# Open Source

A deep dive into 1Panel's architecture and core features, with a complete deployment tutorial and best practices for modern Linux server management.

A deep dive into LocalSend's technical implementation, with detailed installation tutorials, advanced configuration, and troubleshooting for cross-platform file transfer.

A comprehensive guide to the OpenAI GPT-4 API—covering setup, prompt engineering, streaming, function calling, error handling, cost optimization, and production best practices.

Looking for a free, open-source alternative to Postman? Hoppscotch delivers powerful API testing, team collaboration, and self-hosting capabilities without the paywalls.

Tired of paying for uptime monitoring? Uptime Kuma is a free, self-hosted monitoring tool with 50+ notification channels, real-time alerts, and beautiful status pages.

Build AI applications without writing code. Dify combines visual workflow orchestration, multi-model support, and built-in knowledge base management in one open-source platform.

A deep dive into RustDesk technical architecture and core features, with a complete self-hosted server deployment guide for private, secure remote desktop access.

Explore SearXNG technical architecture and deployment options with a complete self-hosting guide for building your own privacy-preserving meta search engine.

Discover Memos lightweight architecture and core features, with a full deployment guide and best practices for fast, frictionless note-taking you can self-host.