Calendar API: Local Calendars, Cloud Sync, and Conflict Handling
PR #5413 adds com.codename1.calendar , a cross-platform API for local calendars and cloud providers. It covers events, tasks, recurrence, incremental …
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How to Verify a SHA-256 Checksum on Windows, macOS, and Linux
How to Verify a SHA-256 Checksum on Windows, macOS, and Linux You download an ISO, installer, archive, or release binary. The publisher provides a lon…
Termux App Store: A Community Package Manager for Termux on Android
If you use Termux on Android, you probably know the feeling: You find a useful command-line tool on GitHub, but then you have to figure out how to ins…
Port Support You Can Trace Back to a Green Test
“Supported on iOS, Android, desktop, and web” sounds useful until you need one method on one target. Does WebSocket work on watchOS? Which Linux archi…
I built a free full-stack auth starter so you can skip "auth week" (Flutter + FastAPI)
Every side project I've started died a little during the same seven days: auth week. You know the drill. Login screen, register screen, forgot passwor…
I Built (Almost) My Whole Play Store Listing Without Opening Figma — Here's the Free Tool That Did It
If you've ever shipped an app to Google Play, you know the feature graphic dance: open Figma, make a 1024×500 canvas, flatten it, export, upload, get …
I thought desktop copilots would win, then I tried building agents on Android
I used to assume the obvious home for AI agents was the desktop. Chrome extension. Sidebar copilot. Local app with a command bar. Maybe a browser auto…
Beyond the .tflite File: The Architect's Guide to Shipping High-Performance Edge AI on Android
If you think shipping AI to an Android device is as simple as dropping a .tflite file into your assets folder and calling a predict() method, you are …
Why Child Safety Tracking Should Never Be Paywalled
Some features should never be locked. Child safety is one of them. That belief shaped WIN RAK from day one. A Real Scenario A father and son are visit…
Beyond the Inference Time: A Deep Dive into Real-Time NPU Latency Visualization on Android
You’ve optimized your model. You’ve pruned the weights, applied quantization, and selected the perfect architecture. But when you deploy your Edge AI …
Error Analysis
To learn how to analyze an error, we are going to use the error below as an example: nx run mobile : android ✔ 7 / 7 dependent project tasks succeeded…
# 🚀 Introducing HEX ROOT SCAN: A Mobile Security Toolkit for Android ## A modern security workspace built for Android researchers and developers
Today I want to introduce HEX ROOT SCAN , an Android security toolkit designed to bring advanced analysis capabilities directly to mobile devices. The…
Beyond FP32: The Android Developer's Guide to High-Performance Custom Quantized Model Integration
In the world of mobile development, we are constantly fighting a war on two fronts: the demand for increasingly "intelligent" features and the rigid c…
How We Beat HotSpot Performance (By Cheating, But Not Like That)
No, we didn't cheat in the benchmark. At least I hope we didn't. Every optimization in this story was gated on bit identical output checksums against …
Whisper on Mobile Is Better Than I Expected, So I Built an Offline Notes App
I expected offline speech to text on mobile to be too slow, too heavy, or too unreliable for a real app. After testing Whisper locally on Android, I c…
Building Recourse.ai: A Parametric Insurance Prototype for the Age of Agentic AI
Every enterprise I've talked to in the last year has the same story: AI agents are being deployed faster than risk and compliance teams can review the…
Pixels to Predictions: Building High-Performance Edge AI Pipelines with CameraX and TFLite
You’ve built a machine learning model. It’s accurate, it’s lightweight, and it works perfectly on your desktop. But the moment you port it to an Andro…
Architecting for 100% Offline: Handling Android Geofencing Without Play Services
It was the second day of my cousin’s wedding. The ceremony was intimate, set in a quiet, traditional hall where silence wasn’t just requested—it was e…
Mastering Edge AI: How to Build High-Speed Vision Analyzers on Android
In the world of Deep Learning, there is a fundamental, almost violent tension: the computational greed of neural networks versus the strict, unforgivi…
Running a 1.5B-Parameter LLM Entirely On-Device for Mental Health — The NilaMind Architecture
How I built a mental health companion that never connects to the internet, and why the most important safety decisions have nothing to do with the AI.…
The 16.67ms Race: Mastering Real-Time 60 FPS Video Segmentation on Android
Imagine you are building the next generation of Augmented Reality (AR) glasses or a professional-grade video editing tool for Android. The user holds …
Architecting Location-Based Automation Without Killing the Battery
Opening hook It happened during a quiet afternoon in the library. I was deep in a documentation sprint, and the only sound was the rhythmic tapping of…
Stop Moving Pixels: Mastering Zero-Copy Image Processing for High-Performance Edge AI
You’ve spent months optimizing your neural network. You’ve pruned the weights, quantized to INT8, and selected the most efficient architecture for you…
Architecting a background-controlled sound manager that actually survives Doze mode
It happened during a lecture. I was sitting in the front row, taking notes on my tablet, when my phone started vibrating against the wooden desk. The …
Breaking the Abstraction Tax: Mastering Custom C++ Operations for High-Performance Edge AI on Android
In the modern Android ecosystem, we have become accustomed to the incredible productivity of Kotlin and the safety of the JVM. For standard applicatio…
Architecting Location Based Automation without Killing Android Battery Life
It happened during a quiet afternoon at the library. I was deep into a debugging session when my phone suddenly blared a loud, upbeat notification rin…
Hello World! 👋 I'm Pablo, Android Dev & Creator of Aura Finance
Hi everyone! 👋 I’m Pablo Martín, a Mobile Engineer and Android Architect based in Spain. For over 5 years, I’ve been building, scaling, and leading na…
🔥 I Built an ESP32 Smart Bike Control System with an Android App (Open Source)
🚀 I Built an ESP32 Smart Bike Control System with an Android App (Open Source) What if your motorcycle could become a smart vehicle without replacing …
Apple TV And Android TV: One Codebase, And CSS @media For The Living Room
This is the Tuesday follow-up to Friday's funding open source without the bait and switch , and it picks up right where last week's Apple Watch port l…
Stop Killing Your Battery: The Ultimate Guide to Android Edge AI Quantization (INT8 vs. FP16)
If you have ever tried to run a massive Large Language Model (LLM) or a high-resolution computer vision model directly on a mobile device, you’ve like…