Grand Canyon Sunset www.curious-creature.com/posts/2026/g...

Alone in Tokyo X www.flickr.com/photos/romai...

My "No Graphics API" blog post is live! Please repost :) www.sebastianaaltonen.com/blog/no-grap... I spend 1.5 years doing this. Full rewrite last summer and another partial rewrite last month. As Hemingway said: "First draft of everything is always shit".

Who wakes the knocker uppers?! A post on how to validate that the tool that is meant to download your Gradle distribution is actually built by Gradle and not by a too friendly malicious contributor! www.liutikas.net/2025/12/12/K... #gradle #security

You shared that androidx libraries are constantly in alphas and we listened. In the past two years while adding a ton of new libraries we actually increased the percentage of libraries that are complete or actively developed. The combo of these two groups went from 64% to 76%. #androidx #androiddev

After nine years of development, meshoptimizer has reached its first major version, 1.0! This release focuses on improvements in clusterization and simplification as well as stabilization. Here's a release announcement with more details on past, present and future; please RT! meshoptimizer.org/v1

New blog post on how to detect tap on arbitrary shapes with Jetpack Compose, and in general how to easily check if a given set of coordinates is contained inside a path. www.romainguy.dev/posts/2025/a...

So glad this is finally out! androidx.webgpu brings the WebGPU API to Android developers. Having access to a modern GPU API in Kotlin without dealing with the OpenGL legacy nor the complexity of Vulkan is exciting! developer.android.com/jetpack/andr...

New blog post on how to render beautiful soft shadows projected by the user's finger with Jetpack Compose. www.romainguy.dev/posts/2025/f...

Funding: if your mid/large business uses Dear ImGui - and maybe you are approaching end of year budget/planning etc. - please consider reaching out (PM/email) so I can help you help Dear ImGui !

Perfetto performance traces can be very intimidating. A talk by perf wizard @rahulrav.com makes it a tiny bit less scary. youtu.be/WJHNBN_19F8?... #performance #android

we’re hiring on the app architecture team! if you’re interested or have questions about the work or the team, feel free to reach out. #AndroidDev

Also, watch this interview about how she ported Doom to 3DO on her own, the story is both hilarious and a testament to her genius. youtu.be/rBbIil2HPSU?...

That's pretty cool, maps.google.com seems to be using Filament now. I found its symbols in the WASM file used by the site.

Ueno, Tokyo

Here's the slides for our #dcldn25 talk on #RemoteCompose speakerdeck.com/camaelon/dro... Thanks to everyone that attended, it was great to finally share this project :) Kudos to the droidcon organizers, this was a really smooth event, and it was neat to see old friends! @hoford.bsky.social

Come see @hoford.bsky.social and I in London next week -- we have some cool stuff to show off :-) #RemoteCompose: an #AndroidX framework to project rich, animated #UI from apps or servers onto remote surfaces. #dcldn25

I made plot-benchmarks (a tool to view and compare AndroidX Benchmark Results) public. androidx.dev/benchmarks/p... Simply drag and drop the benchmark JSON to the page, and you can start plotting and comparing ! The souce code for the app is here: cs.android.com/androidx/pla...

Sunrise at Mount Fuji

Would you like to work on Compose at Google (Mountain View CA office)? Apply here and let's work together www.google.com/about/career...

I've just released a 4Kb procedural gfx at Deadline demo party! www.pouet.net/prod.php?whi...

Foggy Night — Tokyo, Japan

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...