Open communities directory
These Zulip communities are open to the public, and have opted in to be listed.
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ADSB.lol
ADSB.lol is an open source, unfiltered flight tracker with a focus on open data. Data is provided by people like you, and is available freely via the API and the historical daily archive.
AerynOS
AerynOS is a rolling release Linux distribution being built from the ground up. It was formerly known as SerpentOS and is currently in Alpha status. | Join us to track our progress and feel part of our community.
Agent Client Protocol
The Agent Client Protocol (ACP) standardizes communication between code editors (interactive programs for viewing and editing source code) and coding agents (programs that use generative AI to autonomously modify code). | Learn more at agentclientprotocol.com
ai@columbia
Welcome to ai@columbia. The community gathers faculty members, researchers, scientists, postdocs, and students working on artificial intelligence and related topics, and its applications ranging from biology to history. | This community is a one-stop shop for all AI events/jobs/networking events happening in Columbia with 600+ members. | Our happy hours are on the first Monday of every month! Here is the calendar of events: https://bit.ly/aicolumbia-calendar | Email us at [email protected] or reach us at aicolumbia.com
AIGC
AI generated content or Generative AI refers to the algorithms that can automatically create new content in any digital medium.
,\ AMBDA.
The Ultimate Programming Languages Club.
Antora
Welcome to the Antora user and developer community chat! | This forum is for sharing technical writing and publishing experiences with Antora, an open source static site generator for creating documentation sites based on the AsciiDoc markup language. | We encourage you to join to ask questions, help fellow community members, offer feedback for the developers, get involved as a contributor, or to observe and learn. By participating, you're expected to uphold our Code of Conduct. | If you have trouble accessing this site, please contact [email protected].
Apache Kvrocks
Apache Kvrocks™ is a distributed key value NoSQL database that uses RocksDB as storage engine and is compatible with Redis protocol. | Apache Kvrocks, Kvrocks, and its feather logo are trademarks of The Apache Software Foundation. Redis and its cube logo are registered trademarks of Redis Ltd. | Website: https://kvrocks.apache.org
Apache Polaris (incubating)
Apache Polaris is an open source catalog for Apache Iceberg. Polaris implements Iceberg’s open REST API for multi-engine interoperability with Apache Doris, Apache Flink, Apache Spark, PyIceberg, StarRocks and Trino. | Apache®, Apache Polaris, Apache Iceberg™, Apache Spark™ are either registered trademarks or trademarks of the Apache Software Foundation in the United States and/or other countries.
AQUA Protocol
The Aqua Protocol is a foundational framework for building distributed trust networks. By leveraging hash-chains, cryptographic signatures, and Ethereum-based timestamping, Aqua enables scalable, trustless verification of data integrity and provenance without reliance on centralized authorities. It empowers developers and innovators to create applications that certify, attest, and secure data in an open, private and decentralized way. See https://aquafier.inblock.io/
Artigraph
Artigraph is a tool to improve the authorship, management, and quality of data. It emphasizes that the core deliverable of a data pipeline or workflow is the data, not the tasks.
AsciiDoc
Welcome to the AsciiDoc community chat! | We encourage you to join to ask questions, help fellow community members, offer feedback for the developers, get involved as a contributor, or to observe and learn. By participating, you're expected to uphold our Code of Conduct. | If you wish to participate in the AsciiDoc Working Group, we encourage you to create an Eclipse account and sign the Eclipse Contributor Agreement. If you already did, please set your Eclipse Account URL on your profile.
Asciidoctor
Welcome to the Asciidoctor user and developer community chat! | This forum is for sharing technical writing and publishing experiences with Asciidoctor, an open source processor and publishing toolchain for the AsciiDoc markup language. | We encourage you to join to ask questions, help fellow community members, offer feedback for the developers, get involved as a contributor, or to observe and learn. By participating, you're expected to uphold our Code of Conduct. | If you have trouble accessing this site, please contact [email protected].
Asterinas
Asterinas is an open-source community to advance Rust-based OSes. The flagship project, Asterinas, is a secure, fast, and general-purpose OS kernel, written in Rust and compatible with Linux. See https://github.com/asterinas/asterinas.
Backdrop CMS
The free and open source CMS that helps you build websites for businesses and non-profits.
Barcelona Free Software
Barcelona Free Software is a creators community of Free Software, also known as Open Source, in Barcelona. Our main activity is a Meetup group, an open gathering for developers and users who share a love for software freedom, but sometimes we organize bigger events too (like the Linux App Summit 2019).
BDEV.IO
BECOME DEVLEOPER love computer science love technologies low level things nerd hacky geek
beartype
Open-source GitHub-hosted Python-centric organization enabling efficient Pythonic QA via @beartype, the unbearably fast near-real-time hybrid runtime-static type-checker in pure Python. No one has any idea what that means. This includes me. It's mostly just hype jargon. But big tech has bought onboard! At the end of another code jam hackathon full of only sweat and tears, isn't that what matters most?
BioCypher
Welcome to the BioCypher chat! BioCypher (https://biocypher.org) is an open-source and inclusive framework for making knowledge graphs more accessible to the research community. | Please introduce yourself in the Introductions topic in #general! You can join #announcements for updates on BioCypher releases, #help for general help with the BioCypher software or a particular pipeline, and #development for development news and ideas. | If you are interested in Large Language Models and Conversational AI application to biomedical research and databases, please join the #biochatter channel.
BorrowSanitizer
BorrowSanitizer is a dynamic analysis tool for finding Rust-specific errors in multi-language applications.
BrainGlobe
The BrainGlobe Initiative exists to facilitate the development of interoperable Python-based tools for computational neuroanatomy. | We use this Zulip chat for discussions between developers and for any users who want to get in touch. Anyone is free to join! | For support using the tools, please create a post at the image.sc forum tagging your post with both brainglobe and the tool you're using (e.g. brainreg). | For more information about BrainGlobe please see the website.
BRL-CAD
BRL-CAD is a powerful cross-platform solid modeling system. Supporting BREP/NURBS, polygonal mesh, point clouds, volumetric data, implicit CSG, and more, BRL-CAD specializes in high-performance solid ray tracing of very complex models for analytic purposes. | Among many efforts, current priorities include UI/UX, PBR, conversion, V&V, and GPU+CPU optimization. New contributors are always welcome to help affect development directions. | BRL-CAD is developed by a collective of open source contributors all around the world. BRL-CAD's development is also continuously fiscally sponsored by the U.S. Government. BRL-CAD has been in continuous development since 1979 and was converted to an open source project in 2004.
Bytecode Alliance
The Bytecode Alliance is an open source community dedicated to creating secure new software foundations, building on standards such as WebAssembly and WebAssembly System Interface (WASI).
Calyx
The Calyx Compiler Infrastructure (https://calyxir.org)
Changelog
Changelog makes world-class podcasts for developers. | To join our Zulip, sign up on changelog.com then sign in to request an invite from your dashboard. | No imposters. Everyone is welcome!
ChatOrg
Join our vibrant online community designed specifically for teenagers. Whether you're seeking advice, looking for new friends, or just want to chat about the latest trends, our chat room is the perfect place to connect with peers from around the world.
CISO
A chief information security officer (CISO) is a senior-level executive within an organization responsible for establishing and maintaining the enterprise vision, strategy, and program to ensure information assets and technologies are adequately protected. The CISO directs staff in identifying, developing, implementing, and maintaining processes across the enterprise to reduce information and information technology (IT) risks.
classicpress
ClassicPress is a community-led open-source content management system for creators. It is a fork of WordPress that preserves the TinyMCE editor as the default option. It is lightweight and blazing fast thanks to a leaner codebase since the block editor (Gutenberg) and FSE were removed. | ClassicPress is maintained by ClassicPress Initiative, a 501(c)3 non-profit organization funded by the community. * Get ClassicPress * Support Forums * Documentation * Donate on Open Collective
Clojurians
Welcome to Clojurians Zulip - the place where the Clojure community meets (since nov-2018). And the home of the searchable Clojurians Slack-archive. | Before you signup/login: * participants are expected to adhere to the Clojurians-zulipchat Code of Conduct. If you believe someone is contravening the CoC, please privately message @admins. * for extra productive discussions, please familiarize yourself with the Clojure etiquettes. | Enjoy!
coderefinery
CodeRefinery is a Nordic project which provides training and e-Infrastructure for Research Software Development. This chat is also home to others involved in scientific computing in the Nordics: CodeRefinery (#coderefinery and other streams) and the Research Software Engineers community (#nordic-rse stream) and some more specialized groups. Read more about our streams at https://coderefinery.github.io/manuals/chat/. All are welcome. | There are many things going on here! Join different channels by clicking the gear symbol above the streams list on the left side. Remember that you can also unsubscribe from channels you are not interested in. You may also create new channels for sub-communities, e.g regions, as was done for #finland
Coding Simpletons
An educational online community focused around teaching people the basics of coding helping individuals get started on their path. We are free open source software advocates who also dedicate our time to teaching the community about open source software & alternatives to proprietary services. | It's our goal to show there is more then one option for everything! We encourage you to try free open source software & shift away from proprietary use. We encourage developers to learn & educate what we know to others as the great saying goes "sharing is caring!" We believe it's important for people to discover the potential of free open source software applications by spotlighting ongoing softwares in our community locations.
CogNarr
CogNarr (cognitive narrative) is a project aimed at facilitating group cognition at scale. See https://coda.io/@active-inference/aii/cognitive-narrative-cognarr-ecosystem-63 and https://arxiv.org/abs/2407.18945 for more information. | A long-term goal is a R&D program aimed at developing new societal systems (e.g., economic, financial, governance systems) that are designed to promote social and ecologic well being. See https://www.mdpi.com/2071-1050/12/17/6881 for more information.
Cognify Insight Network
The Cognify Insight Network is a professional community fostering collaboration, knowledge-sharing, and innovation in AI governance. Join peers and thought leaders to explore ethical standards, compliance, and scalable solutions for responsible AI adoption. Let’s stabilize AI projects with solid governance.
conda-forge
Community-led recipes, infrastructure and distributions for the conda ecosystem. * Website: https://conda-forge.org * Github: https://github.com/conda-forge
crashbox
A place for conversations related to any projects from https://github.com/jodersky
CRDT
A Conflict-free Replicated Data Type (CRDT) is a data structure that simplifies distributed data storage systems and multi-user applications. | In many systems, copies of some data need to be stored on multiple computers (known as replicas). Examples of such systems include: | Mobile apps that store data on the local device, and that need to sync that data to other devices belonging to the same user (such as calendars, notes, contacts, or reminders); Distributed databases, which maintain multiple replicas of the data (in the same datacenter or in different locations) so that the system continues working correctly if some of the replicas are offline; Collaboration software, such as Google Docs, Trello, Figma, or many others, in which several users can concurrently make changes to the same file or data; Large-scale data storage and processing systems, which replicate data in order to achieve global scalability.
Crux
Crux helps you share your app's business logic and behavior across mobile (iOS and Android) and web, as a single, reusable core built with Rust.
CTF
CTF for fun
CXX-Qt
CXX-Qt is a code generator based on CXX to bridge the gap between Rust and Qt. | It allows you to expose your own Rust types to Qt, and to call Qt API from Rust. | CXX-Qt has been developed by KDAB and is MIT and Apache dual-licensed.
DataHandwerk
DHW - DataHandwerk toolkit mssql | DHW. Handwerk statt Massenproduktion. Craft instead of mass production. MSSQL based tools for data craftsmen. Individual customization instead of assembly line.
Data Thinking
Data Thinking course.
Dataverse
Dataverse is open source research data repository software: dataverse.org | We have moved to Zulip from Matrix and have updated chat.dataverse.org accordingly. | For feedback on Zulip itself, please use the zulip stream. Thanks!
Deep Symmetry
Sharing and supporting electronic music through open-source software and performances. | Before you sign up or log in: * Participants are expected to adhere to the same Code of Conduct that applies on project pages. | Thanks for joining the conversation!
