The best Open Source accounts on Mastodon.
Open Source
ALT43
@[email protected]
Web Tecnológica -> Android ¬ Hard&Soft ¬ Redes ¬ Privacidad ¬ Domótica ¬ Open Source
Joe Brockmeier
@[email protected]Longtime open-source user, advocate, and contributor. I’ve been working with and writing about Linux and open source since 1999. Now writing for LWN.net (@lwn). Become a subscriber here if you're not already! https://lwn.net/subscribe/
I post about Linux, free and open-source software (FOSS), music, cats, politics, writing, and anything else that comes to mind. Hates gen-AI slop.
"When a man loves cats, I am his friend and comrade, without further introduction." Mark Twain
Akseli
@[email protected]KDE
dev by day, hobbyist gamedev by night. Generalist FOSS contributor. Finnish AuDHD neurodisaster. I like metal, industrial and EBM music, and I love FPS, RPG and spacesim games. Pan enby. Panby?
I love FOSS and Linux. I want to help make gaming better on Linux desktop.
Does not want to talk about "AI", LLMs, cryptoscams.
My opinions are always my own. Like my shitposts.
Banner by @Neotheta
Check https://scalie.zone/@aks/112251862581578956 for full image
Avatar by [fefairy](https://www.furaffinity.net/view/59975526/)
My posts often include foul language. They also get deleted in one month.
🇫🇮 Tööttään ja paskon välillä myös suomeksi. Sori siitä.
Andrew Nesbitt
@[email protected]Package Management Nerd, working on mapping the world of open source software https://ecosyste.ms and blogging about package managers at https://nesbitt.io
NLnet Labs
@[email protected]Dutch #NonProfit foundation proudly serving the Internet community since 1999 with #OpenSource software for #DNS and #BGP. Applied research, open standards advocates, bridging technology and policy.
#Clang origins, now #rustlang aficionados. The people behind Unbound, NSD, Routinator, Cascade and much more...
Note: We are not @nlnet, nor are we funded by them or affiliated with them. Lots of 💚 for what they do though!
Michał "rysiek" Woźniak · 🇺🇦
@[email protected]Hacker, activist, free-softie ◈ techie luddite ◈ formerly information security and infrastructure at https://isnic.is/ and https://occrp.org/ ◈ my opinions are my own etc.
(he/him)
⁂
profile image: drawing of a head and shoulders of a cat-person, in a space suit.
banner image: long-exposure photo of a large tent, brightly illuminated from inside, looking as if it is made of lava
#foss #libre #privacy #infosec #fedi22
(public toots CC By-SA 4.0 if applicable)
🇪🇺 🇵🇱 · 🇧🇦 🇮🇸 · 🇺🇦
Rolle Laukkarinen
@[email protected]CTO at @dude, a programmer and administrator of several servers like this one, a *nix user, and an advocate for an open and ethical internet. I work with servers, websites, and open-source projects for a living. I'm safe 🌈 Oh, and I'm a certified Techbro Asshole.
Hylke Bons 🥜
@[email protected]product designer who codes.
I design and build software.
both how it looks, and how it works.
🌱 laid off in 2026 and now running free design services for #FOSS projects. want to become a sponsor? https://planetpeanut.studio/sponsors 🌱
been doing design in #OpenSource like #GNOME, #Pidgin, #Intel, #RedHat, #Xamarin, #VSCode and more for 2 decades. enjoy creating #PixelArt #RetroGames for #GameBoy / #NES.
loves 🍵, 📷, and 🌌.
#NoAI in my work.
I'm a software engineer by trade, an electronics hobbyist and amateur guitarist by night, and a house-rabbit enthusiast and ambassador all the time.
I live in the windswept prairies of Canada.
#RabbitsOfMastodon #rabbit #OpenSource #FreeSoftware #RodentsOfMastodon #electronics #retro #1970s #70s #blinkenlights
LinuxNews.de
@[email protected]Nachrichtenseite für Linux, Freie Software, und Open Source. News, Artikel und Meinung für Desktop und Enterprise.
root@linuxnews:~# rm -rf proprietary_software/ – weil Freiheit keine Dateierweiterung braucht.
Opensourcewerken
@[email protected]Opensourcewerken is dé community voor Nederlandse opensource projecten. Via dit account vind je #liveblogs van IT-events, #blogs en #nieuws. Wees welkom! 🩷
James Endres Howell
@[email protected]#Teaching with #Emacs. Teaching Professor, Department of Biochemistry and Molecular Biology, large university USA, SEIU local 668
Born at Unix Epoch time 21,450,000 (326 ppm CO₂). he/him
#Evolution #Science in #Humanities #Biochemistry #MolecularBiology #Microbiology #CellBiology #MolecularMedicine #Academia #HigherEd #Education #Unions #Solidarity #PSFA #SEIU #Debian #GNU #Linux #GNULinux #FreeSoftware #LibreSoftware #FLOSS #FOSS #GrapheneOS #OrgMode #EmacsLisp
Open Source Business Alliance
@[email protected]Open Source Business Alliance - Bundesverband für digitale Souveränität e.V.
Jonathan Kamens 86 47
@[email protected]he/his
Director of Information Security at 4DMedical.
I work primarily in #infosec, #IT, and #SaaS infrastructure.
ex #USDS (fired by #DOGE)
Dad, old-school hacker, Righteous Indignation Man. Opinions are my own. Follow my blog at @jikblog.
#COVID #CovidIsNotOver #USPol #MAPol #BosPoli #Boston #MA #politics #linux #FOSS #OpenSource #ConsumerActivism #privacy #programmer #hacker #fedi22 #resist https://justmytoots.com/@jik@federate.social
Hello!👋😊
Self-hosted Canon/Zwo photographer, mainly Icelandic landscape
Retired IT company director, 71 yo she/her in Scotland
Owned by a cat
15.2kW solar, 19kWh battery, EV owner
Immunodeficient so 😷 + 9 x 💉
No AI or LLM
I already give to charity and I have nothing for sale
Ally 🏳️🌈🏳️⚧️
I ❤️ ALT text, #OpenSource & 2FA
No bio ∨ posts = no follow
Boost ≠ endorse
I unfollow dormant accounts and use lots of filters
Conditional 2 wk auto-delete
Profile pic = Vegvísir
Intro pinned 👇
Pierre-Yves Lapersonne
@[email protected]Software crafter and digital punker keen on open source, iOS and Android apps.
Interested in software ecodesign, privacy and accessibility too.
Bob Jamieson
@[email protected]#democraticsocialism #LGBTQally #transally #EU #independentScotland #antifascist #SOSNHS #FOSS
Male, retired. Equality for all, regardless of gender, colour or sexual orientation. Society without socialism is not society, but exploitation of the weakest. He/him Lives in Hawick, Scottish Borders @bobjmsn.bsky.social
Header is a drone photo of my former home in Shetland.
Avatar is Aurora borealis over Loch of Voe Shetland
/mastodon/gutocarvalho
@[email protected]
SysAdmin &&
(Cloud | Platform | GitOps) Engineer 
DevOps Enthusiast
> DevOps is a Culture

Father of Bia & Artur
Guardian of && \
Pacoca (Male Golden Retriever) && \
Tweet (Female Tricolor Cat)
Lived in Brasilia from 2009 to 2025
Living in Dourados/MS/Brazil today
Made in Campo Grande/MS/Brazil
Raised in the South #Pantanal Wetland
Version 44.11
Initital build 1981.05.12.0002
#Neurodiversity #ADHD #MDD 
#TDA #TDR
#Okinawa
#KarateDo #ShitoRyuKai
#BlackBelt 🥋
#DevOps #GitOps #CloudNative
#Agile #SRE #IaC #Infrastructure
#OpenSource #OpenKnowledge
#Kubernetes #Rancher #Puppet
#Firestarter #Innovation
#ProScience
Surfing on the 🌎 since 1995.
/me is the founder of Bolha.io
Collective.
The answer is 42
¯\_(ツ)_/¯
Toots in 🇧🇷 and 🇺🇸
Posts will expire in 1 week.
GutoCarvalho.Net & GCN.sh
🙂🙂🙂🧊🧊🧊❤️❤️❤️
So Long, and Thanks for All the Fish.
NormanDunbar
@[email protected]He/Him. Retired Oracle DBA, Toad MVP, developer, husband, geek, no kids, open source contributor. McLaren & Mercedes F1 fan.
Honor Pro400 phone with a great camera. I *try* to take at least 1 half decent photo every day.
In 2020, Apress published my 1st book, 'Arduino Software Internals'. My 2nd, 'Arduino Interrupts', was published in 2023. 'Arduino Assembly Language' is now with my publishers.
Moved back to Scotland from Yorkshire in November 2024.
@NormanDunbar has left Twitter, forever.
Veronica Olsen 🏳️🌈
@[email protected]System Architect ★ Software Developer ★ High Energy Physics PhD at Uni Oslo & CERN ★ Linux ★ Python ★ Open Source ★ Unicode Unicorn ★ ISO 8601 Enthusiast ★ Consumer of Sci-Fi ★ Hobby Writer ★ Born at 336 ppm CO₂ ★ She/They
Open Source: https://novelwriter.io & https://fosstodon.org/@novelwriter
Banner image from Wallpaper Access.
Ben Lockwood, PhD
@[email protected]Ecologist & Geographer @ Penn State University | Founder/Editor of @briefecology | Featured in Nature, Clarkesworld Magazine, Area, Literary Geographies, and elsewhere
Interests include: #ecology #geography #forests #biodiversity #carbon #theory #rstats #writing #photography #socialism #anarchism #ecofiction #FOSS #unions #cycling #basketball