BlogViral

Show HN: CryDecoder – On-device ML for classifying baby cries (Swift, Core ML) Hi HN, I’m the developer behind CryDecoder. I built this after too many nights at 3am staring at a crying infant, completely exhausted, trying to guess whether it was hunger, gas, or just general fussiness. I realized I was essentially running a mental decision tree on very little sleep, so I decided to see if I could automate some of that signal processing. What it does: CryDecoder analyzes short audio clips of a baby’s cry and classifies them into categories like hunger, discomfort/gas, tiredness, or general fussiness. How it works: • Tech: On-device audio feature extraction paired with a lightweight ML model trained on labeled cry patterns. • Performance: Inference runs locally on the phone, which keeps latency low and avoids sending audio off-device. Results come back quickly enough to feel near real-time. • Philosophy: This isn’t meant to replace parental judgment. It’s intended as an extra data point —...

Show HN: Text-to-3D Motion Generator (Hunyuan 1.0 wrapper) Hi everyone, I built a UI for the new open-source Hunyuan Motion model to generate 3D animations from text: https://hy-motion.ai It generates BVH files instantly. I'm trying to bridge the gap between "cool AI demo" and "useful game dev tool". Question for 3D devs/animators: If you were to use this in production, what is the single biggest missing feature? 1. Export Pipeline: Auto-conversion to FBX for Unity/Unreal? 2. Motion Fusion: Blending multiple prompts into one long sequence? 3. Rig Variety: Support for non-humanoid skeletons? Feedback is much appreciated. https://hy-motion.ai/ January 2, 2026 at 10:56PM

Show HN: Startboard – A simple little browser start page and bookmarks organizer https://startboard.so/ January 2, 2026 at 11:26PM

Show HN: Feature detection exploration in Lidar DEMs via differential decomp I'm not a geospatial expert — I work in AI/ML. This started when I was exploring LiDAR data with agentic assitince and noticed that different signal decomposition methods revealed different terrain features. The core idea: if you systematically combine decomposition methods (Gaussian, bilateral, wavelet, morphological, etc.) with different upsampling techniques, each combination has characteristic "failure modes" that selectively preserve or eliminate certain features. The differences between outputs become feature-specific filters. The framework tests 25 decomposition × 19 upsampling methods across parameter ranges — about 40,000 combinations total. The visualization grid makes it easy to compare which methods work for what. Built in Cursor with Opus 4.5, NumPy, SciPy, scikit-image, PyWavelets, and OpenCV. Apache 2.0 licensed. I'd appreciate feedback from anyone who actually works with eleva...

Show HN: DroidDock – Browse Android files on Mac with a Finder-like experience Show HN: DroidDock – Browse Android files on Mac with a Finder-like experience DroidDock is a macOS app that allows you to browse files on your Android device via ADB. Built with Tauri (Rust + React). Core features: - Browse files with Table, Grid, or Column views - Preview images/text without downloading (press Space) - Full keyboard navigation - Search, upload/download, multi-select - Dark mode support What's New in v0.2.x - File Previews : Press Space to preview images/text without downloading - Minimalist UI : Clean 95% grayscale design with better readability - Clickable Sorting : Click column headers (Name, Size, Date) to sort - Kind Column : Shows file types at a glance (Image, Video, Document, etc.) - Better Keyboard Navigation : Arrow keys in preview, Cmd shortcuts for everything Tech Details Built with Tauri (Rust backend) + React/TypeScript frontend. Rust handles all ADB communication for good...

Show HN: Fleet / Event manager for Star Citizen MMO I built an open-source org management platform for Star Citizen, a space MMO where player orgs can have 50K+ members managing fleets worth millions. https://scorg.org The problem: SC's official tools won't launch until 2026, but players need to coordinate now - track 100+ ship fleets, schedule ops across timezones, manage alliances, and monitor voice activity during battles. Interesting challenges solved: 1. Multi-org data isolation - Users join multiple orgs, so every query needs scoping. 2. Canvas + Firebase Storage CORS - Couldn't export fleet layouts as PNG. Solution: fetch images as blobs, convert to base64 data URLs, then draw to canvas. No CORS config needed. 3. Discord bot - Built 4 microservices (VoiceActivityTracker, EventNotifier, ChannelManager, RoleSync) sharing Firebase state. Auto-creates channels for ops, cleans up when done. Features: role-based access, event calendar with RSVP, LFG matchmaking, drag-and-d...