iiinova — where your digital self keeps evolving

Callstack @callstack.com · 24/09/2026

An agentic workflow needs a recovery path. We introduced an invalid commit reference, routed the review feedback back to the Developer agent, verified the correction, and then sent the task to human approval. See the case study 👉 clstk.com/4hn7Lgd

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Callstack @callstack.com · 22/09/2026

Sharing a lot of code does not automatically give you one mobile product. Share the layers whose behavior should stay consistent. Keep platform differences explicit, with owners and tests. React Native at Scale 2026 explains how experienced teams make that call: clstk.com/4xY0cmB

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Callstack @callstack.com · 15/09/2026

5x to 10x WebGPU speedups. Hugging Face is testing a browser AI inference engine using agent-written, device-optimized WebGPU kernels. Nico Martin joins Mike Grabowski to discuss the early work and what it could mean for Transformers.js. Watch React Universe On Air 🎙️ clstk.com/4xZLZpU

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Callstack @callstack.com · 11/09/2026

A React Native migration for a crypto trading platform gave coding agents project-specific skills, access to simulators and devices, and React DevTools context. This made engineering standards reusable across teams. Read the case study to learn more at clstk.com/4xgK6Uo

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Callstack @callstack.com · 08/09/2026

We routed verifiable tasks to autonomous agents and kept visual judgment in an engineer-guided Codex loop. The case study covers the workflow behind an under-one-month launch and up to 3x estimated acceleration: clstk.com/4gFcWJj

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Callstack @callstack.com · 07/09/2026

Which AI tasks belong in the browser? @nico.dev from Hugging Face covers Transformers.js, ONNX Runtime, WebGPU, model caching, fallbacks, and browser agents. See which tasks are ready for on-device use and where the limits are. Watch & read shownotes at clstk.com/4qXHf1f

clstk.com

Running AI in the Browser With Transformers.js

Nico Martin explains how Transformers.js uses WebGPU and ONNX to run AI in the browser, plus the limits of local models and on-device agents.

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Callstack @callstack.com · 04/09/2026

Background removal and transcription run in the browser. Nico Martin from Huggin Face joins @grabbou.com to cover Transformers.js today, device limits, offline use, and which parts of an agent workflow can already run locally. 📺 YouTube premiere: youtu.be/elAVSra9KCY 📆 Sept 7 at 2PM CEST

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Callstack @callstack.com · 03/09/2026

Ruben Casas from Postman has a few words for you ahead of Agent Conf. In his talk, he’ll explore the emerging spectrum of generative UI, from static templates & configuration-driven interfaces to interfaces authored on the fly by LLMs. Get your ticket: www.agent.sh/tickets

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Callstack @callstack.com · 03/09/2026

React Native can give teams one shared codebase. Still, it does not decide who owns upgrades, releases, or the shared setup. We combined 10 years of experience with perspectives from 12 organizations in React Native at Scale 2026: clstk.com/4r1ELPt

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Callstack @callstack.com · 02/09/2026

We wrote up how we embedded React Native inside a .NET MAUI app using a brownfield setup. The article covers packaging, lifecycle wiring, MAUI Shell navigation, and shared state across both runtimes. Read the article: clstk.com/4zNHvny

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Callstack @callstack.com · 01/09/2026

Zuzanna Skoczylas from Sierra has a few words for you ahead of Agent Conf 2026. In her talk, she’ll share three lessons from building and shipping production agents: context engineering, the agent loop, and benchmarking model reliability. Tickets: www.agent.sh/tickets

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Callstack @callstack.com · 31/08/2026

Registering a native module twice can crash a React Native app. Our Super App Showcase prevents that by keeping native code in the Host Shell. Mini Apps stay JavaScript-only and load when needed with Re.Pack and Module Federation. Read more about it: clstk.com/4gsofo3

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Callstack @callstack.com · 27/08/2026

One request now starts the automated React Native Evals run. Airflow runs each solver/judge pair separately. MLflow keeps the run record and files together. Human review still decides what gets published. Here’s how we built it 👉 clstk.com/4wMcgqh

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Callstack @callstack.com · 27/08/2026

Lech Kalinowski from Callstack is joining Agent Conf in Warsaw as a speaker. Together with Artur Morys-Magiera (@artus9033.bsky.social), he’ll present a case study of Apex and look at the impact of quantization on LLM performance. Get your ticket: www.agent.sh/tickets

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Callstack @callstack.com · 24/08/2026

Native iOS & Android engineers are needed in React Native apps.Most code can live in TypeScript, but teams need to dive into platform capabilities for better UX. The focus changes: native engineers solve complex platform challenges, while RN devs stay productive shipping features for 2 platforms.

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Callstack @callstack.com · 21/08/2026

Jakub Kuzimski from Allegro will speak at AgentConf 2026 on Stop Making LLMs Deterministic. Building a Spec-Driven Software Factory at Allegro. Join us in Warsaw on September 17-18: www.agent.sh/agenda

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Callstack @callstack.com · 21/08/2026

We keep migration knowledge in six versioned files: 1. `MIGRATION.md`, 2. `SCREENS.tsv`, 3. `STATE_AND_STORAGE.tsv`, 4. `DEPENDENCIES.tsv`, 5. `EVENTS.tsv`, 6. `PARITY_CHECKS.md`. Teams review them in spreadsheets and Git. Agents use them for each task. Download the guide 👉 clstk.com/4quxRSF

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Callstack @callstack.com · 19/08/2026

Last night in Cambridge, around 80 people joined us for Agentic AI in the Wild with Qodo Dev Community, ReactVision, and Codex Community Boston. Talks covered code quality, local validation, spatial computing, and large codebase migration. Thanks to everyone who came!

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Callstack @callstack.com · 19/08/2026

Give agents two migration tasks: 1. Preserve native behavior 2. Refactor into idiomatic React Native A different agent reviews between passes. The team compares both apps on devices and repeats the checks after refactoring. Download the guide 👉 clstk.com/3So6LzM

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Callstack @callstack.com · 19/08/2026

Why do camera features break even on devices that technically support them? Marc Rousavy breaks down a problem every team runs into once camera work gets more advanced: HDR, 5K & 120 FPS may all be supported, but that does not mean those settings will work together. Full episode: clstk.com/4ibuX2Y

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Callstack @callstack.com · 18/08/2026

Meet George Nikolaropoulos from Natech Banking Solutions at AgentConf 2026. He’ll share how agentic engineering helped Natech deliver Snappi, Greece’s first ECB-licensed neobank, in less than a year, and what that meant for software delivery, product scale, and day-to-day operations.

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Callstack @callstack.com · 17/08/2026

David Mokos from Expo has a few words for you ahead of Agent Conf 2026. He’ll talk about what changes when AI agents become the primary users of developer tools, from interfaces and documentation to evaluation and feedback. Find David’s talk and plan your two days in Warsaw: www.agent.sh/agenda

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Callstack @callstack.com · 13/08/2026

Meet Susmita Singh from Google at AgentConf 2026. She’ll show how to implement cryptographic memory signing, context-aware access controls, and adversarial memory sanitization to build agents that remember safely. Get a ticket: www.agent.sh/tickets

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Callstack @callstack.com · 12/08/2026

Come to Warsaw a day early for a free hands-on workshop with Amazon’s Giovanni Laquidara. Build a Software (re)Factory that works across Claude Code, Cursor, Codex, and GitHub Copilot. 📆 September 16, 2026 🕙 10:00–14:30 📍 Crowne Plaza Warsaw – The HUB Sign up 👉 www.agent.sh/workshop

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Callstack @callstack.com · 12/08/2026

Brownfield keeps the current app live but adds a boundary between two runtimes. Greenfield moves the risk to cutover. A third option starts greenfield, tests representative flows, and keeps a fallback into the native hosts. Download the guide: clstk.com/3TSBOEp

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Callstack @callstack.com · 11/08/2026

Anisha Malde is a React Native Developer Advocate at Amazon. At Agent Conf, she and Kourtney Meiss will use a football team to explain how agents coordinate, verify outputs, and catch failures. Tickets: www.agent.sh/tickets

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Callstack @callstack.com · 10/08/2026

Kewin Wereszczyński shares a view we probably all have at this point: nobody needs more vague AI talk. What we do need is a clearer way to judge where these tools are genuinely useful. Join us here on August 13 at 5 PM👇 youtube.com/live/eiGcqvj...

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Callstack @callstack.com · 10/08/2026

A QA agent should return evidence that a reviewer can inspect, not only a pass or fail. This clip from our last webinar covers five rules for keeping those runs reliable. For a full walk-through of the PR-to-device workflow and a live behavior-review demo, watch webinar recording: clstk.com/45cNynL

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Callstack @callstack.com · 06/08/2026

Kourtney Meiss works on developer experience across Alexa, apps, and games at Amazon. At Agent Conf, she and Anisha Malde will show how to coordinate agents, verify their work, and keep people involved. Tickets: www.agent.sh/tickets

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Callstack @callstack.com · 06/08/2026

People are tired of AI talk for a reason. Too much of it is vague and disconnected from real work. We’re sharpening our livestreams to focus on AI from a developer’s point of view: real workflows, where it saves time, where it adds risk, and where teams still need to slow down and think.👇

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Callstack @callstack.com · 05/08/2026

Anjaneya Sastry Kappagantu is a Solution Architect at AT&T working on local AI environments and MLX. At Agent Conf, he’ll explore three ways models can adapt during inference, and how to decide when feedback should trigger an update. Tickets: www.agent.sh/tickets

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Callstack @callstack.com · 05/08/2026

A green diff can still ship a broken mobile app. When agents write more of the code, review needs a third layer: behavior proof from the running app. @thymikee.bsky.social breaks down how you can build your own QA agent with device control & cloud execution fit into that workflow ➡️ clstk.com/4h8MU1J

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Callstack @callstack.com · 05/08/2026

We’re proud to welcome Amazon as the Platinum Sponsor of Agent Conf 2026. The Amazon team will also join the program, with Anisha Malde and Kourtney Meiss speaking about harness engineering and multi-agent orchestration. Excited to have you on board! 👉 www.agent.sh

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Callstack @callstack.com · 04/08/2026

Assess the product before choosing a migration path. Review enough code, delivery, and live app behavior to catch a poor fit before it becomes cutover risk, rework, or years of maintaining two runtimes. Leave with trial flows and go/no-go criteria: 👉 clstk.com/4wHuR7M

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Callstack @callstack.com · 04/08/2026

Building camera features in React Native? This episode of React Universe On Air with @mrousavy.com covers what changed in VisionCamera v5: Nitro Modules, the constraints API, output objects, migration from v4, and the testing work behind the release. Get show notes and resources at clstk.com/45BOQZn

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Callstack @callstack.com · 04/08/2026

Carl Ross is a Member of Technical Staff at OpenAI, working with agentic software factories across the software development lifecycle. Now he’s joining Agent Conf, where he’ll cover what happens when token budget is entirely removed as a constraint. Get your ticket: agent.sh/tickets

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Callstack @callstack.com · 03/08/2026

Susmita Singh is a Senior Software Engineer at Google who led AI infrastructure work for the Google Store. Now she's joining Agent Conf in Warsaw as a Speaker. In her talk she’ll cover how to build grounded and reliable AI agents at scale. Tickets: www.agent.sh/tickets

agent.sh

Agent Conf 2026 | Warsaw | Shaping the Future of Agentic Development

Join 500+ engineers in Warsaw Sept 17-18 2026 for Agent Conf. Learn agentic development, orchestration, and AI-driven workflows. Hosted by Callstack.

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Callstack @callstack.com · 03/08/2026

Brownfield keeps the current app as the production host. Greenfield builds the replacement alongside it. A checkpoint path lets teams test greenfield before committing. The choice depends on where the migration risk sits in the product. Read the article: clstk.com/4fAxKkI

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Callstack @callstack.com · 31/07/2026

An agent took 3:18 to complete a 9-step Android QA flow. The same recorded route replayed in 8.8s, including launch, with zero model calls. We ran it 20 times to be sure. Are agents wasting that much time? @thymikee.bsky.social explains the tradeoffs ➡️ clstk.com/4c6MkOr

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Callstack @callstack.com · 30/07/2026

A React Native migration changes how teams build, release, and measure mobile work. Our new ebook covers brownfield, greenfield, a greenfield-first option with a tested fallback, the two-pass AI workflow, release control, and ROI. Download the guide: clstk.com/4pKVK7Y

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Callstack @callstack.com · 29/07/2026

Five years of VisionCamera work led to this release. In the upcoming podcast, Mike talks with Marc Rousavy about what changed under the hood, how Nitro shaped v5, and why this release goes far beyond a routine upgrade. Premiering on August 4 ➡️ youtu.be/xI3egb3_ihI

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Callstack @callstack.com · 27/07/2026

React Native updates arrive through releases, RFCs, repositories, and the wider ecosystem. Join Kewin and Hur live as they build a news agent with Eve: configure a custom model, send updates to Slack, deploy to Vercel, and inspect its activity ➡️ clstk.com/4yHt9o3

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Callstack @callstack.com · 27/07/2026

Bundle size is one of the topics teams keep postponing until users are hit with “large size” warning when downloading your app and stop the process. Our guide breaks down what is worth checking: dependency cost, barrel exports, tree shaking, platform shaking & bundling choices that affect startup.

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Callstack @callstack.com · 23/07/2026

AI can produce a plausible PR quickly, but the merge decision still depends on how the changed app behaves on a real device. Our webinar covers behavior review: bounded QA agents, runtime evidence, and a practical first workflow. Link to recording ➡️ clstk.com/4vDO6xv

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Callstack @callstack.com · 22/07/2026

What does AI look like when it leaves chat window? Lech built Vault, a handheld terminal for self-hosted agents and local models. Its OLED tracks live task activity & e-paper holds the finished answer. Read full story ➡️ clstk.com/4vLuKXt OpenClaw, DGX Spark, TensorRT-LLM. Two screens, one task.

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Callstack @callstack.com · 21/07/2026

See the pattern applied to a multi-feature app in the Super App Showcase: a fintech host with federated Trading, Wallet, and Auth mini apps, shared native dependencies, and a shared runtime data service ➡️ github.com/callstack/su...

github.com

GitHub - callstack/super-app-showcase: Example of using micro-frontends in a React Native mobile app with Re.Pack to create a Super App.

Example of using micro-frontends in a React Native mobile app with Re.Pack to create a Super App. - callstack/super-app-showcase

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Callstack @callstack.com · 21/07/2026

Our new guide builds the smallest working React Native super-app setup with Re.Pack 5 and Module Federation. You will configure a host and mini app, expose a remote module, load it with React.lazy, and add loading and error states around the remote screen ➡️ clstk.com/3RQj9IF

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