Show HN Daily Selection (2025-06-28)
- I'm an airline pilot – I built interactive graphs/globes of my flights
- AI-SDK-Cpp – Unified C++ SDK for OpenAI, Anthropic, and More
- Sink – Sync any directory with any device on your local network
- Zenta – Mindfulness for Terminal Users
- Dungeon Master in Your Console
- PILF, The ultimate solution to catastrophic oblivion on AI models
- Thockfactory – An Online Configurator for Custom Keycaps Enthusiasts
- GPU market is absurd! So I built a dashboard of pricing/restock trends
- IssuePay – Get paid for open-source contributions
- A Beautiful Python GUI Framework
- Wayland Speech-to-Text Tool
- I'm 15 and built Gofer, an AI that gets actual terminal work done
- A Ruby gem that generates a secure, unique ID for the current machine
- An accurate implementation of Pomodoro Technique
- Daf·thunk – open-source Editor for Prototyping Workflows on Cloudflare
- A Python Language Server, Mypy-compatible
- Free tool to resize ChatGPT images to perfect 16:9
- A Chrome extension that converts formula images to LaTeX
- Promise.allSettled Alternative with Concurrency Support
- News-Hook lets you prompt alerts to stay informed on anything
- DevOps made easier for startups
- Listed – An agentic platform to rank your business on AI
- A Storage-Agnostic Golang Message Queue
I'm an airline pilot – I built interactive graphs/globes of my flights [Travel]
970 points, 158 comments
An airline pilot created interactive 3D globes and graphs to visualize his flight history from digital logbook data.
- Interactive 3D globes display flight paths and history
- Digital logbook tracking of flying hours, aircraft, and airports
- Open to suggestions for additional data visualization ideas
Discussion Link, Original Link
AI-SDK-Cpp – Unified C++ SDK for OpenAI, Anthropic, and More [Developer Tools]
4 points, 0 comments
Unified C++ SDK for integrating multiple AI services like OpenAI and Anthropic.
- Supports multiple AI providers (OpenAI, Anthropic, etc.)
- Written in C++ for performance and compatibility
- Simplifies AI integration with a unified interface
Discussion Link, Original Link
Sink – Sync any directory with any device on your local network [Productivity]
109 points, 80 comments
A simple tool for syncing folders between devices on a local network without cloud or external storage.
- Uses local Wi-Fi for direct device-to-device syncing
- No cloud, email, or flash drives required
- Handles file conflicts by saving both copies
- Easy setup with device trust pairing
- Designed for hassle-free local file transfers
Discussion Link, Original Link
Zenta – Mindfulness for Terminal Users [Health]
171 points, 33 comments
Zenta is a mindfulness tool designed for terminal users.
- Designed for terminal users
- Focuses on mindfulness practices
Discussion Link, Original Link
Dungeon Master in Your Console [Entertainment]
5 points, 0 comments
A CLI-based dungeon master game created using OpenAI Codex and Wayfarer model, developed during a car ride.
- Built with OpenAI Codex and ChatGPT iOS app
- Initial version entirely AI-generated, later adjusted for difficulty
- Uses Wayfarer model for more engaging gameplay
- Developed and managed via GitHub mobile during a car ride
- Designed as a fun, work-like time-waster
Discussion Link, Original Link
PILF, The ultimate solution to catastrophic oblivion on AI models [Developer Tools]
23 points, 6 comments
PILF: A solution to prevent catastrophic oblivion in AI models.
- Prevents catastrophic forgetting in AI models
- Ensures model stability and retention of learned information
Discussion Link, Original Link
Thockfactory – An Online Configurator for Custom Keycaps Enthusiasts [Consumer Tech]
3 points, 0 comments
An online configurator for designing and ordering custom keycap sets for keyboard enthusiasts.
- Allows users to design their own custom keycap sets
- Recently rebuilt with improved UX and smoother ordering process
- Created by a software engineer and keyboard enthusiast
- Open to feedback, bug reports, and ideas
- Available at https://thockfactory.com
Discussion Link, Original Link
GPU market is absurd! So I built a dashboard of pricing/restock trends [Consumer Tech]
3 points, 0 comments
A dashboard tracking GPU pricing and restock trends built using React, Typescript, and Evidence.dev.
- Tracks GPU market trends to combat scalpers and bots
- Built with React/Typescript/Tailwind.css and Evidence.dev for SQL queries in Markdown
- Developed in about a month with iterative LLM-assisted coding
- Includes custom JavaScript for chart formatting
- Future blog post planned on the development process
Discussion Link, Original Link
IssuePay – Get paid for open-source contributions [Finance]
4 points, 2 comments
IssuePay enables open-source contributors to earn money by completing bounties posted on GitHub/GitLab issues.
- Allows maintainers to post bounties on specific issues
- Contributors get paid automatically upon merging code
- Supports direct bank withdrawals for earnings
- Open to partnerships with OSS communities
Discussion Link, Original Link
A Beautiful Python GUI Framework [Developer Tools]
6 points, 1 comments
A Beautiful Python GUI Framework
- Beautiful design
- Python-based
- GUI framework
Discussion Link, Original Link
Wayland Speech-to-Text Tool [Audio]
13 points, 0 comments
A lightweight, on-demand speech-to-text tool for Wayland that transcribes audio using OpenAI Whisper or Google STT.
- Triggered via keybind for quick dictation
- Uses PipeWire for audio capture (no background process)
- Supports OpenAI Whisper or Google STT (local option planned)
- Outputs directly to active text field or clipboard
- Tested on Niri and Hyprland (GNOME/KDE untested)
- Built in Rust as a one-day project (may have bugs)
Discussion Link, Original Link
I'm 15 and built Gofer, an AI that gets actual terminal work done [Developer Tools]
9 points, 3 comments
Gofer is a terminal-first AI assistant designed to automate command-line tasks and desktop monitoring.
- Terminal-focused for executing command-line tasks
- Monitors desktop activities like downloads
- Sends notifications via Telegram
- Built by a 15-year-old developer
Discussion Link, Original Link
A Ruby gem that generates a secure, unique ID for the current machine [Developer Tools]
3 points, 0 comments
Generates secure, unique machine IDs in Ruby.
- Creates unique identifiers per machine
- Focuses on security
- Easy integration via Ruby gem
Discussion Link, Original Link
An accurate implementation of Pomodoro Technique [Productivity]
3 points, 2 comments
Accurate Pomodoro Technique implementation.
- Follows Pomodoro method precisely
- Helps with time management and focus
- Simple and effective productivity tool
Discussion Link, Original Link
Daf·thunk – open-source Editor for Prototyping Workflows on Cloudflare [Developer Tools]
13 points, 1 comments
Daf·thunk is an open-source visual workflow editor for prototyping on Cloudflare's infrastructure.
- Leverages Cloudflare services (Workers, D1, KV, Workflows, AI) for robust workflows
- Supports triggers via HTTP, email, schedules, or manual execution
- Developed using AI-assisted tools like Cursor, Claude, and Gemini
- Encourages simple APIs with deep internal logic
- Open-source release with contributions welcome
Discussion Link, Original Link
A Python Language Server, Mypy-compatible [Developer Tools]
41 points, 13 comments
A Python language server compatible with Mypy, offering advanced tooling for Python development.
- Understands Mypy config files
- Passes over 95% of relevant Mypy tests
- Built by the creator of Jedi
- Designed to advance Python tooling
Discussion Link, Original Link
Free tool to resize ChatGPT images to perfect 16:9 [Image]
5 points, 3 comments
Free tool to resize ChatGPT images to a perfect 16:9 ratio without cropping.
- Converts ChatGPT images to 16:9 aspect ratio
- No cropping required
- Simple and free to use
Discussion Link, Original Link
A Chrome extension that converts formula images to LaTeX [Developer Tools]
5 points, 0 comments
A Chrome extension that converts formula images to LaTeX code instantly.
- Converts formula images, screenshots to LaTeX
- No signup required, paste or drag & drop images
- Works for math, physics, and chemistry formulas
- One-click copy LaTeX code for easy use
- Free and designed for problem sets, papers, or presentations
Discussion Link, Original Link
Promise.allSettled Alternative with Concurrency Support [Developer Tools]
5 points, 0 comments
A lightweight Promise.allSettled alternative with concurrency control for handling multiple promises efficiently.
- Supports concurrency control to manage simultaneous promise executions
- Provides detailed results for each promise, similar to Promise.allSettled
- Lightweight and easy to integrate into existing projects
- Open-source with community feedback and improvement opportunities
Discussion Link, Original Link
News-Hook lets you prompt alerts to stay informed on anything [Productivity]
7 points, 0 comments
News-Hook enables users to set up webhook alerts for real-world events using simple prompts.
- Create alerts via natural language prompts (e.g., "Inform me when [movie] gets a Rotten Tomatoes score").
- Supports standard webhook setup with URL and payload configuration.
- Offers a full API and Swagger-UI for programmatic access.
Discussion Link, Original Link
DevOps made easier for startups [Developer Tools]
3 points, 0 comments
Obelis AI is an AI-powered DevOps assistant that helps startups manage infrastructure with simplicity and full control.
- AI-driven DevOps support without being just an LLM wrapper
- Designed for early-stage teams to avoid costly infra migrations later
- Provides simplicity similar to Vercel/Firebase but runs on your own cloud (AWS)
- Full control over infrastructure to avoid vendor lock-in
- Currently in beta, seeking user feedback
Discussion Link, Original Link
Listed – An agentic platform to rank your business on AI [Business]
5 points, 1 comments
An agentic platform to help businesses improve their AI discoverability and accuracy by providing structured, verified data to LLMs.
- Automated Context Building: Scrapes and structures website data to create an AI-optimized listing.
- Intelligent Workflows: Uses chat-based workflows to enhance listing accuracy and ranking potential.
- Performance Analytics: Tracks AI Ranking and Recall Accuracy across major models like GPT-4o and Claude 3.
- Connection via Code Snippet: Directs AI crawlers to consume structured data instead of parsing messy websites.
- Free Tier Available: Launched with a free tier for businesses to try and provide feedback.
A Storage-Agnostic Golang Message Queue [Developer Tools]
7 points, 0 comments
A lightweight, storage-agnostic Golang message queue with superior memory efficiency and performance.
- 50%+ lower memory usage compared to similar packages
- Strong performance in IO tasks
- Benchmarks available for transparency
- Open-source with community-driven development