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]

🚀 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

[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]

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

[LeanCode 💙 @LeanCodePl]

At the Flutter Tech Summit, we will welcome experts from @1KOMMA5GRAD and @widgetbook_io to the stage! ✨

🎤 @ABausG, Senior Software Engineer at 1KOMMA5°, and @LucasJosefiak, CEO & Co-Founder at Widgetbook, will give a talk on: “How 1KOMMA5º Builds a Custom Design System for Developers and Agents With Widgetbook.”

🌟 Zero visual bugs. 20% time saved. 120,000+ households powered by clean energy. That’s what 1KOMMA5°’s Flutter design system, Harmonized, delivers. In this session, Anton and Lucas will show how Widgetbook helps developers mirror Figma in Flutter, catalog every component, make design review part of every PR, and turn coding agents into production-quality UI builders.

Secure your spot now. Seats are limited. 👉 https://t.co/rw0Kdjik5r

#FlutterDev #FlutterTechSummit #DesignSystems #AIDevelopment

[LeanCode 💙 @LeanCodePl]

We can't wait for those first-hand insights from #GoogleIO straight from our team @matiwojt & @lukaszkosman who are now on the ground in sunny California. ☀️

Especially curious about what’s new in Flutter 🤓 but also how Google is pushing the future of AI-powered products forward.

#AI #Google #FlutterDev

[LeanCode 💙 @LeanCodePl]

An expert from @nubank, a digital bank that serves 130M+ customers across multiple countries, on stage at the Flutter Tech Summit in Warsaw!

🎤 Rafael Lisboa, Senior Staff Software Engineer at Nubank, will boost our lineup with a compelling lighting talk: "Feature Flags: Experimentation-First Releases in Nubank’s Flutter-powered App."

🌟 Releases at Nubank are driven by feature flags and experimentation, not by blind “big bang” launches. Rafael will show how Flutter apps use remote config for A/B tests, rollouts, and kill-switches - guided by metrics. Learn to decouple deploy from release, manage flags, and ship safely with data-driven decisions.

👉 https://t.co/rw0Kdjik5r

#FlutterTechSummit #FlutterDev #AppDevelopment #Nubank #AppArchitecture

[LeanCode 💙 @LeanCodePl]

If you are in Poland and interested in joining the SAP Inside Track Conference, go here: 🔗 https://t.co/JpoadibVV1

[LeanCode 💙 @LeanCodePl]

Happy to share that on May 23, our Engineering Lead, Marcin Dardziński, together with SAP Developer Tech Lead, Adrian Dengusiak, will give a talk at the SAP Inside Track Conference in Wrocław, Poland. ✨

Their talk 👉 Flutter meets SAP: Native Mobile Apps the Clean Core Way

SAP Inside Track is a community-driven conference created by SAP experts for the SAP ecosystem.

The organizers: Capgemini and WSB Merito Wrocław University. 🙌

#SAP #MobileDevelopment #EnterpriseApps #SAPCommunity

[LeanCode 💙 @LeanCodePl]

If you are in #Warsaw, let’s meet at Flutter Warsaw this month for an on-site event. As always, you can count on inspiring talks and great #FlutterDevs and Flutter enthusiasts. 😎

[Flutter Warsaw 💙 @FlutterWarsaw]

Hey #FlutterDev! Let's meet at #FlutterWarsaw on May 26 in Warsaw. 🎉Artur Wiśniewski will share insights on accessibility at scale, and Oskar Zając will show how to do E2E testing fast and efficiently with AI & Patrol. Also networking + free🍕🍻. Sign up: https://t.co/8lNxD1DZ7D

[LeanCode 💙 @LeanCodePl]

Visual regression testing with less boilerplate. ✨

That’s the idea behind `golden_test` - a Flutter package created by our team member Damian Kasperski to make golden tests easier to scale and maintain.

Most teams don’t under-test UI because they ignore quality.
They do it because visual testing often feels expensive in effort.

`golden_test` helps developers:
✅ reduce repetitive setup,
✅ run tests across multiple devices,
✅ configure themes & locales in one place,
✅ generate screenshots that look like the live app.

Check out his package & practical article: “Flutter Golden Tests Made Easy” 👇
https://t.co/fHbFcaMraS

[LeanCode 💙 @LeanCodePl]

Go beyond the basics of Flutter E2E testing with Patrol & AI.

🎥 Watch our webinar: “Mastering Patrol & AI: Next-Level E2E Testing”: 🔗 https://t.co/tTOM6oU6VL

Our QA Engineer, @oskar_lncd, and the creator of Patrol MCP will walk you through:
✅ From demo to production-ready setup
✅ Speeding up test development with AI
✅ Our best practices
✅ Common mistakes to avoid
✅ Test architecture for scale

Start doing Flutter testing the right way & faster. Sign up and watch the webinar!

#FlutterDev #E2ETesting #FlutterTesting #TestAutomation

[LeanCode 💙 @LeanCodePl]

📣 The full Flutter Tech Summit 2026 agenda is here! A handful of seats remain. Explore the agenda and secure yours.

Flutter Tech Summit is built for engineering leaders who know Flutter not in theory, but from their own lessons learned.

✨ In this edition, 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.

Expect insights from companies like @Google, @nubank, Credit Agricole Bank Polska, @SonovaGroup, @1KOMMA5GRAD, Tide, @Pinterest, @widgetbook_io, and more for an exclusive summit focused entirely on real-world enterprise Flutter at scale.

🎤 Top experts on stage:
@MiSvTh (Google), João Menezes (Nubank), Julivan Santos (Nubank), Rafael Lisboa (Nubank), Eduard Siewert (Sonova), Piotr Pawlicha (Credit Agricole Bank Polska), Ariel Strawczyński (Credit Agricole Bank Polska), Rafał Charłampowicz (Credit Agricole Bank Polska), @ABausG (1KOMMA5°), @LucasJosefiak (Widgetbook)

+ the LeanCode expert team.

If you’re serious about building scalable, future-ready mobile apps with Flutter - join us! https://t.co/qW0Xs4xsoW

#FlutterTechSummit #FlutterEnterprise #FlutterDev #FlutterAI #MobileAI

[LeanCode 💙 @LeanCodePl]

If you’re excited about automation, modern tooling, and pushing software quality forward, you’ll fit right in. 🚀 Join us as a QA Automation Engineer! (Polish required) 👉 https://t.co/ODUJVBbFlR

We’re looking for a #QAAutomation Engineer who wants to go beyond “just testing”, has experience in test automation, has solid programming skills, and is into AI solutions.

At LeanCode, you’ll:
✨ build and maintain automated tests for enterprises & scaleups,
✨ develop testing infrastructure,
✨ help shape how we use AI in our engineering workflows,
✨have an impact on developing Patrol,
✨be part of a conference & meetup-driven culture.

#Hiring #ITJobs #JobOffer #TestingJobs

[LeanCode 💙 @LeanCodePl]

Today, we’ll be guests of @craig_labenz from the FlutterDev team in the #ObservableFlutter series! 🎉

@matiwojt will talk about Patrol 4.0 (including web) and explain how to catch the #AI wave by showing how to write and validate app features using marionette_mcp and patrol_mcp.

Join us at 🕕 6 PM CEST | 12 PM EDT | 9 AM PDT on the FlutterDev YouTube channel.

#FlutterDev #E2ETesting #MCP #FlutterTesting

[Flutter @FlutterDev]

This week on #ObservableFlutter, LeanCode's Head of Mobile @matiwojt joins the stream to discuss what's new in Flutter integration tests with Patrol 4.0 and Marionette MCP.

Tune in live tomorrow at 9am PT → https://t.co/DzEZ68nhEJ

[LeanCode 💙 @LeanCodePl]

🎥 What happens when product and tech truly work as one team? Watch a Case Study about Activy & LeanCode.

Activy is a Polish wellbeing app that turns physical activity into a game - encouraging employees to cycle instead of drive and build healthier habits together. 300K+ downloads. 4.7⭐ rating.

But those numbers didn’t come from “just building an app.” They came from continuous evolution and real tech partnership.

👉 More about the project: https://t.co/tuCl4ilE5w

#FlutterDev #AppDevelopment #TechPartnership #WellbeingApp #HRTech

[LeanCode 💙 @LeanCodePl]

We open the Flutter Tech Summit speakers' agenda with a big announcement. We bring on stage experts from @nubank! ✨

🎤Joao Menezes, Head of Design System at Nubank, and Julivan Santos, Engineering Manager at Nubank, will give a talk on: “Design Governance as Code: Shipping Native-Quality Flutter in Minutes with Server-Driven UI and AI”.

🌟Nubank’s Flutter app renders server-driven UI, streaming screen definitions for native-quality experiences - reducing reliance on app store releases and enabling rapid experimentation. It’s a one-of-a-kind chance to learn how NuDS, Common Spaces, and AI tools help teams co-create, generate code, and ship UI updates faster.

Secure your spot now. Seats are limited. 👉 https://t.co/rw0Kdjik5r

#FlutterTechSummit #FlutterDev #AppDevelopment #Nubank #FlutterDevelopment #DesignSystem #DesignGovernance

[LeanCode 💙 @LeanCodePl]

It feels like our Patrol graduated and received a diploma. So proud💛

[Patrol @patrol_leancode]

Is Patrol officially listed in the Flutter docs? You bet! 🚀

Full disclosure: we requested it and submitted the PR ourselves... but hey, if you don't celebrate your own wins, who will? 😉

Proud to see our framework recognised as a go-to tool for Flutter E2E testing!

#FlutterDev #TestAutomation #E2ETesting