With gem audit_model you can log all changes to your models.

Auditor allows you to declaratively specify what CRUD operations should be audited and save the audit data to the database.

Track changes on Active Record models based on ActiveSupport::Callbacks and ActiveModel::Dirty

Auditron tracks who changed what on any ActiveRecord model — storing only the fields that changed, not full snapshots. Ships with a chainable query DSL, built-in log retention, a simple actor lambda, and works with PostgreSQL, MySQL, and SQLite. Zero hard dependencies beyond ActiveRecord.

Adds audit tables and triggers for postgres databases

Uses created_by_user_id and updated_by_user_id to store the changes made to a record. This is limited to storing the user who created the record and the last user to update the record.

Metadata enrichment for cultural heritage institutions.

Given a glider racing task , a set of scoring rules and IGC file/s, Augen can calculate points for glider flights, similar to SeeYou and OLC.

AuLoanCalculations library contains a couple of useful functions for Austrlian home loans.

A-Un

BBC News, Weather, Sport, and TV & Radio schedules right in your shell

A Viking Code School tool for simplifyig the pairing process.

when provided AU pincode it will return state.

AU PS Inferno Test Kit

Integrate Aurelia.io in your Rails project.

Query the Arch User Repository RPC interface

Its a really cool gem

AusPhones validates and identifies Australian phone numbers by region and type (mobile, land-line etc)

A beautiful and powerful interactive command line prompt with a robust API for getting and validating complex inputs.

Best-practices tooling for CloudFormation and AWS.