Instead of making ActiveRecord calls to change a counter field, write them to capacitor. They'll get summarized in a redis hash, with a separate process batch-retrieving and writing to ActiveRecord. Being single-threaded, the writing process avoids row lock collisions, and absorbs traffic spike...

Catena lets you write and compose background tasks in a flexible way to model business processes

Allow services to check in

This is the Cinch Last.fm plugin adding 'recently played' functionality.

rails cache gem to fragment cache with smart cache key management

Manage a collection of worker processes

Fast and furious tracking system using Redis hash operations

Creeper is an evented version of Stalker

DashCreator is a client-side dashboard creator gem. It can be used with any database to create filters, charts and dashboards of your own with a graphical interface.

DeepL API wrapper for Ruby which helps to translate only changes between revisions of long texts.

Simple drb-based queue/worker system

Store Ellen's memory in Redis.

Ruby Enum storage.

Extface allows use of Cash Registers, Fiscal and POS printers without physical connection between the device, application server and the end user. Can also be used for remotely reading CDR logs from PBX systems and actually supports data exchange with all low-speed devices having serial, parallel...

fake go up with actvie record

Faye extension for tracking user subscriptions, i.e. can be used for checking if a user is online.

Mirror, mirror on the wall ...

Resque output plugin for fluent event collector. Has extra features like buffering and setting a worker class in the config.

Resque enqueue plugin

Resque-ex enqueue plugin