Show HN Daily Selection (2025-08-16)
- Edka – Kubernetes clusters on your own Hetzner account
- JMAP MCP – Email for your agents
- Orca – AI Game Engine
- Add "gist" to any YouTube URL to get instant video summaries
- PgHook – Docker image that streams PostgreSQL row changes to webhooks
- Ldns.com – fast DNS lookups from the URL bar
- OpenAVMKit – open-source toolkit for real estate mass appraisal (AVMs)
- Clojure Land – discover open-source Clojure projects
- PlutoPrint – Generate Beautiful PDFs and PNGs from HTML with Python
- Kuvasz Uptime 2.4.0 – custom status, keyword and slow response checks
- SHOW HN: I made a 30fps CLI Tetris game in PHP after watching the Tetris movie
- A Provably Zero Trust VPN
- Nabu (TTS Reader and LLM Playground on Android)
Edka – Kubernetes clusters on your own Hetzner account [Developer Tools]
255 points, 78 comments
Edka simplifies Kubernetes cluster setup and management on Hetzner Cloud with a layered, production-ready approach.
- Quickly provisions k3s-based Kubernetes clusters on Hetzner (~2 minutes)
- One-click deployment for essential add-ons like metrics-server and cert-manager
- Minimal-config UIs for applications (e.g., HA PostgreSQL with point-in-time recovery)
- Automated CI/CD deployments with versioning, rollbacks, autoscaling, and secrets management
- Built with TypeScript, React, PostgreSQL, and encrypted data storage (Vault + AWS KMS)
Discussion Link, Original Link
JMAP MCP – Email for your agents [Developer Tools]
38 points, 9 comments
JMAP MCP is a server that enables email management tools for Claude via JMAP providers like FastMail, built with Deno.
- Adds email search, read, and send capabilities to Claude
- Supports JMAP providers such as FastMail
- Built using Deno runtime
Discussion Link, Original Link
Orca – AI Game Engine [Developer Tools]
4 points, 0 comments
AI Game Engine
- Designed for game development
- Leverages AI capabilities
Discussion Link, Original Link
Add "gist" to any YouTube URL to get instant video summaries [Video]
3 points, 0 comments
A tool that adds "gist" to any YouTube URL to generate instant video summaries.
- Simple URL modification for quick summaries
- Free and open-source alternative to paywalled tools
- Supports PWA installation for seamless sharing from YouTube app
- Clean and straightforward summary formatting
Discussion Link, Original Link
PgHook – Docker image that streams PostgreSQL row changes to webhooks [Developer Tools]
22 points, 2 comments
Real-time PostgreSQL row change notifications via webhooks using a lightweight Docker image.
- 23 MB Docker image (10.1 MB compressed)
- .NET9 AOT-compiled for efficiency
- Streams logical replication events to configurable webhooks
- Designed for minimalism compared to Debezium
- Supports real-time UI updates via webhook-to-SignalR conversion
Discussion Link, Original Link
Ldns.com – fast DNS lookups from the URL bar [Developer Tools]
5 points, 2 comments
Fast DNS lookup tool for investigating domains directly from the browser URL bar.
- Runs client-side using Cloudflare's DNS over HTTPS
- Displays all DNS records with clickable filtering
- Shows RDAP/WHOIS data, registrar info, and expiration dates
- Checks email security configuration (SPF, DMARC, MTA-STS, BIMI)
- Supports exports in JSON, CSV, BIND zones, and PDF reports
- Built with SvelteKit and deployed on Cloudflare Pages for fast loading
Discussion Link, Original Link
OpenAVMKit – open-source toolkit for real estate mass appraisal (AVMs) [Finance]
3 points, 0 comments
Open-source toolkit for real estate mass appraisal, enabling analysts to build automated valuation models using public data sources.
- Data enrichment from public sources like OpenStreetMap, US Census, and USGS
- Supports multiple modeling algorithms (MRA, GWR, LightGBM, XGBoost, CatBoost)
- Generates IAAO-compatible reports and statistics
- Provides reproducible workflows via data pipelines and settings files
- Early-stage development with example notebooks for quick setup
Discussion Link, Original Link
Clojure Land – discover open-source Clojure projects [Developer Tools]
19 points, 0 comments
Discover open-source Clojure projects through a simple website.
- Helps users find open-source Clojure projects
- Simple and easy-to-use interface
- Focused on Clojure ecosystem
Discussion Link, Original Link
PlutoPrint – Generate Beautiful PDFs and PNGs from HTML with Python [Developer Tools]
3 points, 0 comments
Generate Beautiful PDFs and PNGs from HTML with Python.
- Converts HTML to high-quality PDFs and PNGs
- Python-based tool for easy integration
- Designed for creating visually appealing documents
Discussion Link, Original Link
Kuvasz Uptime 2.4.0 – custom status, keyword and slow response checks [Developer Tools]
5 points, 0 comments
Kuvasz Uptime 2.4.0 enhances monitoring with custom status checks, keyword matching, and slow response detection.
- Custom status code and keyword matching
- Slow response checks
- New translations
- Various smaller improvements and fixes
Discussion Link, Original Link
SHOW HN: I made a 30fps CLI Tetris game in PHP after watching the Tetris movie [Entertainment]
4 points, 1 comments
A 30fps CLI Tetris game built in PHP inspired by the Tetris movie.
- Built in PHP
- Command-line interface (CLI)
- Runs at 30 frames per second (fps)
- Inspired by the Tetris movie
Discussion Link, Original Link
A Provably Zero Trust VPN [Developer Tools]
8 points, 0 comments
A Zero Trust VPN with verifiable server code using Intel SGX for hardware guarantees.
- Uses Intel SGX for hardware-based security guarantees
- Allows verification that servers run the same code as the repository
- Designed for zero trust architecture
Discussion Link, Original Link
Nabu (TTS Reader and LLM Playground on Android) [Audio]
7 points, 0 comments
Fast-moving edge model playground with TTS and local LLM support on Android.
- Supports Gemma 3 270M for local LLM
- Fast TTS token processing
- Includes e-reader utility
- Open to contributions and improvements