The active record pattern combines a domain record with the methods that persist and retrieve it from a database. This coupling can accelerate early delivery, but may make code harder to understand, change, and scale as the domain grows. section 12.5
Gigs platform expansion
A gigs platform used Ruby on Rails to reach product-market fit quickly. As it expanded from the Netherlands into Germany, coupling domain and persistence logic made regional domain changes, third-party integrations, and team growth more difficult. section 12.5


