A collective list of free APIs

📚 Freely available programming books

Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

The agent engineering platform.

Unsloth Studio is a web UI for training and running open models like Gemma 4, Qwen3.6, DeepSeek, gpt-oss locally.

💻 A fully functional local AWS cloud stack. Develop and test your cloud & Serverless apps offline

Apache Airflow - A platform to programmatically author, schedule, and monitor workflows

A collection of design patterns/idioms in Python

OCRmyPDF adds an OCR text layer to scanned PDF files, allowing them to be searched

The authentication glue you need.

A Django content management system focused on flexibility and user experience

Private AI platform for agents, assistants and enterprise search. Built-in Agent Builder, Deep research, Document analysis, Multi-model support, and API connectivity for agents.

A collaborative note taking, wiki and documentation platform that scales. Built with Django and React.

Open Source HR and Payroll Software

API for sunnah.com