The Sleeper Announcement from Google I/O 2026 That Will Change How We Think About Apps
This is a submission for the Google I/O Writing Challenge Everyone walked away from Google I/O 2026 talking about Compose First, Gemini integrations, …
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AccessLens — a blind person's lanyard, powered by Gemma 4 on-device
This is a submission for the Gemma 4 Challenge: Build with Gemma 4 What I Built AccessLens is an Android app that turns a Pixel 8 worn on a lanyard in…
R8 Minification Silently Killed My Android App's Core Feature (And Tests Didn't Catch It)
My CI pipeline was green. Unit tests passed. The APK built and signed without errors. I installed it on my Pixel 3. The app launched, looked perfect. …
Keccak256 From Scratch in 200 Lines of Kotlin (Because Web3j Was 8 MB)
Web3j is 8 MB. My APK is 4.5 MB. So I wrote the Ethereum hash function from scratch. Why Not Just Import Web3j? I was building a native Ethereum walle…
JetBrains Just Changed KMP Structure. Here's What They Didn't Tell You.
JetBrains announced a new default project structure for KMP. Two shared modules — sharedLogic and sharedUI — plus separate application modules for eac…
Chris Banes' Skills Repo: Claude Code Meets Android Development
Last week Chris Banes — yeah, that Chris Banes from the Android team at Google — published a public repo of Claude Code skills targeting Kotlin, Jetpa…
PdfKmp 1.0 — A Kotlin Multiplatform PDF Library for Android and iOS
Built specifically for Kotlin Multiplatform PdfKmp is a KMP-first library. The DSL, the layout engine, and the document model all live in commonMain .…
I built a Kotlin DSL test automation framework because existing ones kept failing their own standards
Tags: #testing #kotlin #opensource #cicd Many test automation frameworks don't meet the engineering standards they're supposed to uphold. I say that h…
Optimizing the Edge: Advanced AV1 Implementation for Android TV in 2026
The 2026 Context: From "Testing" to "Triage" In my previous post, I discussed why AV1 is no longer optional for Fire TV Stick 4K Max users. But as we …
Stop Fighting Your State. Reduce And Conquer It.
MVVM seemed simple. Then you added ten MutableStateFlow properties to your ViewModel. MVI promised purity. Then you wrote a middleware for side effect…
Three Stabs at a Typed Schema DSL in Kotlin
Imagine a D&D character sheet. It has typed fields (Strength 1 to 18, Class is Fighter or Wizard or Rogue) and rules between them (Halflings can't…
I Couldn't Find a Rolling Text Library for Compose, So I Built One
A small library, a long journey through Compose animations, and a few bad ideas along the way. The Itch I work on a crypto-banking app. Crypto prices …
Adding Cross-Module Routing to Navigation 3 with KSP: nav3-helper Design and Usage
One important change in Compose Navigation 3 is that navigation state is back in the developer's hands. That may not sound like a big deal at first, b…
How I built GitHub Store to 12,500 stars in 6 months — I started at 16
Six months ago I was a 16-year-old in Uzbekistan trying to ship a small Android app I'd built. The Play Store process was so heavy for what the projec…
Kotlin 2.0 vs Python 3.13: The Definitive Guide to benchmark in Production
Kotlin 2.0 vs Python 3.13: The Definitive Guide to Benchmarking in Production With Kotlin 2.0’s stable K2 compiler and Python 3.13’s experimental free…
All You Need Is Lambdas: Java Tests Without a Mocking Framework
Most Java developers have written something like this. Maybe recently. @Test void should_categorize_new_transactions () { final var mockRepository = M…
New ImagePickerKMP API: The easiest way to handle Camera and Gallery in Kotlin Multiplatform
Handling camera and gallery in Kotlin Multiplatform has always been difficult. Different APIs for Android and iOS. Permissions everywhere. State manag…
Building an On-Device AI Scam Detector for Android — Gemma 4 + LiteRT
Originally published on rohitraj.tech UPI fraud hit ₹805 cr in India last year. Cloud APIs leak data. So I built ScamRakshak — fully on-device scam de…
Advanced MVVM in Jetpack Compose: Search, Pagination & Cross-Module Triggers
User types "android" into your search box. That's 7 API calls if you wired it the way I did the first time. A few months later I shipped a pagination …