Show HN Daily Selection (2025-07-22)
- Lotas – Cursor for RStudio
- Pogocache – Fast caching software
- MCP Jetpack – The easiest way to get started with MCP in Cursor
- Intercepting proxy for semantic search over visited pages
- Built an email marketing platform after paying $230/month
- Inkverse - An Indie comics platform
- X11 desktop widget that shows location of your network peers on a map
- AI design agent that creates editable creatives with Canva-like control
- Real Time Portfolio Optimization with Kafka and Flink
- Write HTML on HTML Paper
- An API for human-powered browser tasks
- Apple Watch app with haptic-guided breathing to help you meditate
- ThreatCluster – Automatically cluster cybersecurity news
- I made Dailygram so you stop social-media doomscrolling
- Easy Python Time Parsing
- I couldn't find an idea so I created a problem bank
- JavaScript-free imageboard in Lua, with CSS based widgets
- Reverse-engineer ATS bots and land interviews
- Open-source DevOps agent in Rust to secure and manage production infra
- A free hostel in the heart of Switzerland
Lotas – Cursor for RStudio [Developer Tools]
47 points, 20 comments
Lotas introduces Rao, an AI-powered coding assistant integrated into RStudio for data scientists and R programmers.
- Designed specifically for RStudio, addressing the lack of AI assistants in the R programming environment
- Context-aware AI assistant that understands local files, variables, and outputs
- Supports multiple file formats (R, RMD, QMD, Python, Stan) within RStudio
- Offers a free trial with 500 queries/month for $20 afterward
- Prioritizes security with zero data retention agreements (pending BAAs for sensitive data)
Discussion Link, Original Link
Pogocache – Fast caching software [Developer Tools]
62 points, 25 comments
Fast caching software.
- Designed for speed
- Lightweight and efficient
Discussion Link, Original Link
MCP Jetpack – The easiest way to get started with MCP in Cursor [Developer Tools]
7 points, 7 comments
MCP Jetpack simplifies using MCP in Cursor by automatically finding and executing the right tools for various services without manual setup.
- Automatically executes the right MCP tools for tasks without managing individual servers
- Supports 17 services (GitHub, Notion, Linear, etc.) with just two tools to avoid performance issues
- Handles authentication seamlessly within Cursor chat
- Reduces friction by eliminating manual MCP server setup
- Currently in alpha with plans to expand supported services
Discussion Link, Original Link
Intercepting proxy for semantic search over visited pages [Developer Tools]
3 points, 1 comments
Semantic search proxy for visited web pages.
- Intercepts and indexes visited pages
- Enables semantic search over browsing history
- Acts as a proxy to capture page content
Discussion Link, Original Link
Built an email marketing platform after paying $230/month [Marketing]
16 points, 14 comments
Affordable email marketing platform with self-hosted flexibility and hosted convenience.
- Bring your own SMTP to avoid high SaaS costs
- Hosted version starts at $5/month with zero setup
- Open-source option available for self-hosting
- Includes subscriber management, admin dashboard, and custom preferences
- Cost-effective alternative to Mailchimp ($20/month vs. $230/month for 15k contacts)
Discussion Link, Original Link
Inkverse - An Indie comics platform [Entertainment]
13 points, 3 comments
An indie comics platform for creators and readers.
- Focuses on indie comics
- Platform for creators to publish
- Reader-friendly interface
Discussion Link, Original Link
X11 desktop widget that shows location of your network peers on a map [Consumer Tech]
199 points, 84 comments
X11 desktop widget displaying network peers' locations on a map.
- Shows real-time location of network peers
- Integrates with X11 desktop environment
- Visualizes peer connections geographically
Discussion Link, Original Link
AI design agent that creates editable creatives with Canva-like control [Design]
3 points, 6 comments
AI design agent for creating editable creatives with Canva-like control.
- Generates customizable designs
- Offers Canva-like editing features
- AI-powered creative generation
Discussion Link, Original Link
Real Time Portfolio Optimization with Kafka and Flink [Finance]
3 points, 0 comments
Real-time portfolio optimization using Kafka and Flink for data processing.
- Utilizes Kafka for real-time data streaming
- Employs Flink for efficient data processing and optimization
- Focuses on dynamic portfolio management in real-time
Discussion Link, Original Link
Write HTML on HTML Paper [Design]
3 points, 0 comments
Write HTML directly on printable HTML paper.
- Printable HTML paper format
- Direct HTML writing capability
Discussion Link, Original Link
An API for human-powered browser tasks [Business]
5 points, 1 comments
An API that integrates human operators to handle browser-based tasks when automation fails.
- Secure, locked-down environment for human operators
- Detailed audit trail and session recording
- Webhook notifications for task completion
- Supports complex tasks like login and payment processing
- Designed for edge cases where automation fails
Discussion Link, Original Link
Apple Watch app with haptic-guided breathing to help you meditate [Health]
6 points, 0 comments
An Apple Watch app that uses haptic feedback to guide breathing for meditation based on HRV resonance principles.
- Guides breathing with haptic cues (one tap for inhale, two for exhale)
- Customizable breath rate (under 7 BPM) and in/out ratio
- No subscription, one-time fee
- Potential future integration with HR chest straps for real-time HRV feedback
- Based on HRV resonance meditation principles (slow, rhythmic breathing)
Discussion Link, Original Link
ThreatCluster – Automatically cluster cybersecurity news [Research]
3 points, 0 comments
ThreatCluster automatically groups related cybersecurity articles using semantic clustering to provide a comprehensive view of threats.
- Automatically clusters cybersecurity news in real-time
- Provides threat scores based on recency, credibility, and severity
- Tracks story timelines as new articles are added
- Filters by entity types (APT groups, companies, malware)
- Supports custom feeds for followed entities
- Includes AI-generated threat summaries
- Extracts CVEs, IPs, domains, and file hashes
- Free tier available for browsing clusters
Discussion Link, Original Link
I made Dailygram so you stop social-media doomscrolling [Productivity]
4 points, 0 comments
Dailygram fetches and summarizes social media posts into a daily or weekly digest to reduce doomscrolling.
- Fetches posts from Instagram or X profiles
- Summarizes content using GPT-4o
- Delivers digests via email and RSS feed
- Targets marketers, journalists, and founders
- Built with Laravel, Apify, GPT-4o, and AWS SES
- Proxies images via CDN for privacy
Discussion Link, Original Link
Easy Python Time Parsing [Developer Tools]
3 points, 0 comments
Python library for parsing various time formats in a single line.
- Parses most common time formats
- Simple one-line implementation
- Open to feedback and feature requests
Discussion Link, Original Link
I couldn't find an idea so I created a problem bank [Inspiration]
6 points, 1 comments
A tool to help people find startup ideas by discovering problems using custom plugins built with Grok and Claude.
- Helps users find startup ideas by identifying problems
- Uses custom plugins built with Grok and Claude
- Solves the challenge of idea generation and procrastination
Discussion Link, Original Link
JavaScript-free imageboard in Lua, with CSS based widgets [Image]
5 points, 0 comments
A JavaScript-free imageboard built in Lua with CSS-based widgets, emphasizing security and transparency.
- No JavaScript used, with CSP blocking all execution to prevent XSS attacks
- High security via pledge() and unveil()
- Transparent moderation logs with reasons for actions
- Advanced formatting including LaTeX support
- User-created boards
- Multiple files per post
- Inline image expansion
- Per-board index and recent pages
- Paginated catalog and threads
- Extensive moderation tools
Discussion Link, Original Link
Reverse-engineer ATS bots and land interviews [Business]
3 points, 1 comments
Reverse-engineer ATS bots to improve job application success.
- Analyzes ATS bot behavior
- Helps optimize resumes for better visibility
- Increases interview chances
Discussion Link, Original Link
Open-source DevOps agent in Rust to secure and manage production infra [Developer Tools]
4 points, 0 comments
Open-source Rust-based DevOps agent for securing and managing production infrastructure.
- Open-source DevOps agent
- Written in Rust
- Focuses on securing production infrastructure
- Provides infrastructure management capabilities
Discussion Link, Original Link
A free hostel in the heart of Switzerland [Travel]
6 points, 1 comments
Free hostel located in central Switzerland.
- No cost for accommodation
- Centrally located in Switzerland