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Google just made it a policy violation for your app to lie to an AI agent

Google just made it a policy violation for your app to lie to an AI agent

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4 min read
Building an Android AI Agent, Part 12: AgentContext — Knowing What the User Is Doing Before They Ask

Building an Android AI Agent, Part 12: AgentContext — Knowing What the User Is Doing Before They Ask

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3 min read
Design a Stock Trading App: A Mobile System Design Walkthrough

Design a Stock Trading App: A Mobile System Design Walkthrough

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7 min read
Design WhatsApp: A Mobile System Design Walkthrough

Design WhatsApp: A Mobile System Design Walkthrough

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9 min read
Bill import without a bank login: parsing statements you already own

Bill import without a bank login: parsing statements you already own

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4 min read
I Built an Android AI Assistant That Doesn't Need the Cloud

I Built an Android AI Assistant That Doesn't Need the Cloud

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4 min read
Why I Built Effera: A Watermark-Free Android Video Editor with Live Touch Motion

Why I Built Effera: A Watermark-Free Android Video Editor with Live Touch Motion

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2 min read
Russian letters in Ukrainian app translations: mostly not copy-paste

Russian letters in Ukrainian app translations: mostly not copy-paste

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2 min read
~2MB to give your Android app WorkBuddy-like agent powers

~2MB to give your Android app WorkBuddy-like agent powers

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5 min read
5 GPSmyCity Alternatives Compared in 2026, Including the One I Built

5 GPSmyCity Alternatives Compared in 2026, Including the One I Built

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7 min read
How to Pass Google Play’s 12-Tester Requirement for Free

How to Pass Google Play’s 12-Tester Requirement for Free

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3 min read
QR Kot – a privacy-first QR code generator and scanner for Android

QR Kot – a privacy-first QR code generator and scanner for Android

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1 min read
Inside the Compose Slot Table: Positional Memoization, Gap Buffers, and the Bugs They Cause

Inside the Compose Slot Table: Positional Memoization, Gap Buffers, and the Bugs They Cause

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7 min read
I built MANIX Social, a lightweight photo, reels and chat app for budget Android phones

I built MANIX Social, a lightweight photo, reels and chat app for budget Android phones

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2 min read
'Version Code Has Already Been Used' on Google Play: Fix

'Version Code Has Already Been Used' on Google Play: Fix

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3 min read
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