Show HN Daily Selection (2025-04-11)
- I built a tool to manage and compare credit card rewards
- Koreo – A platform engineering toolkit for Kubernetes
- Starcrossed – A Traveling Salesman Game
- Homerun Desktop: Self-hosting for professionals with deadlines
- I built an app that reduces podcast preparation effort by 95% +
- Pledge – A Lightweight Reactive Framework for Swift (No Rx Overhead)
- I Built an AI-Powered System to Help You Learn Any Skill in 30 Days
- Calculate confidence score for OpenAI JSON output
- SlamDunk: A user-friendly 3D visualization library
- The Ultimate MCP Client
- I made a unique word game that got a Webby Nomination
- Colors That Cuddle
- New Android App alerts you to scams and suspicious links
- AnydocAI – Turn images and documents into structured data
I built a tool to manage and compare credit card rewards [Finance]
21 points, 11 comments
A free tool to manage and compare credit card rewards by visualizing benefits and optimizing usage.
- Tracks and compares rewards across multiple credit cards
- Identifies gaps in card setups
- Recommends the best card for specific merchants
- Future integration with OneCard for real-time purchase routing
Discussion Link, Original Link
Koreo – A platform engineering toolkit for Kubernetes [Developer Tools]
73 points, 29 comments
Koreo is a meta-controller programming language for Kubernetes that unifies configuration management and resource orchestration.
- Treats Kubernetes resources as reusable "legos" for building workflows
- Enables dynamic resource chaining (output of one resource as input to another)
- Supports built-in, off-the-shelf, and custom controllers without operator implementation
- Avoids limitations of tools like Helm, Kustomize, and Crossplane
- Open-sourced after successful use in commercial and client projects
Discussion Link, Original Link
Starcrossed – A Traveling Salesman Game [Entertainment]
3 points, 1 comments
A game based on the Traveling Salesman Problem.
- Inspired by the Traveling Salesman Problem
- Gameplay involves optimizing travel routes
- Designed for entertainment and learning
Discussion Link, Original Link
Homerun Desktop: Self-hosting for professionals with deadlines [Productivity]
3 points, 0 comments
Homerun Desktop is a self-hosting solution designed for professionals who need efficiency and speed.
- Targets professionals with tight deadlines
- Approaching beta release
- Seeking early feedback and evaluators
Discussion Link, Original Link
I built an app that reduces podcast preparation effort by 95% + [Audio]
7 points, 4 comments
Podcast preparation app that reduces effort by 95%.
- Dramatically reduces preparation time
- Streamlines podcast workflow
- Highly efficient for content creators
Discussion Link, Original Link
Pledge – A Lightweight Reactive Framework for Swift (No Rx Overhead) [Developer Tools]
21 points, 8 comments
A lightweight reactive framework for Swift without Rx overhead.
- Lightweight alternative to RxSwift
- Minimal overhead for reactive programming
- Designed specifically for Swift
Discussion Link, Original Link
I Built an AI-Powered System to Help You Learn Any Skill in 30 Days [Education]
6 points, 3 comments
AI-powered 30-day personalized learning system integrated with Notion for skill mastery.
- AI-driven customized learning paths
- Structured daily tasks based on learning science
- Progress tracking via Notion integration
- Combines Pomodoro and spaced repetition techniques
- Designed for efficiency and reduced overwhelm
Discussion Link, Original Link
Calculate confidence score for OpenAI JSON output [Developer Tools]
5 points, 7 comments
Calculate confidence score for OpenAI JSON output.
- Provides a confidence score for OpenAI's JSON output
- Helps assess reliability of generated JSON data
Discussion Link, Original Link
SlamDunk: A user-friendly 3D visualization library [Developer Tools]
4 points, 0 comments
A lightweight, user-friendly 3D visualization library for SLAM applications built with C++, OpenGL, and ImGui.
- Designed for easy live visualizations without complex boilerplate
- Built with OpenGL and ImGui for lightweight performance
- Focused on simplifying SLAM (simultaneous localization and mapping) workflows
- Aims to reduce fiddling with rendering loops and computer graphics
Discussion Link, Original Link
The Ultimate MCP Client [Developer Tools]
3 points, 0 comments
A Python-based MCP client with rich terminal and web GUI support for interacting with MCP servers.
- Pure Python, single-file deployment
- Interactive terminal and CLI support
- Background orchestration of multiple MCP servers
- Self-contained web GUI (FastAPI + Alpine/Daisy UI)
- Designed for simplicity and minimal complexity
Discussion Link, Original Link
I made a unique word game that got a Webby Nomination [Entertainment]
5 points, 3 comments
Unique word game nominated for a Webby Award.
- Nominated for a Webby Award
- Focuses on word-based gameplay
- No additional details provided in the post
Discussion Link, Original Link
Colors That Cuddle [Design]
4 points, 2 comments
Colors That Cuddle
- No additional details provided in the post.
Discussion Link, Original Link
New Android App alerts you to scams and suspicious links [Consumer Tech]
3 points, 0 comments
An Android app that detects and alerts users to scams and suspicious links in messages while prioritizing privacy.
- Detects scams in SMS and WhatsApp messages from unknown numbers
- Scans and warns about suspicious links in conversations
- Verifies Instagram ads for potential fraud
- Keeps conversations on-device; only links are analyzed externally
- Currently supports SMS and WhatsApp, with plans to expand to other apps
- Privacy-focused: no storage or identity linking of analyzed links
Discussion Link, Original Link
AnydocAI – Turn images and documents into structured data [Productivity]
3 points, 1 comments
AnydocAI converts images and documents into structured data.
- Extracts structured data from images and documents
- Offers premium access for free for testing and feedback
- Contact via X (@ same name) for access