Next.js is a great framework - until you want to deploy it somewhere that isn't Vercel. vinext is a Vite plugin from Cloudflare that reimplements the Next.js API surface from scratch, so your existing app runs everywhere with a single command. In this talk, we'll look at why this exists, how Cloudflare built it in a week using AI, and how close to "drop-in replacement" it actually gets.

AI features on the web fail in ways console.error never sees: bad tool calls, runaway agent loops, slow model steps, and streams that die mid-flight. This talk walks through building agent experiences on the web and using Sentry agent tracing to observe full agent workflows in production. Then we bring in Seer, Sentry's own AI debugging agent, to turn that telemetry into root causes and fix guidance.

This talk explores the architecture and implementation of OAuth-based authentication for remote-hosted MCP servers. I'll walk through the specific challenges I encountered while building an MCP server at Tigris — including managing dynamic client registrations, token lifecycle management and scope handling across distributed environments.

I'll also cover UX choices like reducing friction in the auth flow, handling token refresh gracefully, and managing session state.

In State of Brownfield in React Native, we’ll look at how engineering teams can introduce React Native and JS into mature, native-only applications. The session walks through practical strategies for phased adoption, cutting-edge tooling, and effective architectural choices. We’ll dig into the real challenges that come with hybrid integration and wrap up with advanced areas like brownfield state and data exchange.

The talk examines how teams can bring React Native and JavaScript into an existing native-only tech stack. We’ll look at practical approaches for gradual adoption—ensuring that iOS and Android apps can continue to receive features and fixes while part of the development workload shifts toward React Native. The session highlights state-of-the-art tooling, integration strategies, and architectural patterns that make brownfield adoption more seamless, while also addressing the real-world challenges that commonly arise in hybrid environments. We’ll conclude by exploring advanced topics such as preloading, passing initial props from native to JS, and efficient bi-directional communication between native code and JavaScript

Agentic engineering speeds up development, but fast-paced changes make edge cases—like onboarding flows and error handling—easy to miss.
Using Metro’s custom resolver, we can now launch directly into specific test environments, like targeted edge cases or simulated errors, without cluttering our production code with feature flags.

When TypeScript gets too slow, native modules can help. We’ll look at the available options and see why Nitro Modules are especially worth trying.