knowledge-base
Opt out of PRISM, the NSA’s global data surveillance program. Stop reporting your online activities to the American government with these free alternatives to proprietary software.
A (somewhat opinionated) list of SQL tips and tricks that I've picked up over the years.
There's so much you can you do with SQL but I've focused on what I find most useful in my day-to-day work as a data analyst and what I wish I had known when I first started writing SQL.
Build your personal knowledge base with TriliumNext Notes.
TriliumNext Notes is a hierarchical note taking application with focus on building large personal knowledge bases.
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A Database for Your Mind.
One shared context across all your apps. Your transcripts inform your notes. Your notes guide your AI. Everything connects through a single folder of plain text and SQLite.
Epicenter is an ecosystem of open-source, local-first apps. Our eventual goal is to store all of your data—notes, transcripts, chat histories—in a single folder of plain text and SQLite. Every tool we build shares this memory. It's open, tweakable, and yours. Grep it, open it in Obsidian, host it wherever you like. The choice is yours.
A collaborative list of great resources about RESTful API architecture, development, test, and performance
The Frontpage of Teams Knowledge. Save and share your team's curation.
Unlock the power of streamlined knowledge management with Digest Club, the solution for teams looking to centralize their information gathering, sharing, and curation. Say goodbye to scattered bookmarks, disjointed Slack conversations, and missed opportunities to showcase your expertise.
Bring projects, wikis, and teams together with AI. The AI workspace where you achieve more without losing control of your data.
Bring projects, wikis, and teams together with AI. AppFlowy is the AI collaborative workspace where you achieve more without losing control of your data. The leading open source Notion alternative.
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This is the Kindle Modding wiki, an online resource which hopes to consolidate all Kindle Modding knowledge into a centralised resource.
The most powerful and extensible open source Wiki software. Make documentation a joy to write using Wiki.js's beautiful and intuitive interface!
GitOps is Continuous Deployment for cloud native applications.
This site aggregates the essence of GitOps to help clear up the confusion about the topic.
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A collection of principles and patterns that shape software systems, teams, and decisions.
The NVD is the U.S. government repository of standards based vulnerability management data represented using the Security Content Automation Protocol (SCAP). This data enables automation of vulnerability management, security measurement, and compliance. The NVD includes databases of security checklist references, security-related software flaws, product names, and impact metrics.
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Build Q&A Community with Answer. An open-source knowledge-based community software. You can use it quickly to build Q&A community for your products, customers, teams, and more.
Hardware Hacking Wiki.
The goal of HardBreak (https://www.hardbreak.wiki/) is to collect knowledge about Hardware Hacking / IoT hacking in one place. There are many great blogs about Hardware Hacking, but it is a rather unpleasant experience to search through multiple blogs in different formats to find the information you need. HardBreak aims to organize all information in one accessible and easy-to-use platform.
Build documentation sites with Astro. Make your docs shine with Starlight. Everything you need to build a stellar documentation website. Fast, accessible, and easy-to-use.
Kalmia is a Go tool with a web interface for managing RsPress documentation. It supports multiple versions, multiple users, and includes a markdown editor for easy edits. Please visit our website for more information on how to use Kalmia and its features.
Make Your Agents: Smarter, Low-Cost, Self-Evolving" -- Community.
Turn every task, trial, and triumph into shared intelligence with OpenSpace.
One Command to Evolve All Your AI Agents: OpenClaw, nanobot, Claude Code, Codex, Cursor and etc.
An inventory of tools and resources about CyberSecurity.
search config information for linux kernel modules.
Local & OnPremise AI. Run LLMs offline. Tap into your private knowledge base. Interact with your documents using the power of GPT, 100% privately, no data leaks
PrivateGPT is a production-ready AI project that allows you to ask questions about your documents using the power of Large Language Models (LLMs), even in scenarios without an Internet connection. 100% private, no data leaves your execution environment at any point.
The wiki that lives in Git. The AI-assisted, open-source alternative to Notion and Confluence: a team wiki that lives in Git, with real-time editing, data tables, whiteboards, offline mode, and first-class AI agents.
Folio is the open-source, self-hosted alternative to Confluence and Notion. People write in the browser, together, in real time. AI agents read and write the same pages. One command to run it yourself.
GTFOBins is a curated list of Unix binaries that can be used to bypass local security restrictions in misconfigured systems.
Exploring how to present Web platform features adoptability.
Baseline gives you clear information about which web platform features work across our core browser set today. When reading an article, or choosing a library for your project, if the features used are all part of Baseline, you can trust the level of browser compatibility. By aligning with Baseline, there should be fewer surprises when testing your site.
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Privacy-first personal knowledge management system that supports Markdown, block-level ref, and bidirectional links. A privacy-first, self-hosted, fully open source personal knowledge management software, written in typescript and golang.
SiYuan is a privacy-first personal knowledge management system, support fine-grained block-level reference and Markdown WYSIWYG.
Uberlab is a collection of how-to guides for Uberspace 7. It is meant as an addition to the Manual, providing hands-on guides on how to get popular (or even niche) software running on our platform.
News on data leaks in France
Runme runs Markdown. DevOps Notebooks Built with Markdown.
Runme is a tool that makes runbooks actually runnable, making it easier to follow step-by-step instructions. Shell/bash, Python, Ruby, Javascript/Typescript, Lua, PHP, Perl, and many other runtimes are supported via Runme's shebang feature. Runme allows users to execute instructions, check intermediate results, and ensure the desired outputs are achieved. This makes it an excellent solution for runbooks, playbooks, and documentation that requires users to complete runnable steps incrementally—making operational docs reliable and much less susceptible to bitrot.
Create, Organize & Share Documents.
Your own private wiki. Self-hosted notes and documentation, light enough to run on a Raspberry Pi.
PdfDing is a selfhosted PDF manager and viewer offering a seamless user experience on multiple devices. It's designed be to be minimal, fast, and easy to set up using Docker.
PdfDing is a PDF manager and viewer that you can host yourself. It offers a seamless user experience on multiple devices. It's designed be to be minimal, fast, and easy to set up using Docker. As all data stays on your server you have full control over your data and privacy.
With its simple, intuitive and adjustable UI, PdfDing makes it easy for users to keep track of their PDFs and access them whenever they need to. With a dark mode and colored themes users can style the app to their liking. As PdfDing offers SSO support via OIDC it can be easily integrated into existing setups.
Explain complex software systems. Align on technical decisions across your software engineering and product teams.
Awesome Docker Compose is your go-to hub for discovering and deploying over 700 popular self-hosted apps effortlessly. Docker Compose, a free and open-source tool, simplifies the process by automatically handling dependencies and services, allowing you to install your favorite apps without the usual hassle.
The only cheat sheet you need. Unified access to the best community driven documentation repositories of the world.
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Start building your knowledge graph. Everything You Know, Connected.
Open source. Self-hosted. Your data stays yours.
A personal knowledge base that turns markdown notes into a semantically-connected, AI-augmented knowledge graph.
Atomic stores knowledge as atoms — markdown notes that are automatically chunked, embedded, tagged, and linked by semantic similarity. Your atoms can be synthesized into wiki articles, explored on a spatial canvas, and queried through an agentic chat interface.
The Global CVE (GCVE) allocation system is a new, decentralized approach to vulnerability identification and numbering, designed to improve flexibility, scalability, and autonomy for participating entities.
While remaining compatible with the traditional CVE system, GCVE introduces GCVE Numbering Authorities (GNAs). GNAs are independent entities that can allocate identifiers without relying on a centralised block distribution system or rigid policy enforcement.
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I, Librarian is an online service that will organize your collection of PDF papers and office documents. It provides a lot of extra features for students and research groups both in industry and academia. It is a reference manager, PDF manager and organizer focused on private group collaboration.
Claude Code + Obsidian Starter Kit.
Turn your Obsidian vault into an AI-powered second brain using Claude Code.
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Offline Knowledge & AI Server. Offline knowledge, maps, and education, installed on a computer you already own.
Project NOMAD fills your machine with Wikipedia, textbooks, and offline maps, plus an optional AI assistant that runs entirely on your own hardware. Once it's set up, it keeps working without the internet.
Self-organizing AI note-taking app that runs models locally.
Reor is an AI-powered desktop note-taking app: it automatically links related ideas, answers questions on your notes and provides semantic search. Everything is stored locally and you can edit your notes with an Obsidian-like markdown editor.
✨ Your best Front-End Tool ✨.
🗂 The Front-End Checklist Application is perfect for modern websites and meticulous developers!
The Front-End Checklist is an exhaustive list of all elements you need to have / to test before launching your website / HTML page to production.
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Interesting dev, AI, SaaS, Marketing resources.
The one-stop station for app builders. UX, Growth, Design. All in one place. Understand why the best apps succeed. Save time on benchmark. Focus on product
We build software for everyone.
Free software is a global collaborative movement to build the world’s best software in a manner that respects the essential rights and freedoms of its users and authors — the freedom to use, study, improve, and share your software.
Ce projet rassemble les trucs et astuces, bonnes pratiques et retours d'expérience des organisatrices et organisateurs de conférences. Après plusieurs années d'existence et d'événements enrichissants, nous avons souhaité centraliser ce savoir accumulé.
This repo has all the resources you need to become an amazing data engineer!
Take back control of your writing.
Meet the new way to take notes, tasks, and organize your thoughts.
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Open source software is made by people just like you. Learn how to launch and grow your project.
Offline Documentation Browser.
Zeal is an offline documentation browser for software developers.
SilverBullet is a note-taking application optimized for people with a hacker mindset. We all take notes. There’s a million note taking applications out there. Wouldn’t it be nice to have one where your notes are more than plain text files? Where your notes essentially become a database that you can query; that you can build custom knowledge applications on top of? A hackable notebook, if you will?
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A recipe website with no backstories, ads, or trackers.
A Knowledge Graph Brain for World Wide Web Surfers. A Customizable AI Research Agent just like NotebookLM or Perplexity, but connected to external sources such as search engines (Tavily, LinkUp), Slack, Linear, Notion, YouTube, GitHub and more.
SurfSense is like a Knowledge Graph Brain 🧠 for anything you see (Social Media Chats, Calender Invites, Important Mails, Tutorials, Recipies and anything ) on the World Wide Web.
OKF is a universal, vendor-neutral format for representing knowledge as plain markdown files with YAML frontmatter. It is not tied to any particular agent, framework, model provider, or serving system.
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All In One KnowledgeOS. Write, Draw, Plan, All at Once. With AI.
A privacy-focussed, local-first, open-source, and ready-to-use alternative for Notion & Miro. One hyper-fused platform for wildly creative minds.
AFFiNE is a workspace with fully merged docs, whiteboards and databases. Get more things done, your creativity isn’t monotone. 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 and ready to use.
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Rosetta Code is a programming chrestomathy site. The idea is to present solutions to the same task in as many different languages as possible, to demonstrate how languages are similar and different, and to aid a person with a grounding in one approach to a problem in learning another. Rosetta Code currently has 1,340 tasks, 399 draft tasks, and is aware of 986 languages, though we do not (and cannot) have solutions to every task in every language.
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A lightweight self-hosted capture layer for links, notes, screenshots and files across your devices.
Most tools focus on organizing information. DropMind focuses on capturing it instantly, from anywhere.
Write Notes at the speed of touch.
A new local-first, privacy-focused and open-source home for your markdown notes.
What a good website does.
A platform-agnostic specification of the technical features every decent website should have — from <title> to /.well-known/security.txt, from WCAG contrast to llms.txt. Written for humans and agents.
the free encyclopedia that anyone can edit.
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