Cash Android has recently switched to Metro, a new, fast dependency injection framework built for K2. That was a fun project and we're really happy with the results! Sharing details on how we approached the migration to help teams adopt Metro: code.cash.app/cash-android...

My talk on Navigation 3 from #dcldn25 is live (very impressive publishing from the droidcon team!). www.youtube.com/watch?v=j1Oi...

i wrote about how to fix any bug

> During an investigation, your job is not to fix issues, it is to understand root causes.

@p-y.wtf says (and does) it all…

Awesome post from @f1xedgear.bsky.social and @autonomousapps.bsky.social about improving Gradle sync times in the IDE

engineering.block.xyz/blog/shrinki...

#gradle

Here are the slides for the "Navigating Dependency Injection with Metro" talk I just gave at DroidKaigi. Great conference and super well-organized.

speakerdeck.com/zacsweers/na...

Has anyone benchmarked kotlin's SharedFlowImpl?

I'm seeing thread contention on a SharedFlow with several collectors, and a quick peek shows that that emitting & taking values all uses a single central lock per instance (.. and it's `this` which is an antipattern)

github.com/Kotlin/kotli...

📈 Here are the top 3 things that I love most about the Mobile System Design Interview #MSDI book 📖 (pictures attached for your reference!) 👇

Droidcon NYC videos are up!

I was on a panel about dependency injection and also hosted a panel on build systems, enjoy!

www.droidcon.com/2025/07/23/t...

www.droidcon.com/2025/07/23/b...

PROTIP: put it in ~/.gradle/gradle.properties and never deal with it again

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

"Rich Errors in Kotlin” – the KotlinConf’25 talk by Michail Zarečenskij is now live on our YouTube channel! 🎉📺

Discover how Kotlin’s nullability model can be generalized to restricted union types for better error handling.

👉 Watch the full video: kotl.in/richerrors

Thanks for attending my #dcnyc25 talk! You can find the slides here on Speaker Deck: speakerdeck.com/amanda_hinch...

#AndroidDev #Android

The recording is now online: www.youtube.com/watch?v=oRKy...

If you wanna catch up with what's CLEARLY the most important, useful, and practical talk from KotlinConf... You can do it right here:

Building a macOS screen saver with Kotlin
www.youtube.com/watc...

Unit testing each class of a system in isolation sounds good in theory: It ensures each piece works on its own. The hard truth is that it’s a practice that normally produces almost no value 🤷‍♂️

But it is even worse: it creates a false sense of safety and swallows lots of time from developers 🧵

Heron client for the 🦋 app by @tunji.dev is a great example of advanced Compose UI work. One of those projects to bookmark and use as reference.

github.com/tunjid/heron