Splitting a large Flutter app into fifty separate modules is supposed to help teams move faster, but it often creates a "domino effect" where one small change breaks the entire build. The core tension lies in the trade-off between team autonomy and system stability: we want features to be independent, yet we end up with a fragile web of dependencies where a refactor in a core package silently crashes downstream features and locks the release pipeline in version conflict hell. This roundtable is a troubleshooting space for architects and leads managing these massive, multi-package codebases. We will look beyond theoretical "clean architecture" diagrams to debate the messy operational realities of scale: How do you define strict boundaries that actually stop bugs from leaking? How do you manage cross-feature communication without creating a tangled mess of runtime events? Join us to discuss practical strategies for keeping a large-scale system shippable when dozens of teams are merging code at once.

Biometric authentication (Face ID, Touch ID, Windows Hello) is no longer a luxury; it's a security standard. With Supabase introducing native Passkey support via WebAuthn, this talk will show developers exactly how to wire up hardware-level, phishing-resistant security straight into their Flutter authentication flows. Key Highlights: * The anatomy of a WebAuthn ceremony: What the Dart client sends vs. what the secure enclave handles. * A live, practical walk-through of registering and authenticating via biometric Passkeys in Flutter. * Handling multi-device passkey recovery and fallbacks seamlessly in mobile UI.