log selected methods and their arguments as they are called at runtime!

An MCP (Model Context Protocol) server that provides LLM agents with access to runtime context of executing Ruby processes. Connect to debug sessions, evaluate code, inspect objects, and control execution flow via MCP tools.

Use decent_exposure with decorators (e.g. Draper)

Simple and easy to use presentation layer for your Rails models.

日付機能拡張ライブラリ

Hash値拡張ライブラリ

If you have decision algorithm that can be easily expressed in a table, this gem can help

Lightweight decorators using plain old Ruby objects.

DeclarativeGrid is a gem for rendering grids described in simple DSL

Creates an object from a csv row according to yml-file with mapping rules

Apply grammatical cases to words.