Architecture as a Cost Lever: Cutting Build Times by Splitting a KMP Monolith
Build time is a tax you pay twice: once on every engineer's attention each time they wait, and again on the CI bill every time a pipeline rebuilds the…
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Giving an AI Agent Hands on Bluetooth: an MCP Server in Kotlin/Native
Almost every Model Context Protocol (MCP) server you'll find wraps a web API — GitHub, a database, a SaaS tool. They give a language model new informa…
Production Android Auth: OAuth2, PKCE & KeyStore Security
Most Android authentication tutorials stop at “getting the token”. But in real production systems (especially fintech apps), that’s just the beginning…
Книга: «System Design. Проектирование мобильных систем. Подготовка к сложному интервью»
Привет, Хаброжители! Что вас ждет на интервью по проектированию мобильных систем (MSD)? Что делать, если вас попросят разработать новый YouTube или те…
Gradle под капотом: как перестать страдать и заставить сборку летать
Привет, Хабр! На связи «Исходный Код». Сегодня разбираем инструмент, который мы все запускаем по сто раз на дню, но часто воспринимаем как черный ящик…
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, …
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…
Технический гайд по сторис – часть 4: как мы добавили видео формат
Привет! Меня зовут Владислав Фальзан, я работаю android-разработчиком в М2. Наша команда мобильной разработки развивает приложение – онлайн-платформу …
От идеи до работающего Android-приложения: мой опыт vibe-кодинга для реального pet-проекта
По профессии я руководитель в ИТ. Когда-то давно кодил на Basic, Pascal и Delphi (диплом писал на нём же). Но с тех пор много воды утекло, и за соврем…
Переезд с XML на Jetpack Compose на проде: базовые классы, архитектура, сложности и готовые решения
Меня зовут Родион, и я уже около 2,5 лет работаю в VK Android-разработчиком в крупном многомодульном проекте с сотнями экранов и довольно большой ауди…
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…
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…
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 …
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 …