Show HN Daily Selection (2025-05-16)
- Min.js style compression of tech docs for LLM context
- Real-Time Gaussian Splatting
- Undetectag, track stolen items with AirTag
- Heygem AI – An Open Source, Free Alternative to Heygen AI
- Kudos.wiki – Discover the best movies on Wikipedia
- Turn OpenAPI documents to LLM friendly Markdown
- Wordleish Spinoff for Economics
- Playmaker – Vibe marketing, powered by deep-research
- YapCards (iOS) – Voice-driven flashcards with AI feedback
- Internet Archive File Browser
- Booktranslate.ai – Recursive AI Translation Engine for Full Books
- Sauron MCP – one MCP to rule them all
Min.js style compression of tech docs for LLM context [Developer Tools]
149 points, 40 comments
Min.js style compression of tech docs for LLM context.
- Compresses technical documentation for efficient LLM context usage
- Uses Min.js style optimization techniques
Discussion Link, Original Link
Real-Time Gaussian Splatting [Developer Tools]
120 points, 44 comments
LiveSplat converts RGBD camera streams into real-time Gaussian splat scenes using a feed-forward neural network.
- Processes RGBD frames into Gaussian splats via neural network
- Renders splats in real-time
- Includes demo video for visualization
Discussion Link, Original Link
Undetectag, track stolen items with AirTag [Consumer Tech]
67 points, 69 comments
A device that makes AirTags undetectable by turning them on/off at intervals to track stolen items without alerting thieves.
- Turns AirTag on/off at specific intervals to avoid detection
- Prevents thieves from discovering the hidden AirTag
- Reactivates after hours to reveal location
- Useful for tracking stolen property like cars
- Not foolproof but improves stealth tracking
Discussion Link, Original Link
Heygem AI – An Open Source, Free Alternative to Heygen AI [Video]
19 points, 1 comments
Heygem AI is an open-source, free alternative to Heygen AI for generating photorealistic AI avatar videos from photos and voice.
- No training required
- No watermark
- Runs locally on 8GB GPUs
- Supports 4K output
- Ideal for developers building AI avatar pipelines
- Built by the team behind duix.com
Discussion Link, Original Link
Kudos.wiki – Discover the best movies on Wikipedia [Entertainment]
14 points, 5 comments
Discover the best movies on Wikipedia.
- Curates top movies from Wikipedia
- Helps users find high-quality film recommendations
Discussion Link, Original Link
Turn OpenAPI documents to LLM friendly Markdown [Developer Tools]
5 points, 0 comments
Convert OpenAPI documents into Markdown format optimized for LLM processing.
- Transforms OpenAPI specs into LLM-friendly Markdown
- Simplifies API documentation for AI model consumption
- Enhances readability and usability for language models
Discussion Link, Original Link
Wordleish Spinoff for Economics [Entertainment]
3 points, 0 comments
A Wordle-style game where players guess economies based on clues, with a new economy featured daily.
- Players start with three clues and receive an additional clue after each guess.
- Includes six guesses per game.
- Clues combine hard data and unusual economic trivia.
- Daily updates with a new economy to guess.
- Available at economyguesser.com.
Discussion Link, Original Link
Playmaker – Vibe marketing, powered by deep-research [Marketing]
6 points, 1 comments
Playmaker helps founders and GTM teams execute faster by generating tailored campaign ideas and tool stacks.
- Auto-discovers business info using just an email
- Generates unique campaign ideas ("plays")
- Suggests tool stacks for execution
- Defines success metrics
- Upcoming: curated plays, document exports, and automated campaign actions
Discussion Link, Original Link
YapCards (iOS) – Voice-driven flashcards with AI feedback [Education]
20 points, 6 comments
Voice-driven iOS flashcard app with AI feedback for hands-free learning.
- Voice-only practice (no screen interaction needed)
- AI-powered response evaluation and feedback
- Supports public or custom Excel-based flashcard lists
- SM2 algorithm for spaced repetition scheduling
- Built with Swift, Firebase, Deepgram, ElevenLabs, and OpenAI
Internet Archive File Browser [Developer Tools]
3 points, 1 comments
A simple, open-source file browser for Internet Archive-hosted files, designed to improve sorting and UI.
- Sorts files in reverse chronological order
- Single HTML file with embedded JavaScript
- Hosted on GitHub Pages for free
- Useful for open-source projects storing files on Internet Archive
- Free and open-source
Discussion Link, Original Link
Booktranslate.ai – Recursive AI Translation Engine for Full Books [Text]
3 points, 0 comments
AI-powered recursive translation engine for full-length books with high fidelity and coherence.
- Recursive, multi-pass translation with sliding context window for tone consistency
- Glossary-enforced translations to maintain terminology accuracy
- Preserves original formatting and rhetorical style
- High-quality output (~98% publishable) in complex languages like Chinese and Arabic
- Designed for nonfiction, essays, and philosophy (not optimized for fiction)
- Lightweight RAG-style workflow without vectorization
- Minimizes hallucinations and over-polishing
Discussion Link, Original Link
Sauron MCP – one MCP to rule them all [Developer Tools]
3 points, 0 comments
A remote MCP proxy tool that eliminates local installation and restarts by searching and connecting to tools directly.
- Searches and proxies remote MCPs without local setup
- No need to restart environments (e.g., Claude Desktop)
- Early-stage MVP seeking security and architecture feedback