Jakub Fijałkowski

I should probably put something meaningful here.

[Flutter & Friends @FlutterNFriends]

Dart VM, 3D rendering, in-app monetisation and so much more!

Everyone will find something interesting at Flutter&Friends 2026 🤩

Early Bird tickets available only until July 1st! Don’t miss the fun and the learning 👩🏼‍🏫🕺🏽

🎟️ https://t.co/RsGnyLWtgY

[LeanCode 💙 @LeanCodePl]

We are a tech partner of Nubank!

@nubank isn’t just another fintech. It’s the world’s largest digital bank outside Asia, serving over 130M+ customers 🎉 and continuously redefining what modern financial services look like.

Founded in 2013, they’ve built their position by challenging the status quo with proprietary technology and bold product thinking across Latin America.

Nubank has also been a pioneer in adopting Flutter at scale. Back in 2019, they made a move that many enterprises were still hesitant to take and proved that Flutter can power massive, high-quality systems without slowing innovation. 🚀

As they’ve said themselves, Flutter was a game-changer for their ability to scale, and that impact is still visible today as they expand into new markets.

Now, we’re proud to be part of that journey. 🙌

#Nubank #TechPartnership #DigitalInnovation #FlutterEnterprise #FlutterDev

[LeanCode 💙 @LeanCodePl]

There aren’t many chances to sit down directly with the @FlutterDev team and talk about the future of Flutter - especially through the lens of large-scale apps. We want to change that at the Flutter Tech Summit.

🎤 @MiSvTh, Group Product Manager for Dart & Flutter at @Google, is joining us for a Fireside Chat: The Future of Flutter + AMA Session. The stage co-host: @lukaszkosman, CEO at LeanCode.

🌟 A fireside chat means a real, candid conversation. Think of it as a behind-the-scenes discussion and a chance to get a closer look at what’s actually coming next for Flutter in enterprise environments.

The best part? 💬 You get to ask your questions during the AMA. Bring your challenges, doubts, and ideas - we’re opening the floor.

Seats are limited, and this is one of those sessions you don���t want to miss. 👉 https://t.co/rw0Kdjik5r

#FlutterTechSummit #FlutterDev #AppDevelopment #Google #FlutterDevelopment

[Jakub Fijałkowski @Fiolek_]

We've released a new version of Marionette with a bunch of improvements! Now you can do many more gestures and, with the CLI, record a video!

[LeanCode 💙 @LeanCodePl]

⚡ New Release: marionette_mcp v0.5 is here! ⚡

Our latest update to marionette_mcp is officially live, and a huge portion of these improvements comes directly from external contributors! 💙

What’s new in v0.5?
✨Video Recording: You can now record a video of your app under test - perfect for debugging and AI agent visibility!
✨Advanced Gestures: We've added support for `swipe`, `drag`, `pinch zoom`, and `double-tap` to make your interactions even more realistic.
✨Bug Fixes: Various stability improvements to ensure smoother performance.

If you want to find out more about Marionette, go here: https://t.co/qjJtp3S5bN

#FlutterDev #OpenSource #MobileDevelopment #AI #AIDevelopment

[LeanCode 💙 @LeanCodePl]

Most Flutter events are built for developers. Flutter Tech Summit is built for engineering leaders who have already made that call - and are living with the consequences.

Last year, 60+ engineering leaders from global enterprises spent a day talking about Flutter - not in theory, but from their own real-world stories.

We're back! 🔥 Flutter Tech Summit 2026 | June 9th, Warsaw 🔗 https://t.co/qW0Xs4xsoW

At Flutter Tech Summit 2026, our core focus is on what keeps every engineering leader up at night: AI Transformation.

Let's be honest: most enterprise teams are still planning their AI transformation while their competitors are already shipping with it.

Here's what we're covering:
🤖 AI Transformation in software development - real case studies, not theory
🏗️ AI Ready Design Systems - the foundation that makes AI-assisted development scalable
🛡️ AI-driven QA automation - the guardrails that make it safe to ship faster

Speakers from global enterprises. Seats intentionally limited → https://t.co/qW0Xs4xsoW

#FlutterTechSummit #FlutterEnterprise #AICoding #FlutterAI #MobileAI

[Jakub Fijałkowski @Fiolek_]

We just published v0.4 of the Marionette MCP - the tool to control your app with AI Agents. In this release, we've added the long-awaited CLI, the ability to extend Marionette with your own tools, and a nice set of fixes! Hope you will enjoy it!

[LeanCode 💙 @LeanCodePl]

https://t.co/R7Fa9rgLr4

[Jakub Fijałkowski @Fiolek_]

@jessfraz Just like on Facebook (at some point in time, at least)? :D

[Jakub Fijałkowski @Fiolek_]

@unnamed1tw Yeah, temporary. Works now. Thanks! :)

[Jakub Fijałkowski @Fiolek_]

Cursor is down/struggles a little bit?

[Jakub Fijałkowski @Fiolek_]

@jezell @LeanCodePl @antigravity @pk_iv 👀, will look into it!

[LeanCode 💙 @LeanCodePl]

🚀 Speed Up Software Delivery with AI: Meet LeanAI. Sign up for our free webinar, which takes place this Thursday: https://t.co/wmxh7cRHOy

🎙️ Speaker: @Fiolek_, Head of Backend at LeanCode
🗓️ Date: October 9, 3:00 PM CEST

Learn about:
💡 Our practical experience integrating AI into development
⚙️ The principles behind our LeanAI framework
🚀 How we deliver faster without compromising quality

Join this free webinar to find out how we at LeanCode do it.

#Webinar #LeanAI #SoftwareDevelopment #AI #AIDevelopment

[Jakub Fijałkowski @Fiolek_]

@GeoffreyHuntley @cursor_ai Quick question - how did you come up with the rule structure (i.e. the XML/YAML/MD combo)? Does Cursor (or any other tool) follow the actions in any wah?

[Jakub Fijałkowski @Fiolek_]

Time to start (for the third time) my course on the software architecture. I wonder how much I remember what I put on the slides. 😅

[Jakub Fijałkowski @Fiolek_]

@ponylang

[Jakub Fijałkowski @Fiolek_]

@pawel_lukasik @konradkokosa I started wondering the same yesterday, after I realized that .NET Foundation still exists.

[Jakub Fijałkowski @Fiolek_]

@mutableai please auto wiki Leancodepl/corelibrary

[Jakub Fijałkowski @Fiolek_]

And I really did generate an atmospheric, dark image. :D

[Jakub Fijałkowski @Fiolek_]

Time to get back to #AdventOfCode2023 missing images. I attempted something different this time - included the story unchanged, with a direct explanation where it is put. The context was at the beginning of the #prompt, but the main instruction - at the end. #DALLE3 #GenAI

[Jakub Fijałkowski @Fiolek_]

What made it somewhat include the context was a fixup - adding elves there. Then, it finally added something that resembles floating islands in the distance.