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A lesser known capability of Ruby's JSON.parse

Fighting the primitive obsession with Value objects

How to build a read model with Rails Event Store Projection

Use ActiveAdmin like a boss

Stop making excuses and write tests

Painless Rails upgrades

Ultimate guide to 3rd party calls from your Aggregate

Image Placeholder for your development environment

Make your JSON API tests clean with linter

Composable RSpec matchers

How to setup development work with RailsEventStore and mutant

Test critical paths in your app with ease thanks to Dependency Injection

One more step to DDD in a legacy rails app

The smart way to check health of a Rails app

How RSpec helped me with resolving random spec failures

A Simple feature toggle for a Rails app

Sitemaps with a bit of Metal

37 signals was not lying, you win by being remote