Staff SWE at @X | Co-Founder at https://xitter.cf/t.co/rGz0IAm8OP | Co-Author of #Kaspresso | Android GDE @GoogleDevExpert
London, UK
Joined November 2010
- Tweets601
- Following652
- Followers2.3K
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Evgenii Matsiuk retweeted
Hi X Android folks!
If you're on version 12.20+, you're now running the latest iteration of our new Android app. For context: for the last 8 months we were shipping two apps in a single binary, and that introduced some perf overhead. But shipping two apps in one was needed to make the switch to the new experience as smooth as possible for everyone.
With 12.20+ that overhead is gone. We ship a single app, built entirely on the new shiny kotlin + compose codebase.
This resulted in:
• 33% smaller app binary size
• 69% faster app startup
• Got rid of 3.15M lines of code from the OG app
What's next: we hear you on performance. It's our main focus right now - scroll smoothness, battery, networking and memory - and there's more coming.
Thanks for the patience and the feedback along the way - keep it coming!
Evgenii Matsiuk retweeted
New emu release v410:
- live view for multiple concurrent devices
- better tooling for foldables with hinge overlay support
- high refresh rates support (120hz anyone?)
- copying network req/res bodies
- huge perf optimizations
and more. Check out the blog post for more:
blog.marathonlabs.io/blog/em…
Evgenii Matsiuk retweeted
Today we're announcing the completion of one of the largest engineering projects in the company's history:
We rebuilt the X Android app from scratch
It's faster, smoother and more reliable. But most of all: it will enable us to build new features at lightning speed.
Evgenii Matsiuk retweeted
We've open-sourced Grok Build and have reset usage limits for all users.
Open sourcing Grok Build allows anyone to support making a reliable and robust harness. Check out our code, including the Git repo for the Grok Build CLI.
x.ai/open-source
Evgenii Matsiuk retweeted
Devtools don't have to be clunky. Android foldable devices in emu with animated transitions between states emu.marathonlabs.io/?utm_sou…
Evgenii Matsiuk retweeted
I'm dogfooding emu: building a native jellyfin client for music. One of the key features I need is android auto integration. After trying to figure out how to even do this locally, I understand why most apps don't have support for android auto. But now there's a better way
Evgenii Matsiuk retweeted
You don't wanna drive after a short 36h work-day? No problem, join xAI in London and take the tube home.
Check out the page below for more information about roles, perks, and the interview process.
x.ai/london/
Evgenii Matsiuk retweeted
Many new features in 𝕏 Chat, our new communications system that has replaced the old Twitter DMs.
It is also encrypted and enables audio/video calls and file transfers.
Evgenii Matsiuk retweeted
🚀 Speaker Alert! Learn #Entrepreneurship for Engineers with Evgenii Matsiuk @e_matsyuk, Android GDE & Staff Software Engineer at X, at #DevFestDubai 2025! Get your roadmap to launching your own company.
gdg.community.dev/events/det…
#DevFest #Startup
Evgenii Matsiuk retweeted
Dreaming of launching your own company? 🚀
Join Evgenii Matsiuk @e_matsyuk , Staff Software Engineer @ X, at Droidcon Abu Dhabi!
His session "Entrepreneurship for Engineers: How to Launch Your Own Company" will give you the roadmap to turn your engineering skills into a startup success. Don't miss out!
🔗 mobiledevelopersweek.com/
#MDW25 #dcabudhabi #Startup #Engineer
Evgenii Matsiuk retweeted
👤🟢 Welcome @e_matsyuk to Droidcon Italy 2025!
Staff SWE at X & Android Google Developer Expert 🇮🇹🎙️
🔎 “Entrepreneurship for Engineers: How to Launch Your Own Company”
You’re a skilled engineer but what comes next?
DC25 agenda: it.droidcon.com/2025/agenda/
If you’ve ever dreamt of building something on your own, this talk is your starting point. 🚀
Evgenii Matsiuk brings his experience from top tech and personal ventures to guide developers ready to make the leap into entrepreneurship.
👉🏻 Curious who else is speaking at #DroidconItaly25? Discover more → it.droidcon.com/2025/speaker…
📅 November 19–20, 2025
📍 Turin, Italy
#DroidconItaly #AndroidDev #TechEntrepreneurship #StartupForEngineers #EvgeniiMatsiuk #FromEngineerToFounder #BuildYourCompany #MobileDev #Droidcon2025 #GDE #CareerGrowth #TechLeadership
Evgenii Matsiuk retweeted
We understand that it's hard to believe in our coolness and exclusivity right away, so we decided to demonstrate our superiority in numbers.
Put your current mobile testing platform to the test — literally.
Marathon Labs offers a no-cost performance comparison against your existing stack.
Just fill out the form, and a senior engineer will reach out to coordinate the setup with your team.
Evgenii Matsiuk retweeted
Update! Now Marathon Cloud supports Maestro for iOS and Android!
As always, automatic balancing, parallelization, and execution of any number of tests in just 15 minutes are supported.
Friendly reminder that the first 50 hours of testing in Marathon Cloud are free!
Evgenii Matsiuk retweeted
🚀Faster test runs usually mean more tests, more infra, and more complexity. How do you scale #mobileCI/CD without breaking it? 🤔 On this TestGuild episode, @anton_malinskiy shares lessons on healthy CI growth, real devices, and #shiftleft done right. Tune in now. 👉testguild.com/podcast/automa… #TestGuildPodcast
Evgenii Matsiuk retweeted
🚀 Want to get started with CI/CD for your iOS apps but not sure where to begin? I’m hosting a FREE 1-hour webinar this September where I’ll show you how to build, test, and deploy your apps with CI/CD — live!
✨ Kindly sponsored by @Marathon_Labs_
👉 Save your spot: streamyard.com/watch/my73mjB…
Evgenii Matsiuk retweeted
👋 We’re at #STAREAST today!
Come to booth #57. We’d love to show you how teams use Marathon Cloud to run thousands of UI tests in under 15 minutes, with reliable results and a detailed report.
Stop by to chat, see a demo, or just nerd out about test automation!
#mobiletesting
Evgenii Matsiuk retweeted
Decompose 3.4.0-alpha04 is released!
👉 New predictive back animation from Android Vanilla Ice Cream and Baklava
👉 Improved the quality of scaling when performing predictive back animations
👉 Many other improvements and fixes
Release notes: github.com/arkivanov/Decompo…
Evgenii Matsiuk retweeted
𝕏 has now exceeded 1 billion downloads on Android alone!
And roughly 1.5 billion on iPhone.
