Links that often come in handy

Deutsch Lernen

• Nancy Thuleen - Grammar worksheets
• Deutsch im Blick

Electronics

• Electric Circuits (Comprehensive textbook)
• Digital Signals Theory - Greatest book ever to learn Signals & Systems.

Embedded Systems

• esp-idf projects

Maths

Calculus

• Multi-variable Calculus Notes (Pure HTML)
• OpenStax - Calculus Vol 1
• Online Mathematics Textbooks
• Mathematics Cheatsheets and Notes

Programming

Rust

• Rust exercises - 100 Exercises to learn Rust.
• Rust API guidelines - Set of recommendations to design and present Rust APIs.
• Rust Design Patterns

Development Standards

• CLI Guidelines - Set of recommendations to design and present CLI tools.

DSA & Competitive Programming

• CP Algorithms
• DSA List - List of leetcode problems related to DSA.

AI Tools

• PerplexityAI - AI search engine.
• DuckDuckGo AI - AI chat interface supporting LLM models like, GPT, Llama, Claude, Mistral.
• DorkGPT - Generate Google Dorks with AI

Piracy

• 1377x.to - The go-to torrent site.
• Solidtorrent - Torrent search engine, searches across different piracy sites like 1337x.
• Welib - Has huge library of PDFs of books and research papers.
• Annas Archive - Probably the best site to download books.
• Piracy Megathread - Reddit thread consisting list of all kinds of piracy sites and tools.
• DoubleDouble - Download music directly from Spotify, Apple Music etc.
• Lucida - Successor to DoubleDouble.
• Tidal.qqdl - Beautiful interface for downloading albums from Tidal