Show HN Daily Selection (2025-05-06)
- Real-time AI Voice Chat at ~500ms Latency
- VectorVFS, your filesystem as a vector database
- TextQuery – Query CSV, JSON, XLSX Files with SQL
- Tkintergalactic - Declarative Tcl/Tk UI Library for Python
- Klavis AI – Open-source MCP integration for AI applications
- Bracket – selfhosted tournament system
- My AI Native Resume
- Tired of bloated time trackers? Here's a dead-simple, free one I built
- Automate your workflows with screen recordings and AI agents
- CodeCafé – A real-time collaborative code editor in the browser
- X-Terminate, a Chrome extension to remove politics from your X feed
- I built a mini macOS app to reveal my yearly subscription spending
- DistilKitPlus, a distillation framework between any LLMs
- Oci2git – Convert OCI container images into Git repositories
- Open-source AI web parser lib & TUI
- Ridvay Code – An AI Coding Assistant for VS Code
- Reverse Pac-Man
- An open-source low-code platform
- I built a painless local dev env for macOS
- I kept forgetting names and contacts so I built Cardio
- Open source SVG icons made for UI design
- LLM-Exe – A Modular TypeScript Toolkit for LLM Application Development
- Raman-01 – A Pocket Physics Solver LLM
- A Modern Personal Homepage Template with Fluid Background and Anime.js
Real-time AI Voice Chat at ~500ms Latency [Audio]
161 points, 85 comments
Real-time AI voice chat with ~500ms latency.
- Low-latency voice chat (~500ms)
- AI-powered real-time interaction
Discussion Link, Original Link
VectorVFS, your filesystem as a vector database [Developer Tools]
196 points, 95 comments
Your filesystem as a vector database.
- Converts filesystem into a vector database
- Enables efficient search and retrieval of files
- Supports vector-based operations on file data
Discussion Link, Original Link
TextQuery – Query CSV, JSON, XLSX Files with SQL [Developer Tools]
107 points, 40 comments
Query CSV, JSON, and XLSX files using SQL.
- Supports querying multiple file formats (CSV, JSON, XLSX)
- Uses SQL syntax for data extraction
- No additional text or context provided in the post
Discussion Link, Original Link
Tkintergalactic - Declarative Tcl/Tk UI Library for Python [Developer Tools]
53 points, 5 comments
Declarative Tcl/Tk UI library for Python.
- Simplifies UI creation with a declarative approach
- Built on Tkinter for Python
- Streamlines Tcl/Tk integration
Discussion Link, Original Link
Klavis AI – Open-source MCP integration for AI applications [Developer Tools]
53 points, 46 comments
Klavis AI is an open-source MCP integration solution offering hosted API access with built-in authentication and client interfaces.
- Open-source MCP servers and clients for Web, Slack, and Discord
- Production-ready hosted MCP servers with API access
- Built-in OAuth and multi-tenancy authentication support
- Eliminates the need for custom MCP client code
- Quick-start options for both hosted and self-hosted deployments
Discussion Link, Original Link
Bracket – selfhosted tournament system [Developer Tools]
120 points, 26 comments
Bracket is an open-source, self-hosted tournament system designed for small sports clubs and individuals, offering flexible tournament setups at no cost.
- Open-source alternative to expensive paid tournament systems
- Supports multiple tournament stages with various formats (round robin, single elimination, Swiss)
- Backend in async Python with FastAPI, frontend in Next.js using Mantine
- Successfully hosted six paid tournaments for a badminton club
- Includes demo and comprehensive documentation
Discussion Link, Original Link
My AI Native Resume [Productivity]
271 points, 181 comments
AI-powered resume server that communicates qualifications and skills dynamically.
- Uses AI agents and LLMs to explain professional background interactively
- Open-source, allowing customization for personal AI-driven resumes
- Integrates with tools like Notion, Hirebase, and Gmail for job search automation
- Provides prompts and resources to explore skills and experiences in-depth
Discussion Link, Original Link
Tired of bloated time trackers? Here's a dead-simple, free one I built [Productivity]
5 points, 0 comments
A simple, free time-tracking app designed for ease of use without unnecessary features.
- Tracks work hours, meetings, breaks, and lunch
- Optional note-taking functionality
- Works online and offline
- No account required (optional account creation)
- Built as a native iOS app using Swift
Discussion Link, Original Link
Automate your workflows with screen recordings and AI agents [Productivity]
4 points, 0 comments
Automate workflows by uploading screen recordings, with AI agents instantly building the automation.
- Converts screen recordings into automated workflows
- No coding or prompts required
- Supports over 2,500 applications
- Requires authorization for agent execution
Discussion Link, Original Link
CodeCafé – A real-time collaborative code editor in the browser [Developer Tools]
71 points, 9 comments
A real-time collaborative code editor in the browser with no setup or sign-up required.
- No downloads, sign-up, or setup—just open and start coding
- Built with React, TypeScript, Java, and Spring Boot
- Real-time editing via WebSockets and Redis
- Custom Operational Transformation system for syncing changes
- Inspired by VS Code and Replit but simpler
- Currently lacks file storage and export functionality
Discussion Link, Original Link
X-Terminate, a Chrome extension to remove politics from your X feed [Consumer Tech]
3 points, 1 comments
A Chrome extension that filters out political content from Twitter/X using Rust-based data labeling and decision tree inference.
- Removes political posts from Twitter/X feed
- Built with open-source Rust libraries for data labeling and decision tree inference
- Customizable filters (e.g., can block other topics like Rust or AI)
- Includes installation instructions and source code on GitHub
I built a mini macOS app to reveal my yearly subscription spending [Finance]
7 points, 2 comments
A macOS app to track and manage subscription spending with privacy-focused features.
- Visual calendar for upcoming charges
- Custom notifications for payment reminders
- Subscription flagging (annual, trial, one-time)
- Yearly spending projections and statistics
- Custom categories for organization
- Multi-currency support
- Active/canceled status management
- Quick addition with auto-suggestions
- Data import/export functionality
Discussion Link, Original Link
DistilKitPlus, a distillation framework between any LLMs [Developer Tools]
9 points, 4 comments
A distillation toolkit for cross-tokenizer LLM model transfer, validated on reasoning datasets and models like Phi and Qwen.
- Supports cross-tokenizer distillation (e.g., LLaMA to Qwen)
- Validated on reasoning datasets like AIME
- Works with models such as Phi and Qwen
- Integrated with Modal for quick deployment ($30/month credits)
- GitHub and documentation available for exploration
Discussion Link, Original Link
Oci2git – Convert OCI container images into Git repositories [Developer Tools]
4 points, 0 comments
A tool that converts OCI container images into Git repositories, with each layer as a separate commit.
- Converts OCI container images into Git repos for easier inspection
- Each layer becomes a separate Git commit, enabling git diff, blame, and bisect
- Supports local OCI layouts and remote registries like Docker Hub
- Written in Rust, fast, and doesn’t require a container runtime
- Useful for debugging, auditing, and understanding container layer evolution
Discussion Link, Original Link
Open-source AI web parser lib & TUI [Developer Tools]
11 points, 1 comments
An open-source AI-powered web parser with a terminal UI that extracts and saves webpage data to a DuckDB database.
- Uses AI to generate parsers for webpages like Twitter, LinkedIn, and HN
- Connects to Chrome via CDP for real-time parsing while browsing
- Stores parsed data in DuckDB for querying later
- Includes a terminal UI for easy interaction
- Open-source and welcomes contributions
Discussion Link, Original Link
Ridvay Code – An AI Coding Assistant for VS Code [Developer Tools]
3 points, 1 comments
Ridvay Code is an AI-powered VS Code extension designed to enhance coding workflows with contextual assistance and advanced features.
- Contextual Code Generation: Generates code snippets, functions, or larger blocks based on current work.
- Advanced Refactoring: Provides intelligent refactoring suggestions aligned with best practices.
- Automated Test Generation: Quickly creates unit tests for functions or modules.
- Smart Debugging & Code Explanation: Helps debug errors, propose fixes, and explain unfamiliar code.
- Flexible Model Choice: Supports multiple AI models (GPT-4.1, Claude 3.7, LLaMA 4, etc.) for different needs.
- Privacy & Security: Ensures data stays in the U.S., no storage, and uses trusted APIs for secure processing.
- Free Tier Available: Includes a daily usage cap and a monthly bonus for premium model trials.
Discussion Link, Original Link
Reverse Pac-Man [Entertainment]
4 points, 2 comments
Reverse Pac-Man: A twist on the classic game where you control the ghosts instead of Pac-Man.
- Control two ghosts simultaneously
- Unique gameplay perspective
- Challenges multitasking skills
Discussion Link, Original Link
An open-source low-code platform [Developer Tools]
3 points, 0 comments
Open-source low-code platform for faster and smarter internal app development.
- Open-source
- Low-code development
- Faster internal app creation
- Smart development features
Discussion Link, Original Link
I built a painless local dev env for macOS [Developer Tools]
4 points, 0 comments
ServBay is an integrated local development environment for macOS that simplifies setting up and managing dev stacks with a graphical interface.
- Supports multiple versions of PHP, Node.js, and Python
- Includes popular databases like MySQL, PostgreSQL, and MongoDB
- Features web servers like Caddy and Nginx
- Offers essential services like local DNS, email testing, and SSL certificate management
- Recently added support for Ollama for local AI development
- Designed for simplicity and speed, reducing setup time from hours to minutes
- Available for macOS (Intel and Apple Silicon), with a Windows version in progress
Discussion Link, Original Link
I kept forgetting names and contacts so I built Cardio [Life Assistant]
3 points, 0 comments
A digital contact-sharing tool that saves profiles via QR code or link without requiring an app.
- Built with Next.js, Adobe, and Stripe
- Uses AI tools (Cursor, ChatGPT) for faster development
- No app install needed—works via QR code or link
- Designed for easy contact saving and recall
Discussion Link, Original Link
Open source SVG icons made for UI design [Design]
4 points, 0 comments
Open-source SVG icons designed for UI with clean, minimalist styles and MIT license.
- 442 high-quality, consistent icons in Outline and Solid styles
- Specialized for interface design, scalable for any size
- Created using an icon grid for pro-level consistency
- Optimized SVG files for fast loading
- MIT license allows unlimited use
- Editable Figma sources available for customization
Discussion Link, Original Link
LLM-Exe – A Modular TypeScript Toolkit for LLM Application Development [Developer Tools]
3 points, 1 comments
A modular TypeScript toolkit for simplifying LLM application development with reusable components and provider-agnostic design.
- Structured templating for prompts with Handlebars support
- Parsers to transform raw LLM responses into structured data (JSON, arrays, enums)
- Abstracted interfaces for multiple LLM providers (OpenAI, Anthropic, Google Gemini, etc.)
- Executors for well-typed LLM function calls with predefined inputs/outputs
- Utilities for debugging, caching, and conversation state management
Discussion Link, Original Link
Raman-01 – A Pocket Physics Solver LLM [Education]
3 points, 0 comments
A lightweight physics solver LLM fine-tuned for easy-to-medium physics problems, deployable as a pocket tutor.
- Model: Qwen3-1.7B, optimized for physics QA
- Supervised finetuning with ~1500 curated examples across kinematics, EM, acoustics, etc.
- RL fine-tuning using GRPO and RLVR-style training, improving accuracy from 0.1 to 0.8
- Low-cost training (~$5 on H100)
- Focused on foundational physics with clear reasoning and unit sense
Discussion Link, Original Link
A Modern Personal Homepage Template with Fluid Background and Anime.js [Design]
3 points, 0 comments
A modern personal homepage template featuring fluid backgrounds and smooth animations, built in 48 hours with AI-assisted development.
- Interactive WebGL Fluid Simulation background
- Smooth animations powered by Anime.js
- Simple configuration via config.json
- Fully responsive with mobile support
- Delayed page transitions for better UX
- Lightweight and highly customizable
- AI-assisted development with Cursor IDE