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Márton Braun

@zsmb.co

1.8K followers 230 following 500 posts

Developer Advocate @ JetBrains, working on Kotlin and Compose Multiplatform, KMP tooling, and Amper. Instructor @ BME-VIK. Co-organizer @ Android Budapest. GDE for Android. Ex-Google.

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Márton Braun @zsmb.co · May 19

KMP tooling! Get your KMP tooling here!

Jokes aside, it's great to have this finally out in a public release. Please try it and send feedback our way.

Kotlin by JetBrains @kotlinlang.org · May 19

🎉 The new Kotlin Multiplatform for IntelliJ IDEA and Android Studio!

✨ Integrated New Project wizard
🔍 Preflight checks
🔧 Multiplatform run configurations
🧭 Cross-language support
🎨 Compose Multiplatform support
🔥 Compose Hot Reload

Learn more
blog.jetbrains.com/kotlin/2025/...

Kotlin Multiplatform Tooling: Now in IntelliJ IDEA and Android Studio | The Kotlin Blog

The new KMP plugin for IntelliJ IDEA and Android Studio simplifies every part of the KMP experience, from project setup to Compose UI previews.

blog.jetbrains.com

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Márton Braun @zsmb.co · 1d

So... Is it still worth learning to code?

Is it still worth learning to code?

Clara explores whether learning to code is still worthwhile, offering crucial insights into the learning process and the future of programming. 🎓JetBrains Student Pack Sign up for free professional IDEs, the Code With Me Plugin, and more: https://jb.gg/academy/free-offer-students 📚 Courses: Fin

www.youtube.com

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Márton Braun @zsmb.co · 2d

If you're interested in building your own AI agents, you should try the Koog framework that lets you do that in Kotlin!

We now have a brand new landing page for it, too:

Koog: JVM-native framework by JetBrains for building AI agents

Koog is a framework for building scalable and enterprise-ready AI agents across all platforms – including JVM, Android, iOS, JavaScript, and WebAssembly.

www.jetbrains.com

Reposted by Márton Braun

Sebastian Sellmair @sellmair.dev · 3d

We released Compose Hot Reload 1.0.0-rc01 🎆
What started as a happy accident was promised to be pushed towards stability as quickly as possible, allowing you to rely on a stable user experience.

github.com/JetBrains/co...

Release v1.0.0-rc01 · JetBrains/compose-hot-reload

Release summary 🔥🎆 The project is promoted to the 'RC' stage. We are still working on convenient tooling in IntelliJ and Android Studio and will continue experimenting there. The 'core technology' ...

github.com

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Márton Braun @zsmb.co · 3d

We just published the 1.0.0-rc01 release for Compose Hot Reload! With this, we are quickly approaching our first stable release.

Have you tried Hot Reload yet? Let us know how it's working for you!

Release v1.0.0-rc01 · JetBrains/compose-hot-reload

Release summary 🔥🎆 The project is promoted to the 'RC' stage. We are still working on convenient tooling in IntelliJ and Android Studio and will continue experimenting there. The 'core ...

github.com

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Márton Braun @zsmb.co · 9d

This continues to sound like an absolutely awful time.

The changes give Google unreasonable control over all Android devices and brings everyone closer to the locked down Apple experience.

The current Play verifications and warnings for untrusted sources should be enough.

Android Developers @androiddevs.bsky.social · 9d

👋 We know there's been a lot of conversation about developer verification. We hear you!

Developer feedback is essential as we build this process. We announced this requirement with a long lead time so you have plenty of time to ask questions, provide feedback, and get ready for

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Reposted by Márton Braun

Zac Sweers @zacsweers.dev · 14d

Designers when an android engineer ask to just use the system back arrow: “our custom back arrow is an expression of our brand, we cannot yield to looking like a Google app”

Designers when Liquid Glass looks like shit everywhere in their app: “LEROY JENKINSSSSSSS”

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Márton Braun @zsmb.co · 16d

Have you tried incremental compilation for Kotlin/Native yet? If yes, did it work well in your projects? Did it cause any problems?

To try it, add this to your gradle.properties:

kotlin.incremental.native=true

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Márton Braun @zsmb.co · 16d

Selling black shirts outside CityCube tomorrow might be a profitable business, huh

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Márton Braun @zsmb.co · 17d

🦦🦦🦦🦦🦦

Márton Braun @zsmb.co · 17d

I had a YouTube tab crash the exact same way like 10 minutes ago... Starting to think it was a Chrome outage 😅

Márton Braun @zsmb.co · 17d

macOS Tahoe doesn't exactly feel polished.

(Besides the broken labels, it also just never finds a setting that Spotlight used to find correctly every time)

Márton Braun @zsmb.co · 20d

True, refactoring can distinguish what the import currently belongs to. I think there's still an argument to be made that the import is technically a usage of both declarations, and if you're looking for all usages, they need to be listed for correctness. But I'll ask around about it!

Márton Braun @zsmb.co · 20d

You might easily have leftover imports in files with no actual usages, which you'd still want to find in some cases.

It also seems to me that the toggle is remembered, though it might be per-project.

Márton Braun @zsmb.co · 20d

If you know what you're doing and know that there's a toggle, sure. But I assume most people don't know about it, so the default needs to be "safer".

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Márton Braun @zsmb.co · 20d

Oh, that's a clash problem, I'm looking at usages of a function here but most of the imports are for the object with the same name in the same package. Same sort of setup as MaterialTheme.

Márton Braun @zsmb.co · 20d

... and given that it took me 10 years to learn about the switch, it's probably better to show all usages by default.

Márton Braun @zsmb.co · 20d

I imagine it's because they are still usages as far as the compiler is concerned. And you need it when you want to know if the declaration can be safely removed, or find a where you used it previously and now have a leftover import.

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Márton Braun @zsmb.co · 21d

I still keep learning about cool new features in IntelliJ. The latest one: excluding imports when looking for the usages of something. So neat!

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Reposted by Márton Braun

Sebastian Sellmair @sellmair.dev · 22d

Say hello to hot reloading compose resources, supported from CMP 1.10.0-alpha01 🔥

Initially requested by @zsmb.co and @rakhman.info

Thanks to Nikita Lipsky 😇

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Márton Braun @zsmb.co · 23d

The next Android Budapest meetup is on Thursday! We'll be exploring Compose Hot Reload 🔥 and looking at JavaScript security issues with WebViews. RSVP now:

Android Budapest September 2025, Thu, Sep 18, 2025, 6:00 PM | Meetup

Returning from a summer break, it's time for school - we mean... an Android Budapest meetup. At our September event, you can learn more about the technology and meet fellow

www.meetup.com

Márton Braun @zsmb.co · 26d

And of course kmp.new 😉

Kotlin Multiplatform Wizard | JetBrains

Create your first multiplatform project using the Kotlin Multiplatform wizard for Android, iOS, and Desktop, or use one of the pre-made templates.

kmp.new

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Márton Braun @zsmb.co · Sep 9

I think this JavaScript code is experiencing a relationship crisis

Reposted by Márton Braun

Vadim Briliantov @vadim-briliantov.bsky.social · Sep 7

If for some reason you haven’t seen it yet, we released Koog — one of the most advanced frameworks for building AI agents!
Targeting unmatched range of platforms: JVM backend, Android, iOS, JS, and WebAssembly

#ai #java #kotlin #genai #llm #openai #android #ios #js

github.com/JetBrains/koog

GitHub - JetBrains/koog: Koog is the official Kotlin framework for building and running robust, scalable and production-ready AI agents across all platforms – from backend services to Android and iOS,...

Koog is the official Kotlin framework for building and running robust, scalable and production-ready AI agents across all platforms – from backend services to Android and iOS, JVM, and even in-brow...

github.com

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Reposted by Márton Braun

Sebastian Aigner 📡 @sebi.io · Sep 5

Koog, the Agentic AI framework for Kotlin that we're building at JetBrains, is, well, kind of cool. Especially since it's not designed for toy projects, but to ✨ scale ✨! Learn more: medium.com/@vadim.brili...

Why JetBrains’ Koog is The Most Advanced JVM Framework For Building AI Agents .

Koog: JetBrains’ JVM framework for building enterprise-grade AI agents.

medium.com

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Márton Braun @zsmb.co · Sep 4

New language video! Value classes got significantly improved Java interop in Kotlin 2.2. Check out how it works:

Exposed inline value classes for Java in Kotlin 2.2

Read the full proposal: https://github.com/Kotlin/KEEP/blob/jvm-expose-boxed/proposals/jvm-expose-boxed.md Join the discussion: https://github.com/Kotlin/KEEP/issues/394 See everything new in Kotlin 2.2: https://kotlinlang.org/docs/whatsnew22.html Kotlin 2.2 lets you generate boxed versions of me

www.youtube.com

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