Shopify Engineering·May 28, 2026·13 min read67Under the River (2026) - ShopifyWhat it took to ship our Slack-native agent River, lessons learned, and the substrate that runs beneath it. Co-authored by River.Read original on shopify.engineeringDiscussion around the webHacker News3 · 0 💬Score breakdownTechnical depth72Practical value90Originality85Writing quality96Source reputation86Recency0External engagement6On-site engagement0NayaRead shows a summary and links to the original article. The full article is hosted on shopify.engineering.