If you're still using an Atari ST, @pixelflinger.bsky.social wrote a Y2K fix for you: github.com/pixelflinger...

I tried my hand at making a video codec. I didn't know the first thing about video codecs when I started, so was quite fun to learn about the concepts and how to implement them. I packaged the result in a stb-style, single-file header-only lib, < 2500 loc with no dependencies.

wave_tracer 0.1 released wavetracer.dev wave_tracer combines path tracing and wave optics in a novel way, for practical general-purpose wave simulations across a variety of EM modalities and applications.

Some news to share - Today is my last day at Google. It's been almost 8 years now since I was offered what was basically my dream job at the time: reimagine Android's UI Toolkit. Working on Compose has been incredibly rewarding, and now it is time for what is next.

meshoptimizer v0.25 is out! Featuring new simplification function that optimizes positions and attributes for appearance, experimental permissive mode to simplify faceted regions with selective seam preservation, regularization option for improved tessellation quality and deformation, multiple ...

Combining path animations and cube rotations for this magical reveal effect ✨ #JetpackCompose #shipaton #buildinpublic

I have capacity for maybe 1 casual mentee. If you are a junior dev in Android/Build/Tooling space and you are serious about wanting some advice/tips, reach out!

Compose 1.9 also introduces some tooling updates! There's experimental support for Composable stack traces when source information is present, and we are planning to support apps minified by R8 in the future releases

Jetpack Compose 1.9 is out and comes with a lot of great new APIs: outer/inner shadows, new visibility modifiers, a new prefetching behavior to improve scrolling performance in lazy layouts, etc. android-developers.googleblog.com/2025/08/what...

= 32 bits after 32 years = We're incredibly proud to announce that Second Reality has now been finally ported to a modern operating system, and you can watch it tear up your system: no video, no emulation, just code - as it should be. conspiracy.hu/files/w32nd_... github.com/ConspiracyHu...

Shreyas Patil wrote a nice article about Pausable Composition! We have been working on designs for this feature for quite a while until Leland asked "Why don't we just skip?". Ben Tengrove did a prototype to prove it would work and voila a feature is born. blog.shreyaspatil.dev/exploring-pa...

If you’ve never read her 1978 interview with Art Bell(?) for Playboy(??) about being trans it’s very good btw www.digitaltransgenderarchive.net/files/nv9352...

Auto-dubbed videos on YouTube got worse. If I download an auto-dubbed video to watch offline, the original language is unavailable. YouTube doesn’t let you list languages you understand. One day Google will understand that some folks speak more than one language…

Playing around with the UI for fun. Designing such micro-interactions and animations is a breeze thanks to Compose. P.S. If you didn't catch it, a full vinyl rotation takes exactly 1800ms. That's 33 RPM 🎶💿

Vector/path rendering (directly using drawing APIs or formats like SVG) is incredibly powerful. But don't forget that sometimes a simple bitmap is the easiest, cheapest, fastest, and overall best solution 😀

Yesterday was my last day at Google. What started as a 2-year Green Card journey became 11 amazing years & meeting incredible people. So many great memories from creating Jetpack to adopting Kotlin. 10/10, would do it again. It is time to move on though, try new challenges and learn new stuff!

Indeed, we improved every parts of ADB Wifi pipeline. Besides support in Studio, you need ADB 36.0.1 (to be released soon) and Android 16.

Today, we've released a brand new Jetpack library - Navigation3! A pure Compose, state based navigation library: android-developers.googleblog.com/2025/05/anno...

I wrote about my retro winter adventure where I built my childhood dream PC fabiensanglard.net/2168.

New blog post, in which I show a real-world Kotlin example of manual inlining/merging computations to improve performance: www.romainguy.dev/posts/2025/m...

New blog post! In this post I explain some of the techniques used to eliminate unnecessary array bounds checks when writing Kotlin code. www.romainguy.dev/posts/2025/e...

Seeing so many folks enjoy Clair Obscur: Expedition 33 makes me wish, once again, that La Horde du Contrevent was translated in English. The game was clearly inspired (among other things) by that book.

Bliss www.flickr.com/photos/romai...

I haven't enjoyed an RPG as much as Clair Obscur: Expedition 33 in a long time. I can't help but feel this is what Final Fantasy XVI and maybe XV could/should have been.

富士山 www.flickr.com/photos/romai...

Kinship Full resolution version at www.flickr.com/photos/romai...

Someone was asking on the kotlinlang Slack how to compute the area of a Path in Jetpack Compose. Here's an extension function you can add to your project to do this: gist.github.com/romainguy/48...

Tranquility, Shirakabako #Photography

🚀 Big news for Android devs using Jetpack Compose! Media3 just dropped version 1.6.0, and it includes a brand new artifact: media3-ui-compose! Finally, seamless and customizable video playback directly in your Compose apps. 🎬 #AndroidDev #JetpackCompose #Media3

Pals, Shibuya, Tokyo. #Photography www.flickr.com/photos/romai...

Forgot to post about this last week, but we have a new episode of ADB up where we delve into Compose performance with @intelligibabble.bsky.social and @chuckjaz.bsky.social (and of course @romainguy.dev ) There are a lot of cool optimizations on the way! www.youtube.com/watch?v=Fr_e...

@intelligibabble.bsky.social and I discuss Compose performance on the Android Developers Backstage podcast with @tornorbye.bsky.social and @romainguy.dev Check it out.

Ugh, Bluesky doesn't preserve color profiles.

Under a Bridge www.curious-creature.com/posts/2025/u...

First day unemployed and my wife is already scared by the projects I start when I have time and energy 😂

Today is my last day at Google. I joined as an intern almost 18 years ago, and it still feels like it was yesterday. I'm incredibly grateful that I got to work with so many amazing and talented folks, but I'm also excited to try something new. First step: a few months of travel and photography :)

I wrote an article to explain why FastDoom is fast: fabiensanglard.net/fastdoom/ind....

If you're running Macrobenchmark tests to compute interaction latencies, you should check whether the distribution of results is a normal distribution. If it's not normal, compare outlier traces with traces that are close to the median and you will find systemic perf issues! Thread 🧵 #AndroidDev

First light www.curious-creature.com/posts/2025/f...

Alone www.curious-creature.com/posts/2025/a...

Quiet Night II www.curious-creature.com/posts/2025/q...

I'm excited about photography again. Let's hope it sticks for a while this time!

Been working on a new experimental Kotlin Multiplatform Tracing library capable of emitting Perfetto compatible traces. Currently supporting Android and JVM with the goal of eventually supporting other platforms. Here is the README if you want to try it out. github.com/androidx/and...

Fall Sunset — La Sal Mountains, Utah www.curious-creature.com/posts/2025/f...

The Android UI & Jetpack Compose team is building a new team in Bengaluru! Join us in building exciting new APIs for Jetpack Compose as well as the other UI libraries and help us expand to Bengaluru. EM: goo.gle/4gt9dMl SWE: goo.gle/4dQb9w7 PM: goo.gle/compose-pm-in DevRel: goo.gle/3DE8B7T

Our new ADB podcast episode covers the ten year anniversary of Android Studio, where @ducrohet.bsky.social and Jamal Eason joined us to look back at the early decisions and highlights over the years: www.youtube.com/watch?v=IhP4... (J had to leave early so missed the thumbnail photo at the end)

✨ First video out now! Learn how to create delightful mesh gradients in #JetpackCompose Works on Android and #KotlinMultiplatform If you like the video, you can check out the code that made it, fully open source on GitHub (aka tell me how bad my code is, 😅). youtu.be/C7iq8m2dQOo

Android 16 will have some big changes around restricting orientation and aspect ratio by respecting the user's preferred orientation in more cases. Apps can no longer rely on assuming they have a specific aspect ratio to render in. For more details: android-developers.googleblog.com/2025/01/orie...