Show HN Daily Selection (2025-09-30)

• Lightweight, Opinionated WebRTC SFU in Rust
• Every single torrent is on this website
• Economic Curves Simulator: Armey and Laffer
• Agentsmd – Local preferences and templates for AGENTS.md
• Automatically set real iOS alarms for calendar events
• Free developer-first OneNote alternative
• I've build a platform for writing technical/scientific documents
• Reddit browser for MCP clients – works with any AI assistant

Lightweight, Opinionated WebRTC SFU in Rust [Developer Tools]

3 points, 1 comments

Lightweight, opinionated WebRTC SFU implemented in Rust.

• Lightweight design
• Opinionated architecture
• Built with Rust for performance
• Supports WebRTC for real-time communication

Discussion Link, Original Link

Every single torrent is on this website [Entertainment]

103 points, 72 comments

A website claiming to host every single torrent available.

• Comprehensive collection of torrents
• Potentially vast resource for users seeking various files

Discussion Link, Original Link

Economic Curves Simulator: Armey and Laffer [Finance]

7 points, 0 comments

Economic simulator visualizing Armey and Laffer curves with interactive quadratic models.

• Simulates Armey curve (public spending vs. economic growth)
• Simulates Laffer curve (tax rates vs. consent to taxation)
• Uses adjustable quadratic models for inverted U-shaped relationships
• Interactive parameter adjustment for scenario exploration

Discussion Link, Original Link

Agentsmd – Local preferences and templates for AGENTS.md [Developer Tools]

4 points, 0 comments

A tool for managing local preferences and reusable templates on top of the AGENTS.md standard.

• Allows personal preferences to be stored locally in .agentsmd files instead of the shared AGENTS.md
• Supports customization of workflows (e.g., excluding npm run dev for Next.js)
• Proposes extending the AGENTS.md standard to recognize local .agentsmd files
• Seeks feedback on personal vs. shared project guidance and template usability

Discussion Link, Original Link

Automatically set real iOS alarms for calendar events [Productivity]

23 points, 13 comments

Automatically converts Apple Calendar events into iOS alarms based on customizable rules.

• Syncs with Apple Calendar to create real iOS alarms
• Customizable rules (e.g., keyword matching, attendee count)
• Works with silent mode/DND to ensure notifications are noticed
• No manual alarm setup required

Discussion Link, Original Link

Free developer-first OneNote alternative [Developer Tools]

17 points, 2 comments

A free, developer-focused alternative to OneNote with an infinite canvas supporting code, graphs, and rich text.

• Supports code editors, Desmos graphs, and rich text (SlateJS) on the same canvas
• Allows annotations on code and graphs, including pen strokes
• Programmatically generate graphs using matplotlib.pyplot
• Locally-stored whiteboard for immediate access
• Beta release with feedback encouraged

Discussion Link, Original Link

I've build a platform for writing technical/scientific documents [Text]

3 points, 1 comments

Platform for writing technical/scientific documents.

• Designed for technical and scientific documentation
• Streamlines the writing process
• Focused on structured and precise content creation

Discussion Link, Original Link

Reddit browser for MCP clients – works with any AI assistant [Developer Tools]

10 points, 0 comments

A Reddit browser for MCP clients that enables AI assistants to access and analyze Reddit content directly.

• Provides native Reddit access for AI assistants without copy-pasting links
• Supports queries like sentiment analysis or trending topic summaries
• Built with TypeScript, features 3-tier rate limiting and LRU cache under 50MB
• Compatible with any MCP client, not just Claude
• Used for real-time tracking of reactions across subreddits (e.g., H-1B policy changes)
• Open to feature requests and contributions

Discussion Link, Original Link