Active Matrix Rooms

Active Programming Matrix Rooms

Find 2737 active programming Matrix rooms and spaces, sorted by real-time message velocity. Stop joining dead rooms — updated live. We only count messages to measure activity — message content is never read, stored, or indexed.

2737 active rooms · sorted by message count · updated live · content never stored

#1

Devio.us

Devious: geeks trying to quell their buyers remorse by convincing each other to also buy $thing. Thanks Jeremy! | Patch your shiz people 🤖 | Stop licking rats people! YOURE NOT MY SUPERVISOR! | I wo

72 msg/hr 136 members pintobyte.com
#2

Ubuntu Development

We make Ubuntu and you can too! Want to help? Get started here: https://ubuntu.com/community/contribute/ubuntu-development Released: 25.04, 24.04.2 LTS Noble Numbat | Devel of Ubuntu (not support) |

67 msg/hr 240 members ubuntu.com
#3

OpenMandriva Cooker

OpenMandriva cooker/development discussion room || Place for deep technical discussions and Technical Committee (TC) meetings. || This channel is for work and technical discussions with OM developers.

36 msg/hr 221 members matrix.org
#4

Monero Dev

Matrix .org users can not receive PM's / see messages from several home servers (including Monero .social). Please consider using a non-Matrix .org account Official repo: https://github.com/monero-pro

29 msg/hr 1,301 members monero.social
#5

Introduction

Hi! We'll help you with the basics of Mozilla Development. Helpful links: https://v.gd/how_to_contribute_ff || https://codetribute.mozilla.org Don't ask to ask, just ask || http://v.gd/goodq Source: h

24 msg/hr 3,760 members mozilla.org
#6

Software Development

Discussions about flight sim coding, development tools and best practices, though we tangentially touch on non-flight-sim-related topics as well.

24 msg/hr 122 members hotstart.net
#7

Monero

[XMR] Be excellent to each other and welcoming to newcomers || getmonero.org || Dev: #monero-dev:monero.social || Price chat: #monero-markets:monero.social || Off topic: #monero-offtopic:monero.social

23 msg/hr 3,981 members matrixrooms.info
#8

postmarketOS mainline

Mainlining Linux phones/tablets | Note: Only for mainline kernel development! Discuss downstream/vendor kernel device porting in #porting:postmarketos.org

23 msg/hr 729 members postmarketos.org
#9

#general-bridged

This is the general chat room of The Cozy Nook, a Matrix space made for people who are interested in technology and technology-related things, such as: Linux distributions, software development and ne

17 msg/hr 85 members vietexa.com
#10

Zellij: General

A terminal workspace with batteries included | Documentation: https://zellij.dev/documentation/ | Discuss, coordinate, help: https://github.com/zellij-org/zellij |

14 msg/hr 729 members matrix.org
#11

Haveno

The Decentralized Monero-based Dex | Dev discussions in #haveno-development:monero.social | Matrix space: #haveno.exchange:monero.social | https://haveno.exchange

10 msg/hr 1,231 members haveno.network
#12

Xonotic Development

Strictly development of the official game | Git, wiki, issues: https://gitlab.com/xonotic/xonotic | beta builds: https://gitlab.com/xonotic/xonotic/wikis/Autobuilds | chat rules: https://xonotic.org/r

4.5 msg/hr 123 members xonotic.org
#13

devlug-bot

IT Security Feeds: https://forum.opnsense.org/index.php?PHPSESSID=02aghbesc7c4embfb9d2qrr9hq&action=.xml;type=rss;board=11.0 https://matrix.org/blog/feed https://my.proxmox.com/en/announcements/rss ht

3.8 msg/hr 48 members tchncs.de
#14

#wikibot

IRC bot for #wikiteam tools | Dashboard: https://wikibot.digitaldragon.dev | https://wiki.archiveteam.org/index.php/Wikibot

3.7 msg/hr 355 members hackint.org
#15

image-rs/image

Encoding and decoding images in Rust

3.3 msg/hr 153 members gitter.im
#16

Luanti irc

The official Luanti channel | Latest version at https://www.luanti.org/en/downloads/ | General, player and modding discussion is on-topic. If in doubt, post here | Responses may take a while, be patie

3.3 msg/hr 73 members matrix.org
#17

Haiku · Development

A low-volume channel intended for Haiku development discussion. | Bugs: https://dev.haiku-os.org | SCM: https://git.haiku-os.org | Search source: https://grok.nikisoft.one/ | Paste: https://gist.githu

3.0 msg/hr 67 members matrix.org
#18

Synapse Admins (community edition)

This room is for community support with Synapse Synapse repo: https://github.com/element-hq/synapse Synapse docs: https://element-hq.github.io/synapse/latest/usage/configuration/config_documentation

2.8 msg/hr 168 members codestorm.net
#19

Room-Finding

Anyone know of a room for finding rooms? | Space: #room-finding-space:zirco.dev | Useful resources: https://matrixrooms.info/ https://masland.tech/mat (not affiliated)

2.8 msg/hr 0 members zirco.dev
#20

LCD Porto

O Laboratório de Criação Digital é um espaço dedicado à criatividade, experimentação e à colaboração nas artes digitais e multimédia. https://lcdporto.org/ https://chat.whatsapp.com/LKGPxhkn51wD9XK4A

2.7 msg/hr 181 members lcdporto.org
#21

FluffyChat Community Support Channel

Official room of the cutest Matrix client. https://fluffy.chat ### Rules: **English only!** No off topic, no "hello", "What's the topic here" spam. Please report issues here: https://github.com/kri

2.7 msg/hr 481 members matrix.org
#22

ListenBrainz

ListenBrainz Community | See #musicbrainz for MusicBrainz and #metabrainz for development

2.7 msg/hr 1,927 members chatbrainz.org
#23

postmarketOS devel

postmarketOS, pmbootstrap and tools development | 🏳️‍🌈🏳️‍⚧️ all are welcome

2.4 msg/hr 490 members postmarketos.org
#24

Matrix HQ

The Official Matrix HQ - chat about Matrix here! | https://matrix.org | https://spec.matrix.org | To support Matrix.org development: https://donorbox.org/keep-matrix-exciting | Code of Conduct: https:

2.4 msg/hr 5,198 members matrix.org
#25

Monero Portugal

[XMR PORTUGAL] || Bridge entre Libera, Matrix e SimpleX Chat || Web: https://getmonero.org || Preço/mercados: #monero-markets:monero.social || Dev: #monero-dev:monero.social || Trocas: #monero-otc ||

2.3 msg/hr 122 members monero.social
#26

YunoHost development

Getting started: https://yunohost.org/dev

2.3 msg/hr 287 members aria-net.org
#27

Linux

🇺🇦🇪🇺 | Talk about the GNU/HURD/Linux operating system and related stuff | be sensible, have nice discussions :) | oh, and https://dontasktoask.com | try not to become a help vampire, we have banhammer

2.2 msg/hr 1,293 members envs.net
#28

орехус-клаб

Масонская лоджия. Тайный Орден общего назначения. Здесь общаются на любые темы кроме острых политических. Делятся своими мыслями, планами, творческими позывами, бесполезными ссылками и опытом использ

2.0 msg/hr 632 members unredacted.org
#29

#openstack-nova

This channel is for Nova development | Development-planning: https://etherpad.opendev.org/p/nova-2026.2-status | PTG doc: https://etherpad.opendev.org/p/nova-2026.2-ptg | This channel is logged at ht

1.9 msg/hr 330 members matrix.org
#30

Fedora Devel

Fedora developers channel |​ end users: please ask for help in #fedora |​ Infra status http:/​/​status.​fedoraproject.​org/​ |​ s390x now in primary koji for rawhide

1.8 msg/hr 885 members fedoraproject.org
#31

PrivSec.dev — Practical Privacy & Security

Technical discussions only. No politics (except strictly related to privacy and security), no conspiracy theories, no "backdoored because proprietary". Any claim of malware/spyware must be backed up w

1.7 msg/hr 361 members arcticfoxes.net
#32

microG

microG Project: https://microg.org/ (site currently down) and https://github.com/microg/ | Bridged with #microg on Libera.chat | Guide, tips: https://www.reddit.com/r/MicroG/wiki/index | We might be a

1.6 msg/hr 120 members matrix.org
#33

development

here we talk programming details that don't usually matter to the end-user. If any important revelations come here, we'll propagate them to the general room.

1.5 msg/hr 127 members stealthy.club
#34

debian-devel

1.4 msg/hr 570 members matrix.debian.social
#35

KDE Development

Release Schedules: http://is.gd/H9mskw | Dev wiki: http://community.kde.org/ | Git: http://invent.kde.org | Newcomers, please read and follow the "Get involved" guide before asking questions here: htt

1.2 msg/hr 1,885 members kde.org
#37

SuperTuxKart

Topic: Official channel for https://SuperTuxKart.net | Source code https://github.com/supertuxkart | Forums https://forum.freegamedev.net/viewforum.php?f=16 | Telegram: https://t.me/STKInternational |

1.2 msg/hr 91 members matrix.org
#38

Embassy

Welcome to the Embassy matrix channel! -- Next-gen async embedded Rust framework -- https://embassy.dev -- https://github.com/embassy-rs/embassy

1.0 msg/hr 2,346 members matrix.org
#39

Off-topic messaging for FOSS-minded geeks

matrix.org/legal/code-of-conduct Friendly lounge for random chit-chat of like-minded technical people. Shared background of most members here: #Delta.Chat:matrix.org #efy_webdev:matrix.org #friendi.ca

1.0 msg/hr 372 members grin.hu
#40

Plasma Development

Place for developers to work on KDE Plasma. Users should discuss topics in #kde:kde.org or https://discuss.kde.org Bugs should be reported using https://bugs.kde.org

1.0 msg/hr 2,321 members calitabby.net
#41

Lite XL

Discussion related to Lite XL usage and development.

0.93 msg/hr 1,459 members matrix.org
#42

OpenDev

#opendev OpenDev is a space for collaborative Open Source software development | https://opendev.org/

0.90 msg/hr 90 members opendev.org
#43

Haiku · Main

Open-source operating system that specifically targets personal computing. | https://haiku-os.org | Nightlies: https://download.haiku-os.org | Bugtracker: https://dev.haiku-os.org | SCM: https://git.h

0.86 msg/hr 660 members matrix.org
#44

Nixpkgs / NixOS contributions

A room to propose and discuss Nixpkgs/NixOS changes. Use #review-requests:nixos.org for PRs in need of review.

0.84 msg/hr 1,123 members nixos.org
#45

Continuwuity Notifications

Read only room containing all notifications from the continuwuity forge. You can see and join in the discussion in https://matrix.to/#/#dev:continuwuity.org.

0.83 msg/hr 110 members continuwuity.org
#46

Jellyfin Android Development

Development discussion of Jellyfin clients for Android and Android TV. See the space for more rooms: #jellyfinorg:matrix.org

0.83 msg/hr 5,910 members matrix.org
#47

Thunderbird Desktop Developers

DESKTOP coders here; ANDROID/iOS at #tb-mobile-dev:mozilla.org || DESKTOP support at #thunderbird:mozilla.org or #openpgp:mozilla.org and PLEASE READ: https://mzl.la/34eAVbB || https://paste.mozilla.o

0.83 msg/hr 1,055 members mozilla.org
#48

Thunderbird Add-on Developers

Check out https://developer.thunderbird.net for information on how to build and update your add-on.

0.83 msg/hr 374 members mozilla.org
#49

iamb-dev

Discussion room for iamb development

0.83 msg/hr 225 members matrixrooms.info
#50

Zuul

Discussion of the project gating system Zuul | Website: https://zuul-ci.org/ | Docs: https://zuul-ci.org/docs/ | Source: https://opendev.org/zuul | Room logs: https://meetings.opendev.org/irclogs/%23z

0.74 msg/hr 401 members opendev.org
#51

AWCY?- The Waiting Room

*Public* Join themcnv mmcommunityx. +awcywaitingroom:matrix.org. Welcome to the artists waiting rooms. DON'T change your default messages setting, nobody will be able to read them if you do change th

0.67 msg/hr 5,487 members matrix.org
#52

JabRef Community Chat

This chat is for users and interested JabRef developers.

0.67 msg/hr 657 members gitter.im
#53

Hackerspace Brussels (HSBXL)

See you Tuesday or Friday at: - https://hsbxl.be/techtuesday - https://hsbxl.be/events/open-coding-day/ for any urgent matter (like "I'm at the door"), we have phones. +32 (0)2 880 40 04 (public pho

0.51 msg/hr 325 members matrix.org
#54

components releases

RSS subscription to components we use and provide as part of etke.cc & #mash-playbook:devture.com & #matrix-docker-ansible-deploy:devture.com Support us: https://github.com/sponsors/etkecc

0.50 msg/hr 53 members etke.cc
#55

#alpine-devel

Alpine Linux distribution development | release 3.23.3 is out!

0.50 msg/hr 774 members matrix.org
#56

QGIS.org

QGIS "Bratislava" 3.40.13 (LTR) and QGIS "Solothurn" 3.44.5 released on Nov 21st || 3.99 in development || https://download.qgis.org || channel logs on https://view.matrix.org/alias/%23qgis:osgeo.org

0.50 msg/hr 194 members osgeo.org
#57

lk2nd

Custom bootloader for Qualcomm devices (apq8084, mdm9607, msm8226, msm8610, msm8909, msm8916, msm8952, msm8953, msm8960, msm8974, msm8994, msm8996) and more! | https://github.com/msm8916-mainline/lk2n

0.50 msg/hr 243 members postmarketos.org
#58

Accrescent

Main room for the Accrescent app store. Primarily intended for questions, suggestions, and development/design discussion. https://accrescent.app. Join #accrescent-space:matrix.org for the space, #accr

0.50 msg/hr 474 members arcticfoxes.net
#59

Haskell

An advanced, purely functional programming language, haskell.org • spam ? call @mods • more rooms: #haskell-irc:matrix.org, #haskell-space:matrix.org • see also: joyful.com/Haskell+map, https://fossto

0.50 msg/hr 419 members matrix.org
#60

Raspiblitz German

Hilfe von der Community Rund um das Thema Raspiblitz

0.50 msg/hr 434 members matrix.yourdevice.ch
#61

LineageOS and other custom ROMs (2026)

matrix.org/legal/code-of-conduct A rooted free and open-source operating system for various devices, based on the Android mobile platform. Post off-topic in #LOS-offtopic:matrix.org. CyanogenMod Fork,

0.50 msg/hr 1,100 members tchncs.de
#62

F-Droid Devs

#fdroid-dev F-Droid development discussion only | Use #fdroid:f-droid.org for general, app- and repo-related matters | Meetings: https://gitlab.com/fdroid/wiki/-/wikis/Weekly-Office-Hours | Room histo

0.40 msg/hr 223 members f-droid.org
#63

Kubuntu Development

We make Kubuntu, and you can too! https://kubuntu.org Want to help? type !Ubottu Please follow the CoC: https://ubuntu.com/community/ethos/code-of-conduct

0.33 msg/hr 98 members ubuntu.com
#64

Ubuntu DMB Public

Public discussions around the Developer Membership application process - https://documentation.ubuntu.com/project/who-makes-ubuntu/developers/dmb-application/ Please follow the CoC: https://ubuntu.com

0.33 msg/hr 35 members ubuntu.com
#66

CalyxOS Development

CalyxOS development channel | Main channel #CalyxOS:matrix.org

0.17 msg/hr 1,083 members matrix.org
#67

KWin

Development and user support channel for KWin: http://community.kde.org/KWin Please use #kde:kde.org for general user questions; #kde-devel:kde.org for general KDE development topics, and #plasma-dev

0.17 msg/hr 277 members kde.org
#68

vvvv

Discussion around vvvv, a visual live-programming environment for creative coding. Download & Changelog: https://thegraybook.vvvv.org/changelog/6.x.html

0.17 msg/hr 929 members matrix.org
#69

asahi-dev

0.17 msg/hr 431 members matrix.debian.social
#71

pulp-dev

PulpCon 2025! https://hackmd.io/@pulp/pulpcon_2025_schedule

0.17 msg/hr 89 members matrix.org
#72

mautrix-go

Discussion about mautrix-go and developing things using it | https://github.com/mautrix/go

0.17 msg/hr 98 members matrixrooms.info
#73

YaST

#space:opensuse.org | Bridged with https://discord.gg/opensuse and ircs://irc.libera.chat:6697/#yast | YaST development channel https://yast.opensuse.org

0.17 msg/hr 1,860 members opensuse.org
#74

Data Structures and Algorithms

Data Structures and Algorithms - Leetcode, Hacker Rank. Euler Project, CodeWars, Competitive Programming, DSA

0.17 msg/hr 71 members matrix.org
#75

/r/Roms General

NO POLITICS - Resurrection of /r/ROMs Matrix Chat for Reddit https://r-roms.gitlab.io/ Be sure to read the rules here: https://r-roms.pages.dev/misc/rules/ Related rooms: #roms-space:matrix.org

0.10 msg/hr 7,081 members matrix.org
#76

postmarketOS porting

For device porting | Slow channel, just ask your question and wait for an answer (can take a while) :) | Get started here: https://wiki.postmarketos.org/wiki/Porting_to_a_new_device | Don't paste logs

0.09 msg/hr 906 members postmarketos.org
#77

Conversations

Join the Conversation! FAQ: https://codeberg.org/iNPUTmice/Conversations/src/branch/master/README.md Changelog: https://codeberg.org/iNPUTmice/Conversations/src/branch/master/CHANGELOG.md Follow th

0.09 msg/hr 9,852 members aria-net.org
#78

Ergo Development

High-level dev discussions and updates.

0.08 msg/hr 323 members matrix.ergonaut.space
#79

#devlol

jeden Donnerstag ab 19:00 Hacknacht | powerdashboard: https://tb.mqtt.at/dashboard/8e670190-79b9-11ee-ba0d-f78243fd82bf?publicId=6f7f9c10-15d7-11ee-bbe2-874708661806

0.08 msg/hr 238 members devlol.org
#80

SC7280 Mainline

SC7280/SM7325/QCM6490 mainline development

0.08 msg/hr 53 members postmarketos.org
#81

CorsixTH Technical

Developer talk and discussion of the code (Discord bridged)

0.08 msg/hr 52 members freedombox.emorrp1.name
#82

Tuwunel💕 Fanclub - Support & Chat

This is the support and chat room about the server, for admins and developers. This is not a **general chat** room! The [tuwunel CoC](https://github.com/matrix-construct/tuwunel/blob/main/CODE_OF_CON

0.08 msg/hr 1,150 members matrix.org
#83

Linux Mint Development

Talk about development, tools, projects, programming languages.

0.08 msg/hr 2,070 members matrix.org
#84

Mobian

Talks about the Mobian project https://mobian.org | Please be respectful: https://www.debian.org/code_of_conduct | Be aware this is a public room which can be logged and archived by anyone. For quest

0.08 msg/hr 2,464 members envs.net
#85

MusicBrainz community

MusicBrainz Community | See #bookbrainz for BookBrainz and #metabrainz for development and other *Brainz’s | Channel is logged; see https://musicbrainz.org/doc/Communication/ChatBrainz for details

0.08 msg/hr 2,198 members chatbrainz.org
#86

#linux-sunxi

Allwinner/sunxi development - Did you try looking at our wiki? https://linux-sunxi.org - Don't ask to ask. Just ask and wait for an answer! - This channel is logged at https://oftc.catirclogs.org/linu

0.08 msg/hr 267 members matrix.org
#87

BitcoinZ: #general

⭐ BitcoinZ: Decentralized. Community-Governed. Built for Builders. BitcoinZ (BTCZ) is a fully decentralized Proof-of-Work blockchain focused on privacy, fairness, and open participation. ⚒ Developer

0.08 msg/hr 5,642 members matrix.org
#88

Jellyfin iOS Development

Development discussion of Jellyfin clients for iOS, iPadOS, macOS, and tvOS. See the space for more rooms: #jellyfinorg:matrix.org

0.08 msg/hr 5,341 members matrix.org
#89

The Apple Basement

Porting mainline kernel to Apple devices vulnerable to checkm8. A7-A11 (32 bit devices not supported) Current available devices for testing: A7: ✅️ A8: ✅️ A8X: ✅️ A9: ✅️ A9X: ✅️ A10: ✅️ A10X: ✅️ A1

0.08 msg/hr 131 members matrix.org
#90

Jellyfin Development

Development discussion of the Jellyfin project.  See the space for more rooms: #jellyfinorg:matrix.org

0.08 msg/hr 7,177 members matrix.org
#91

Jellyfin Client Development

Development discussion of Jellyfin client projects. See the space for more rooms: #jellyfinorg:matrix.org

0.08 msg/hr 6,151 members bonifacelabs.ca
#92

nheko

Packages have changed, please take care. 0.12.1 is out now! https://github.com/Nheko-Reborn/nheko/releases/tag/v0.12.1 Discussion about nheko, the desktop client for Matrix : https://github.com/Nh

0.08 msg/hr 2,131 members matrix.org
#93

Element X Android

Discussions about Element X Android | https://play.google.com/store/apps/details?id=io.element.android.x | https://github.com/element-hq/element-x-android | Nightly builds: https://appdistribution.fir

0.08 msg/hr 1,644 members matrix.org
#94

F-Droid - Free and Open Source Android App Repository

F-Droid, the free and open source app repository (official room) | https://f-droid.org | https://forum.f-droid.org | https://floss.social/@fdroidorg | #fdroid-space:f-droid.org | For development discu

0.08 msg/hr 1,005 members 4d2.org
#95

Music Blocks Development (Sugar Labs)

Development for Music Blocks visual programming language. Are you new to Music Blocks development? Read this: https://github.com/sugarlabs/musicblocks/discussions/3834 Music Blocks is a Sugar Labs

0.08 msg/hr 606 members matrix.org
#96

#openstack-dev

OpenStack development || Support is in #openstack || channel logs http://eavesdrop.openstack.org/irclogs/%23openstack-dev/

0.08 msg/hr 344 members matrix.org