SL#161 - Architecture at Scale (5) - Shopify: Ratchet the Boundaries Inside Your Monolith Instead of Splitting It

Shopify kept one Rails application with 2.8 million lines of Ruby and enforced domain boundaries with a static checker that only lets the number of violations go down. Here is how the ratchet works, what it costs, and how to size it for one, ten or a hundred teams.