Master programming by recreating your favorite technologies from scratch.

A complete computer science study plan to become a software engineer.

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

A list of Free Software network services and web applications which can be hosted on your own servers

Curated list of project-based tutorials

A collection of inspiring lists, manuals, cheatsheets, blogs, hacks, one-liners, cli/web tools and more.

🎓 Path to a free self-taught education in Computer Science!

a.k.a. Awesome ChatGPT Prompts. Share, discover, and collect prompts from the community. Free and open source — self-host for your organization with complete privacy.

《Hello 算法》：动画图解、一键运行的数据结构与算法教程。支持简中、繁中、English、日本語，提供 Python, Java, C++, C, C#, JS, Go, Swift, Rust, Ruby, Kotlin, TS, Dart 等代码实现

A list of SaaS, PaaS and IaaS offerings that have free tiers of interest to devops and infradev

Virtual whiteboard for sketching hand-drawn like diagrams

FULL Augment Code, Claude Code, Cluely, CodeBuddy, Comet, Cursor, Devin AI, Junie, Kiro, Leap.new, Lovable, Manus, NotionAI, Orchids.app, Perplexity, Poke, Qoder, Replit, Same.dev, Trae, Traycer AI…

An open-source remote desktop application designed for self-hosting, as an alternative to TeamViewer.

A collection of various awesome lists for hackers, pentesters and security researchers

High performance self-hosted photo and video management solution.

Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one

🏡 Open source home automation that puts local control and privacy first.

"The mother of all demo apps" — Exemplary fullstack Medium.com clone powered by React, Angular, Node, Django, and many more

Linux, Jenkins, AWS, SRE, Prometheus, Docker, Python, Ansible, Git, Kubernetes, Terraform, OpenStack, SQL, NoSQL, Azure, GCP, DNS, Elastic, Network, Virtualization. DevOps Interview Questions

A curated awesome list of lists of interview questions. Feel free to contribute! 🎓

Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia

Code at the speed of thought – Zed is a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.

A new bootable USB solution.

A terminal for a more modern age

Run your GitHub Actions locally 🚀

The Patterns of Scalable, Reliable, and Performant Large-Scale Systems

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

Ghidra is a software reverse engineering (SRE) framework

There can be more than Notion and Miro. AFFiNE(pronounced [ə‘fain]) is a next-gen knowledge base that brings planning, sorting and creating all together. Privacy first, open-source, customizable an…

An open-source, self-hosted note-taking service. Your thoughts, your data, your control — no tracking, no ads, no subscription fees.