How connected state, retrieval, memory, and verification carry coding agents across complex, multi-step workflows. Kewin Wereszczyński and Lech Kalinowski discuss the structures that let agents plan, retrieve context, use tools, and keep working across longer tasks.

See how Apex, Callstack's React Native model, compares with frontier models on navigation, animations, async state, and performance-heavy UI work.

See how we built and deployed an Eve agent that tracks React and React Native repositories, filters commit noise, and publishes daily Slack updates.

AI can increase code output faster than teams can verify the real app. See why behavior review matters before merge.

Explore practical AI model training, from choosing a first project and preparing data to fine-tuning locally and evaluating synthetic data.

Learn how Eve helps structure AI agents with tools, skills, sandboxes, local models, HTTP channels, and evals.

A Live Stream with Kewin Wereszczyński and Piotr Miłkowski on AI training, datasets, tokenization, alignment, and why models infer patterns rather than understand meaning.

Join Callstack engineers Szymon Chmal and Kewin Wereszczyński on May 21 at 5 PM to explore Redraw, a new 2D graphics library for WebGPU.

Learn how Skill Gym helps test, validate, and improve AI agent skills with repeatable workflows, assertions, and model-aware feedback.

Explore practical tips for working with AI coding agents, managing context, using skills, reviewing code, and choosing the right models.

Join Callstack’s live stream on building a React Native app from the ground up using the TanStack toolbelt.

Learn why and how Zattoo moved from native TV apps to React Native, what changed for their team, and what it takes to scale across multiple platforms efficiently.