For high-throughput gRPC services, Go's garbage collector was once the silent killer of p99 latency—until Go 1.24 slashed stop-the-world (STW) pauses by 62% in our production benchmarks, cutting tail latency for 10k QPS services from 210ms to 79ms. ⭐ golang/go — 133,724 stars, 19,032 forks Data pulled live from GitHub and npm. Talking to 35 Strangers at the Gym (309 points) GameStop makes $5
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This section is the map for the rest of the book. The five stages introduced in the 1.1 chapter overview (parse, analyze/rewrite, plan, portal, execute) are traced here through the actual code: which functions implement each stage, and in what order they get called. The mechanics of each of the five stages are unpacked in later chapters. Here, only the skeleton matters: how a backend starts up, ho
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
PostgreSQL Internals · Chapter 1 Query Processing Suppose a client sends SELECT * FROM users WHERE id = 1. The path that single line travels before coming back as a result row is longer than you might expect. Inside the PostgreSQL backend, that SQL goes through a five-stage pipeline. Backend entry and dispatch. The backend receives the message from the client and decides which processing path it s
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
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,