genAI: "This PR reverts the attempted Robolectric integration due to fundamental architectural incompatibility between TestBalloon and Robolectric." Human: "Hold my beer." github.com/infix-de/tes...

Grateful and happy to be appearing on stage at @kotlinconf.com in May! Looking forward to seeing you all in Munich.

TestBalloon 🎈 0.8.0 is out, the Kotlin-first test framework. Conciseness and flexibility meet JUnit*-like testing powers on all platforms: Scope-friendly, anti-boilerplate DSL, function calls create tests (parameterizable), nesting fixtures, all easily customized. ♥️ Yours? github.com/infix-de/tes...

Reminder that in 2026, just like in 2025, `*.main.kts` files are better replacement for most of your scripting needs! mbonnin.net/2024-11-21_s...

So I tried to find out where the action is for Paris API days. Then Apple Maps started to show Russian text on one of its buttons!?

Just 6 months after a small-circle demo at KotlinConf, TestBalloon has achieved its first 100 stars on GitHub today. ♥️ On a mission to make Kotlin testing incredibly easy, its trajectory is showing lots of upwind, even compared to the wildly popular (and excellent) Ktor. github.com/infix-de/tes...

TestBalloon, the next generation Kotlin test framework, has now reached flight level 0.7.1. Please do check out its unique combination of characteristics, making it 🌋 powerful, 🚀 blazingly fast, and ☺️ so easy to use. There's a brand-new documentation site, too! github.com/infix-de/tes...

YouTrack today:

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...

Added some KDocs, this can be tested already, release coming closer. Implemented last missing feature and added localization bundles. github.com/karmakrafts/...

This is an amazing accomplishment by the Compose Multiplatform and Wasm teams at JetBrains, as well as everyone else contributing. I am so happy that they finally got this far!

Took this F18 race catamaran to a beach bar. Having the unusual combination of a non-alcoholic beer, coffee and chocolate cake. 😎

Entertaining, insightful, inspiring. A perfect start into the weekend. 🚀

😂 When TestBalloon completes 1.4 million tests in under 10 minutes and IntelliJ IDEA needs 6 minutes extra time to process the test results.

grug some very good points in there! grugbrain.dev

Sunday writing about why (and how) you should isolate your plugins work. mbonnin.net/2025-08-24_i...

TestBalloon 0.6.0 is out now, welcoming Android to next-generation Kotlin testing: ✅️ Android local tests and Android instrumented tests in addition to KMP. ✅️ Nested, concurrent and parallel tests on the Android platform. github.com/infix-de/tes... I'd love to hear your thoughts! Please share!

🤓 Fascinating read about OpenAI, Anthropic and the business of LLMs ethanding.substack.com/p/openai-bur...

What if TestBalloon's next release would lift Android instrumented tests to a new flight level? github.com/infix-de/tes...

Another round of valuable 🧑‍🍳 advice helping you write Gradle plugins with confidence:

A recent discussion has led me to realize that many folks do not fully grok the parts of Gradle that can be made parallel. By default almost all of Gradle runs in a serial way. So I wrote a post about it www.liutikas.net/2025/07/29/P... #gradle

Finally announcing a brand-new Kotlin Multiplatform test framework: TestBalloon is now ready for you to explore, built from the ground up to make writing all kinds of Kotlin tests simple and fun, everywhere! Please share, tell me what you think! github.com/infix-de/tes...

Version 0.34.0 of the gradle-maven-publish-plugin finally comes with configuration cache support. Dropping support for Sonatype OSSRH unblocked us from waiting for Gradle to resolve the underlying issue on their side. github.com/vanniktech/g...

A great breakdown by @mbonnin.net on why you should avoid the "kotlin-dsl" Gradle plugin. Just write your binary plugins using a normal "org.jetbrains.kotlin.jvm" plugin mbonnin.net/2025-07-10_t... #gradle

If you want your existing Maven publishing to arrive in 2025, this is for you. If you'd like to know more about Maven Central snapshots, Gradle isolated projects, or quality API design, this is for you as well.

🎈 TestBalloon, the new Kotlin Multiplatform test framework just got an IDE companion: plugins.jetbrains.com/plugin/27749... Use its gutter icons to run individual tests or test suites with any level of nesting from common code on all Kotlin targets. Next stop: Support incremental compilation.

📣 We’re hiring for Kotlin/Wasm! Excited about Kotlin and WebAssembly? So are we. Join our team to work on innovative tech that’s changing how web apps are built. Apply now ⤵️ kotl.in/wasm-apply Repost appreciated! 🙌 #Kotlin #WebAssembly #Wasm #Hiring #DevJobs

TestBalloon 🎈on the rise, even before being announced.

Learning more about mastering library compatibility from a master of library compatibility @mbonnin.net. Now need to do my homework and revisit my Gradle setup.

Me looking absolutely tired 🥱 after partying, discussing incremental compilation with @bashorov.com, porting the compiler plugin to 2.2.0-RC in the hotel lobby and releasing TestBalloon at 4 am from my hotel room. So much fun together with all of you folks! ❤️ #KotlinConf

Tips to keep democracy alive in 2025: 1. Be Brave. Avoid helpless/hopeless talk. Authoritarians want you to feel powerless because it makes their work easier. Courage, faith, and optimism are essential. Fascism feeds on cynicism and pessimism. Starve it. www.theframelab.org/how-to-thriv...

I got Heron compiling for iOS on the iPad and I still can't believe the value prop of compose multiplatform. I was able to build an offline-first multiplatform app in 4 weeks! Frame rate isn't great, and I don't know if iOS insets for the status and nav bars are supported, but my mind is blown.

I wrote a really small year end review about my favorite Android Jetpack releases this year. We may just end up seeing this as the year of Jetpack multiplatform: www.tunjid.com/articles/202...

If people are looking for a well-founded characterization of Hexagonal architecture, I'll happily point them to this excellent article.

Finally! Kotlin/Wasm destined to become a thing on iOS browsers. 🎉

Already looking good for Kotlin, but: What would it look like if they were using a set of metrics that would ↗️ favor 👍 fewer 👍 well-engineered PRs trailed by 👍 fewer issues 👍 ↘️ over 👎 more 👎 quick&dirty PRs trailed by 👎 more issues? github.blog/news-insight...

Working on a library design, still somewhat reluctant to publish...

🎇 After announcing project 'firework' aka. #compose #hotreload, I promised to document the journey. This video will explain the first attempt at implementing Hot Reload: ClassLoaders (why it is great, but not the currently used approach) youtu.be/whUy3JfOX9w

If you do any Compose UI work you owe it to yourself to read this excellent post by @zachklipp.com blog.zachklipp.com/centering-in... Just like any of Zach's articles, there is so much good information in there, you will thank yourself spending the time understanding what is being explained in it!

People are often surprised when I tell them this: both Twitter and Facebook/insta/threads are now specifically engineered to downgrade, hide, suppress real journalism. If this platform is different, that's a huge change

Slow. Clap.

Kotlin's List<T>.indexOf(element: T) returns -1 if the element could not be found. Do you find that slightly strange, too? In IJ plugin code, there's some relief in fleet/util/Helpers.kt: public fun <T> List<T>.indexOfOrNull(element: T): Int? Lets us use ‘indexOfOrNull(element) ?: return’.

hard to exaggerate how nuts the engagement is on Bluesky compared to 𝕏. a vastly smaller user base (at least officially), but just look at these stats for one of the biggest newspapers on Earth. Musk has absolutely trashed the platform. folks, you are not locked in on 𝕏. not even a little.

Kotlin K2: Love that little 🌲 FIR icon appearing in the IDE's status bar. Has a deterrent effect on red squiggles in interesting code.

👋 Anyone missing @OGKodee, @kotlin, @talkingkotlin, @JetBrainsKtor over here or is it just me?

How not to get distracted by the hyperbolic noise. 1. Ignore horserace-journalism. That's all the headlines of who said what. It's no information (what they do is). When you know what people stand for, you don't need to read every example of attention bait.

"I have some blocking code unter test that erroneously runs into an endless recursion." Why can't we terminate a test after exceeding a timeout? A 🧵.

New superpowers on the horizon with Compose Hot Reload. Follow @sellmair.io for more on this and other cool stuff!

This is really good bsky-follow-finder.theo.io