The landscape of mobile development is shifting beneath our feet. For years, "Smart Apps" were simply thin clients for powerful cloud APIs. If you wanted to understand the sentiment of a sentence or find similar documents, you packaged a JSON request, sent it to a server, and waited for a response. But the era of the "Cloud-First" mandate is being challenged by a new priority: Privacy-Centric, Low
If you've spent any time doing Android development from the command line, you know the rhythm: adb devices, adb logcat, adb shell, repeat. It works, but it's friction — switching between windows, retyping device serials, manually grep-ing through logcat noise. padb is a Python-based terminal UI that wraps all of that into one interactive session. No GUI required, no Android Studio open in the back
This article is an AI-assisted translation of a Japanese technical article. In April 2026, Amazon Bedrock AgentCore added a new capability called Optimization, which takes real agent traces and proposes prompt improvements based on them. https://aws.amazon.com/about-aws/whats-new/2026/05/bedrock-agentcore-optimization-preview/ In this article, I apply AgentCore Optimization to a Strands Agents-as-
DynamoDB Global Tables replicate data across regions in seconds, but replication is still asynchronous. That means a simple read from a replica region can occasionally return stale data, which is acceptable in most application as the user doesn’t require the latest available data all the time, but in some systems, stale reads can break important processes and stability of a platform. So the questi
Most AWS security setups focus heavily on inbound traffic. But outbound is often left open. Security Groups. NACLs. Maybe WAF. But outbound traffic often gets far less attention — and that’s where problems begin. Every outbound request starts with a DNS query. Before your application connects anywhere, it first resolves a domain name. That step is easy to ignore, but it’s where a lot of risk begin
TL;DR: I built the same browser agent twice — once with 500 lines of Python, once with 7 lines of JSON. The second one took 5 minutes. The agent harness layer is becoming the real competitive advantage, not the model. Last month, I built a browser automation agent. Playwright. Custom orchestration. Login handlers. Error retries. Session management. React-aware form filling. Anti-detection scripts.
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 detection. 3-tier inference engine: Gemma 4 LLM — context-aware classification LiteRT — fast pattern model Regex fallback — when battery low Full architecture write-up: https://rohitraj.tech/en/notes/build-on-device-ai-scam-detector-android-gemma Read
After getting frustrated with news apps designed to keep me scrolling forever, I built Trace - an Android app that aggregates news from 100+ sources and uses AI to create 30-second summaries. The app is free, no ads, no subscription. Just news that respects your time. The Problem Every morning I'd open Google News or Twitter and 30 minutes would vanish. Not because I was learning anything useful,