LeanCode 💙

We're a custom software studio that delivers end-to-end solutions for various industries. Experts in #Flutter #DotNet #React and a part of #FlutterCommunity.

[LeanCode 💙 @LeanCodePl]

From "What is it?" to "How do I use it?" - everything about Marionette MCP.

Maybe you've heard about Marionette MCP but haven't had a chance to try it yet. Or looking for a resource to share with your team, we've brought all of those answers together - from how it works and how to integrate it into your Flutter app to how it compares with Flutter MCP. 🔍

More about Marionette MCP: ✨ https://t.co/nUuFjXL7r7

#DevTools #OpenSource #FlutterMCP #FlutterDev

[LeanCode 💙 @LeanCodePl]

🤖 AI can write Flutter code. But can it actually use the app it just built?

That's what Marionette MCP solves.

In this lightning talk from Flutter Tech Summit, @matiwojt shows how AI agents can interact with running Flutter apps through UI inspection, screenshots, and automated validation.

🎥 Watch the full talk: https://t.co/bwf1liG5BW

#FlutterDev #MCP #Claude #Cursor

[LeanCode 💙 @LeanCodePl]

⚡ New Release: marionette_mcp v0.6 is here! ⚡

We've just shipped a new update that gives AI agents finer-grained control over your Flutter app under test.

What's new in v0.6?
🔄 Hot restart: restart the app from main() and reset all state.
⌨️ Real key events: simulate hardware keyboard input for forms, focus, and shortcuts.
🖱️ Secondary tap: trigger desktop right-click context menus.
🔧 Custom MCP tools: automatically expose typed extensions as discoverable tools.
🔎  Better accessibility: richer semantics make custom UI readable by AI agents.
✨  More improvements: swipe CLI, stability fixes, and better process cleanup.

Try it out and let us know what you think!

Check out the changelog here: https://t.co/d2RPLlbo9z

#FlutterDev #OpenSource #AIDevelopment #AI

[LeanCode 💙 @LeanCodePl]

Conferences like @FlutterNFriends are the ones we always look forward to - not just for the talks, but for the people, conversations, and the amazing community around Flutter. 💙

This year, you might catch us:
👀 taking another shot at the legendary Code in the Dark challenge,
🎤 on stage sharing our experience,
🤝 at the LeanCode booth, where we might have some new things.

See you there!

#FlutterDev #FlutterNFriends #FlutterCommunity #TechEvents

[Patrol @patrol_leancode]

🚀 Swift Package Manager support is now available in the latest dev releases of Patrol!

📦 patrol: 4.7.0-dev.1
📦 patrol_cli: 4.5.0-dev.1

This has been one of the most requested improvements, and we want to make sure we get it right before the stable release.

We'd love your help testing it in a real project and sharing any feedback or issues you find: https://t.co/R9Wvlxopbm

Your feedback will help us ensure a smooth rollout for everyone. 🙌

#TestAutomation #E2ETesting #MobileTesting #FlutterDev

[LeanCode 💙 @LeanCodePl]

Some of the best moments from Flutter Tech Summit happened on the panel stage, where experts dug into the questions engineering leaders are really wrestling with right now. ✨

Across three debates, they:
🔹 discussed how design systems and coding agents are changing the way we build apps in the agentic era.
🔹 got honest about the gap between AI's promise and the reality most engineering organizations face every day.
🔹 debated whether AI-written code makes end-to-end testing more vital than ever or less relevant, and where humans still belong in the loop.

A huge thank you to the experts who joined these debates and shared their honest perspectives, practical lessons, and real-world experience so openly. 💙

#FlutterTechSummit #FlutterDev #FlutterCommunity #FlutterEnterprise

[LeanCode 💙 @LeanCodePl]

One of the highlights of Flutter Tech Summit 2026 was a Fireside Chat with @MiSvTh from Google's Flutter team, and such a chance doesn't happen often.

A huge thank you to Michael for joining us and sharing an honest, forward-looking perspective on where Flutter is heading in an AI-first world. 🚀

One key takeaway? AI may change how we build software, but strong architecture still matters. Flutter's investments in:
🔹 agentic UIs
🔹 stable Dart MCP tooling
🔹 cross-platform consistency
🔹 design system decoupling
🔹 enterprise-grade stability
position it as a strong foundation for building intelligent apps at scale.

Missed the session? 🎥 Watch the full recording: https://t.co/CIYpBSBHB7

@FlutterDev #FlutterDev #FlutterTechSummit #AIDevelopment #DesignSystems

[LeanCode 💙 @LeanCodePl]

🚀 The fintech world is gathering in Romania, and so are we at the UNCHAIN conference.

This week, our CEO, @lukaszkosman, is attending the @UnchainF - one of the leading finance and technology events in Central and Eastern Europe, bringing together banks, fintechs, and technology leaders. 💳

Whether you're exploring digital banking, mobile app development in Flutter 💙, or digital transformation initiatives, feel free to reach out to Łukasz. 💡

#UNCHAIN26 #Fintech #Banking #DigitalTransformation

[LeanCode 💙 @LeanCodePl]

@LucasJosefiak @lukaszkosman Thank you for helping us with this initiative. 💙

[LeanCode 💙 @LeanCodePl]

🎥 Want to revisit a session from Flutter Tech Summit or catch the talks you missed? The full livestream is available: https://t.co/1pkLqmHpYC

[LeanCode 💙 @LeanCodePl]

🚀 Flutter Tech Summit 2026 is LIVE!! ✨ Our core focus is on what keeps every engineering leader up at night: #AITransformation and #AISolutions - from design systems, through AI-Assisted development, to E2E testing. https://t.co/Kj2FSUbZJf

[LeanCode 💙 @LeanCodePl]

✨What made #FlutterTechSummit 2026 special?

It was the openness of a community (we gathered more than 100 people 🤯) sharing what really happens when you build software at scale.

Plus all the fantastic talks, panels and fireside chat with @MiSvTh from @Google, where we explored Flutter & AI through an enterprise lens together with all attendees. 💡

The best part?
The energy in the room, the questions, the hallway conversations, and the willingness to share knowledge.

💙 That's what makes the Flutter community special.

Thank you to all speakers, panelists and attendees and the LeanCode team for making it happen. 🚀

#FlutterDev #FlutterCommunity #AIDevelopment

[LeanCode 💙 @LeanCodePl]

🚀 Flutter Tech Summit 2026 is LIVE!! ✨ Our core focus is on what keeps every engineering leader up at night: #AITransformation and #AISolutions - from design systems, through AI-Assisted development, to E2E testing. https://t.co/Kj2FSUbZJf

[LeanCode 💙 @LeanCodePl]

@_eseidel We're happy to host you at FTS. ✨

[LeanCode 💙 @LeanCodePl]

Innovation is essential in every industry, especially in one as competitive as banking. That's why it's worth listening to a joint talk by Credit Agricole Bank Polska and LeanCode. ✨

🎤 Piotr Pawlich, Product Owner of Technical Squad at Credit Agricole Bank Polska, alongside @matiwojt, Head of Mobile at LeanCode, will present “From Copilot to GenUI Experiments: AI-Assisted Mobile Development in Banking.”

🌟 Adopting AI in a Polish bank is a journey, not a switch you flip. First, you need Copilot - and getting security approval is harder than the demos suggest. Then you teach it your domain: rules, workflows, MCP servers. Only then can you start playing with GenUI. We share what worked at Credit Agricole Bank Polska, and end with a live demo on the Credit Agricole design system.

Register for the Flutter Tech Summit livestream. 👉 https://t.co/rw0Kdjik5r

#AIDevelopment #DigitalBanking #FlutterDev #FlutterTechSummit

[Patrol @patrol_leancode]

Today’s magic number is 300! 🤯

We’ve just hit two incredible milestones at the exact same time:

✨ 300 followers right here on X!
✨ 300,000 monthly downloads on pub. dev!

It’s great to have you all here. 💛 This, along with a growing number of downloads, gives our Patrol team the ultimate motivation to keep pushing the boundaries of E2E testing.

Thank you for building (and testing) with us! 🥂🚀

#FlutterDev #MobileTesting #FlutterCommunity #QualityAssurance

[LeanCode 💙 @LeanCodePl]

Have you ever wondered how an app with 600k monthly active users is tested? Don’t miss the talk by experts from @SonovaGroup and LeanCode at the Flutter Tech Summit! ✨

🎤 Eduard Siewert, Senior Software Architect at Sonova, and @oskar_lncd, QA Automation Engineer at LeanCode, will give a talk on: “Shipping the Sennheiser App with Confidence: The Role of Patrol E2E Testing.”

🔎 Full end-to-end testing is possible for every Flutter app, even when physical hardware is involved. Sennheiser demonstrates this by simulating their products with robust fakes in CI. To scale test coverage, Patrol MCP allows AI agents to inspect the UI and author tests efficiently. A practical blueprint for accelerating release cycles and engineering velocity.

Sign up for the livestream 👉 https://t.co/rw0Kdjik5r

#FlutterDev #FlutterTechSummit #E2ETesting #AutomatedTesting

[LeanCode 💙 @LeanCodePl]

🚀 Flutter Tech Summit 2026 is officially SOLD OUT! But there’s still a way to join us LIVE on June 9👉 register for the livestream!

🔗 https://t.co/qW0Xs4xsoW

Why is it worth joining?

✨ Our core focus is on what keeps every engineering leader up at night: #AITransformation and #AISolutions - from design systems, through AI-Assisted development, to E2E testing.

✨ You’ll hear from experts representing companies like @Google, @nubank, Credit Agricole Bank Polska, @SonovaGroup, @1KOMMA5GRAD, Tide, @Pinterest, @widgetbook_io, and LeanCode

#FlutterTechSummit #FlutterAI #FlutterDev

[LeanCode 💙 @LeanCodePl]

Excited to see our Flutter experts taking the stage at the @mDevCamp conference in Prague on June 4! 🚀

Kamil Sztandur and Agnieszka Forajter will present: “Flutter Refactors at Scale: Change Everything, Break Nothing.” ✔️

Refactoring a Flutter app is one thing. Refactoring across multiple repositories, dozens of developers, and production-grade systems used by thousands of users? That’s a completely different challenge.

🔎 More about the event https://t.co/hpv3Q9WQiR

#FlutterDev #MobileDevelopment #SoftwareArchitecture #mDevCamp

[LeanCode 💙 @LeanCodePl]

Over 2 million customers trust Credit Agricole Bank Polska with their everyday banking - now their experts are coming to Flutter Tech Summit. ✨

🎤 Ariel Strawczyński, Manager Digital Banking, and Rafal Charlampowicz, Digital Accessibility Expert, both at Credit Agricole Bank Polska, alongside Artur Wiśniewski, Flutter Developer at LeanCode, will present “Error 404: Barriers Not Found. Scaling WCAG in Digital Banking.”

🌟 In this session, the speakers will reveal the macro-evolution of a live banking app and show how they adapted a massive digital banking ecosystem to meet strict WCAG accessibility standards - without starting from scratch. From precise refactoring with Flutter to a unified, barrier-free product.

Grab the last spot 👉 https://t.co/rw0Kdjik5r

#Accessibility #DigitalBanking #FlutterDev #FlutterTechSummit

[Mateusz Wojtczak 💙 @matiwojt]

testing out Marionette MCP x brand new @antigravity CLI @FlutterDev at #GoogleIO