Show HN Daily Selection (2025-05-22)
- Confidential computing for high-assurance RISC-V embedded systems
- I've built online video editor
- Evolved.lua – An Evolved Entity Component System for Lua
- Representing Agents as MCP Servers
- Trendly AI – Trend detection across 42 languages
- I made Blueprint for brain health to hit daily peak productivity
- I built an Free AI tool to generate pixel art from text descriptions
- Test your license plate identification skills
- Super (YC W18) - Turn company data into answers & agents for your team
- BemiDB – Open-source data warehouse with zero-ETL
- I vibe coded a complex trading app
- I made "Who's Hiring?" searchable using GPT and Metabase
- Kraa.io – Markdown editor for notes, blogs, chats
- AI Baby Monitor – local Video-LLM that beeps when safety rules break
- OpenHands, an open source alternative to Devin, Codex, and Jules
- I built ColorSnap to generate Tailwind color palettes from images
- TitleBridge - A FinalCut Workflow Plugin
- We saw a lot of issues with Stripe so we built an alternative
- Phare: A Safety Probe for Large Language Models
- Native Japanese immersion reader app + Anki integration (Manabi Reader)
- CodeBoarding – interactive map of your codebase for onboarding
- Free OSINT API to profile Reddit users
- apply.coop - Matching people with jobs that fit their values & passions
- Tinker with Meta's "tokenizer-free" patcher
Confidential computing for high-assurance RISC-V embedded systems [Developer Tools]
64 points, 3 comments
Confidential computing for high-assurance RISC-V embedded systems with formally verified firmware.
- Implements VM-based trusted execution environment (TEE) for embedded RISC-V
- Focuses on formally verified and auditable firmware
- Targets high-assurance systems with compartmentalization and hardware-backed isolation
- Security monitor firmware implemented in Rust
- Formal specification defined in code and translated to Coq via RefinedRust
- Part of the RISC-V confidential VM extension (CoVE) specification
Discussion Link, Original Link
I've built online video editor [Video]
78 points, 37 comments
Online video editor built for easy web-based editing.
- Web-based video editing
- Simple and accessible interface
Discussion Link, Original Link
Evolved.lua – An Evolved Entity Component System for Lua [Developer Tools]
46 points, 11 comments
A fast and flexible Entity-Component-System library for Lua designed for simplicity and high performance.
- Simple and easy to use
- Supports complex systems
- Blazing performance
Discussion Link, Original Link
Representing Agents as MCP Servers [Developer Tools]
35 points, 16 comments
A lightweight framework enabling agents to function as MCP servers, allowing MCP clients to invoke and orchestrate them seamlessly.
- Agent Composition: Build multi-agent systems using the MCP protocol.
- Platform Independence: Use agents from any MCP-compatible client.
- Scalability: Run agent workflows on dedicated infrastructure.
- Customization: Develop reusable agent workflows across clients.
- Durable Execution: Supports pausing, resuming, and retrying workflows via Temporal.
- Workflow API: Includes endpoints for listing, running, checking status, resuming, and canceling workflows.
Discussion Link, Original Link
Trendly AI – Trend detection across 42 languages [Research]
28 points, 14 comments
Trendly AI detects trends across 42 languages.
- Analyzes trends in multiple languages
- Supports 42 different languages
- Provides real-time trend detection
Discussion Link, Original Link
I made Blueprint for brain health to hit daily peak productivity [Health]
3 points, 0 comments
Blueprint for brain health helps optimize daily productivity through personalized brain health analysis and action plans.
- Integrates phone data, calendar, and wearable biomarkers for a life snapshot
- Psychologists review data to assess brain health
- Provides personalized action plans for peak performance
- Early access focused on athletes and founding teams
- Developed by a former Judo national team athlete for top 1% physical and mental performance
Discussion Link, Original Link
I built an Free AI tool to generate pixel art from text descriptions [Image]
13 points, 2 comments
AI-powered tool that generates pixel art from text descriptions.
- Text-to-Pixel Art: Converts text prompts into pixel art images.
- Pixel Art Style: Focuses on creating distinct pixelated aesthetics.
- Simple Interface: Easy-to-use with straightforward prompt input.
- Use Cases: Ideal for indie game developers, digital artists, and pixel art enthusiasts.
Discussion Link, Original Link
Test your license plate identification skills [Entertainment]
20 points, 12 comments
Test your ability to identify approved/rejected California license plates in this interactive game.
- Uses a dataset of approved/rejected California license plates
- Interactive format to test identification skills
- Inspired by a recent Hacker News discussion
Discussion Link, Original Link
Super (YC W18) - Turn company data into answers & agents for your team [Business]
13 points, 3 comments
Super is an AI-powered tool that connects company data sources to provide fast, accurate answers and automate workflows for teams.
- Seamlessly integrates with existing tools for unified knowledge retrieval
- Provides near-instant answers by searching multiple data sources simultaneously
- Supports parallel LLM tasks for efficient information aggregation
- Offers enterprise-grade features like permissions and access controls
- Includes customizable AI assistants and embeddable extensions
- Features built-in MCP capabilities for agentic workflows
Discussion Link, Original Link
BemiDB – Open-source data warehouse with zero-ETL [Developer Tools]
6 points, 2 comments
BemiDB is an open-source zero-ETL data warehouse that simplifies analytics by integrating Postgres and other data sources seamlessly.
- Zero-ETL integration with Postgres and external data sources like HubSpot and Stripe
- Uses Apache Iceberg with Parquet files stored in S3 for cost-effective, scalable storage
- Embeds DuckDB for fast in-memory analytics with columnar storage and vectorized execution
- Postgres wire protocol and syntax compatibility for easy adoption
- Open-source and non-proprietary (Apache Iceberg) to avoid vendor lock-in
Discussion Link, Original Link
I vibe coded a complex trading app [Finance]
5 points, 6 comments
Tradofire is a crypto trading app that lets users swipe on pre-prepared trading setups to open positions, with AI-assisted development.
- Swipe-to-Trade UI for quick long/short position initiation
- Real-time curated crypto trade signals
- Built-in automated stop-loss and take-profit controls
- Paper trading mode for risk-free strategy testing
- Easy exchange integration for live trading
Discussion Link, Original Link
I made "Who's Hiring?" searchable using GPT and Metabase [Developer Tools]
4 points, 0 comments
A tool that transforms Hacker News' "Who's Hiring?" threads into searchable job data using GPT, PostgreSQL, and Metabase.
- Extracts job details (company, role, location, salary, contact) using GPT
- Stores data in PostgreSQL for structured access
- Provides a Metabase dashboard for exploration and search
- Currently runs locally, with potential for a public dashboard
Discussion Link, Original Link
Kraa.io – Markdown editor for notes, blogs, chats [Text]
57 points, 26 comments
A web-based markdown editor for notes, blogs, and chats with a focus on distraction-free writing and customizable styling.
- Distraction-free markdown editor
- Strong separation of document styling from writing experience
- Supports rich customization options
- Public beta with planned launch later this year
Discussion Link, Original Link
AI Baby Monitor – local Video-LLM that beeps when safety rules break [Consumer Tech]
6 points, 5 comments
AI Baby Monitor uses local Video-LLM to detect safety rule violations and alerts parents with a beep sound.
- Monitors video stream using Redis + vLLM + Streamlit
- Checks against YAML-defined safety rules
- Runs locally with Qwen 2.5 VL model for structured JSON output
- Alerts via beep sound (no phone notifications)
- Streamlit interface displays camera feed and LLM logs
Discussion Link, Original Link
OpenHands, an open source alternative to Devin, Codex, and Jules [Developer Tools]
11 points, 1 comments
Open-source alternative to Devin, Codex, and Jules for AI-assisted coding.
- Open-source
- AI-assisted coding
- Alternative to commercial tools
Discussion Link, Original Link
I built ColorSnap to generate Tailwind color palettes from images [Design]
3 points, 1 comments
ColorSnap generates Tailwind CSS color palettes from uploaded images by extracting dominant colors and matching them to Tailwind utility classes.
- Extracts dominant colors from images
- Maps colors to closest Tailwind CSS classes using LAB color comparison
- Provides hex values and ready-to-use class names (e.g., bg-indigo-500)
- Built with Next.js and Tailwind CSS, runs entirely in the browser
- Speeds up color decisions and ensures consistent styling
Discussion Link, Original Link
TitleBridge - A FinalCut Workflow Plugin [Video]
8 points, 1 comments
TitleBridge simplifies FinalCut caption workflows by enabling drag-and-drop transfer of captions between projects.
- Eliminates multi-step export/import processes
- Uses simple drag-and-drop functionality
- Streamlines caption integration into timelines
- Designed for short-form video editing needs
Discussion Link, Original Link
We saw a lot of issues with Stripe so we built an alternative [Finance]
10 points, 2 comments
Dodo Payments is a Merchant of Record platform offering global payment solutions for digital founders, bypassing Stripe's limitations and compliance complexities.
- Global payment gateway access, including Stripe-restricted regions
- One-click tax compliance (VAT, GST, sales tax, etc.)
- No local legal entity setup required
- Revenue settlement in local currency
- Optimized checkout stack for global conversions
Discussion Link, Original Link
Phare: A Safety Probe for Large Language Models [Research]
4 points, 0 comments
Phare is a benchmark and paper challenging conventional LLM evaluation by focusing on factual reliability, prompt sensitivity, and multilingual support.
- Challenges leaderboard-driven LLM evaluation
- Tests factual reliability and prompt sensitivity
- Includes multilingual support
- Analyzes handling of false premises
- Reveals discrepancies between preference scores and factual correctness
- Highlights framing effects and safety metrics like sycophancy and stereotype reproduction
Discussion Link, Original Link
Native Japanese immersion reader app + Anki integration (Manabi Reader) [Education]
5 points, 2 comments
An app for immersive Japanese reading with Anki integration.
- Native Japanese immersion reader
- Anki integration for vocabulary learning
Discussion Link, Original Link
CodeBoarding – interactive map of your codebase for onboarding [Developer Tools]
23 points, 8 comments
CodeBoarding is an interactive tool that visualizes codebases to simplify onboarding for developers.
- Combines static analysis and LLM agents to generate accurate diagrams
- Creates abstract, clickable components with summaries for easier navigation
- Currently supports Python codebases with a demo available
- Plans to release a free VSCode extension for hosted licenses soon
Discussion Link, Original Link
Free OSINT API to profile Reddit users [Developer Tools]
6 points, 2 comments
Free OSINT API for profiling Reddit users using public data.
- Converts usernames into detailed profiles including risks, interests, and activity patterns
- Basic API usage is free
- Uses only public Reddit data and is GDPR-compliant
Discussion Link, Original Link
apply.coop - Matching people with jobs that fit their values & passions [Business]
54 points, 6 comments
A platform connecting job seekers with roles aligned with their values and passions.
- Matches candidates based on personal values and passions
- Focuses on meaningful job opportunities
- Designed for cooperative and value-driven employment
Discussion Link, Original Link
Tinker with Meta's "tokenizer-free" patcher [Developer Tools]
3 points, 0 comments
A tool for experimenting with Meta's "tokenizer-free" patching method to understand its strengths and weaknesses.
- Robustness: High entropy focuses compute on challenging bytes, useful for low-resource languages and spelling tasks.
- Compute efficiency: Low entropy reduces compute usage for simpler bytes.
- In-context learning: Adapts tokenization to reduce wasted compute in later sequence regions.