Show HN Daily Selection (2025-08-13)
- Building a web search engine from scratch with 3B neural embeddings
- Omnara – Run Claude Code from anywhere
- Doom port to pure Go – Gore
- Build agents directly in your notes and tables
- Tool I made for planning meals using produce that is in season near you
- Minimal Claude-Powered Bookmark Manager
- Turn your iPhone into a local OCR server using Vision Framework
- I built LMArena for Motion Graphics
- Nocturne – Your Car Thing's Second Chapter
- HackerNewsGames [Alpha]
- I built a browser AI to use GPT‑OSS locally (no server)
- Sarpro – Fast Sentinel-1 SAR GRD → GeoTIFF/JPEG in Rust
- Move to dodge the bullets. How long can you survive?
Building a web search engine from scratch with 3B neural embeddings [Developer Tools]
290 points, 51 comments
A web search engine built from scratch using 3B neural embeddings.
- Built entirely from scratch
- Utilizes 3 billion neural embeddings
- Focuses on web search functionality
Discussion Link, Original Link
Omnara – Run Claude Code from anywhere [Developer Tools]
191 points, 83 comments
Omnara is an agent command center that enables seamless control of Claude Code sessions across terminal, web, and mobile platforms.
- Launch and manage Claude Code sessions from terminal, web, or mobile
- Real-time synchronization of sessions across devices
- Push notifications and clean UI for interactions
- Open-source backend with CLI wrapper for native Claude Code experience
- Supports human-in-the-loop workflows beyond Claude Code
- Free tier available with paid plans for unlimited sessions
Discussion Link, Original Link
Doom port to pure Go – Gore [Developer Tools]
5 points, 0 comments
A pure Go port of the classic Doom engine, based on a C-to-Go translation of Doom Generic, aiming for a clean and portable implementation.
- Loads original WAD files
- Uses a software renderer with no external dependencies (no SDL or CGO)
- Includes a terminal-based renderer for experimental gameplay
- Cross-platform and Go-native, designed for readability and hackability
- Minimal unsafe code, with ongoing efforts to eliminate it
Discussion Link, Original Link
Build agents directly in your notes and tables [Productivity]
3 points, 0 comments
A workspace for focus work and multitasking by integrating AI agents directly into notes and tables.
- Combines notes, AI chat, and object-based data tables in a split-screen interface
- Allows defining agents with plain-language instructions and trigger conditions
- Automates workflows like content creation and email responses within the workspace
- Supports experimentation with templates for task automation
Discussion Link, Original Link
Tool I made for planning meals using produce that is in season near you [Life Assistant]
3 points, 2 comments
Plan meals using locally in-season produce.
- Uses seasonal produce data for your location
- Helps with meal planning based on availability
- Supports local and sustainable eating habits
Discussion Link, Original Link
Minimal Claude-Powered Bookmark Manager [Productivity]
3 points, 0 comments
Minimal bookmark manager powered by Claude.
- Claude-powered
- Minimalist design
- Bookmark management
Discussion Link, Original Link
Turn your iPhone into a local OCR server using Vision Framework [Developer Tools]
3 points, 2 comments
Turn your iPhone into a local OCR server using Apple's Vision Framework.
- Runs a local OCR server on iPhone via Apple's Vision Framework
- Provides a REST API endpoint accessible from any device on the same network
- Processes everything locally, no cloud services required
- Available on the App Store under "OCR Server"
Discussion Link, Original Link
I built LMArena for Motion Graphics [Video]
7 points, 3 comments
Motion-graphic comparison website using AI models for video production, rendered via Remotion.
- Compares motion graphics using AI models
- Rendered with Remotion
- Aims to explore AI's role in video production
Discussion Link, Original Link
Nocturne – Your Car Thing's Second Chapter [Consumer Tech]
3 points, 0 comments
Nocturne 3.0.0 is a custom firmware replacement for Spotify's discontinued Car Thing, offering enhanced functionality and reducing e-waste.
- Bluetooth tethering for car use (no Raspberry Pi required)
- Full graphics acceleration
- Native Spotify login (no client ID/secret)
- Start DJ and podcast support
- Gesture control and auto brightness
- Multi-language support (Japanese, Chinese, Arabic, etc.)
- Local file and preset button support
- OTA updates and Spotify Connect device switching
- Status bar, lock screen, and DJ preset binding
- Spotify mixes (Discover Weekly, daily mixes) in Radio tab
Discussion Link, Original Link
HackerNewsGames [Alpha] [Entertainment]
3 points, 1 comments
A manually curated catalog of games created by the Hacker News community, with open-source code and data.
- Collects and organizes games shared on Hacker News
- Open-source project with data available on GitHub
- Currently includes games up to 2022, with plans to expand
- UI/UX partially developed using LLMs for efficiency
- Provides two accessible browsing links for the catalog
Discussion Link, Original Link
I built a browser AI to use GPT‑OSS locally (no server) [Developer Tools]
3 points, 0 comments
A browser extension for local AI-powered page summarization, translation, and chat using GPT-OSS via Ollama, with optional OpenAI API integration.
- Runs GPT-OSS locally via Ollama, keeping data on-device
- Optional OpenAI API key support for GPT-5
- No backend servers required (except when using GPT-5)
- Supports text summarization, translation, and chat
- Open-source and privacy-focused
Discussion Link, Original Link
Sarpro – Fast Sentinel-1 SAR GRD → GeoTIFF/JPEG in Rust [Image]
3 points, 0 comments
Fast Rust tool for converting Sentinel-1 SAR GRD products to GeoTIFF/JPEG with efficient processing.
- Open-source Rust-based solution for fast batch conversion
- Supports CLI, GUI, and Rust API integration
- Batch processing for multiple GRD files
- Synthetic RGB composition from polarization channels
- Autoscaling and padding for consistent image rendering
- Output options: GeoTIFF or JPEG
- Efficient performance (500MP image processed in 35 sec with low CPU usage)
Discussion Link, Original Link
Move to dodge the bullets. How long can you survive? [Entertainment]
51 points, 55 comments
Dodge bullets to survive as long as possible in this simple game.
- Dodge incoming bullets to stay alive
- Test reflexes and reaction time
- Minimalist gameplay design