Unix geek and open source software enthusiast. Tabletop game nerd. Podcaster, musician, multimediatician. Slacker since [Slackware] 12.0

Open source strategy consultant, Governing Board member and WG chair at CHAOSS, OpenUK board, TODO Group Ambassador, runner, sci-fi, 3D printed designs, vegan, world traveler. Opinions my own.

Founder of CISOfy; author of #infosec tools rkhunter and Lynis; involved with NLUUG, #openstandards and #opensource; helping companies to secure their #Linux environment; interested in #sustainability and sharing messages in English, sometimes in Dutch 🇳🇱. My Dutch-only account is also @mboelen (mastodon.nl).

Hacker, IT Infrastructure, Open Storage, Open Source, ProcoliX Hosting, Open Internet Discourse Foundation, HackerHosting, Protagio, Fediversity #Privacy #Sustainability #Transparency 
Husband of Tessa, father of Emma, Huub and Lieke.
Plays Viola, rides horses. Always busy, seldomly quiet.

Founder of the Free Software Database
#developer · #webmaster · #sysadmin

I'm a friendly geek committed to user freedom and computer literacy.
I support Libre and Open Source software.

⸻

#it #foss #free #freesoftware #opensource #software #fedi22 #activism #hacking #programming #italian #linux

Immigrant. Software Developer in Berlin. Previously: Open Knowledge Brasil (@okbr) Founder and CEO, Open Knowledge Foundation (@okfn) Consultant, Wikimedia Foundation Consultant (@wikimediafoundation) in Brazil, Dev in São Paulo, and Particle Physics. 🏳️‍🌈&🏳️‍⚧️ ally.

💪 #OpenSource #OpenKnowledge #Science #Python #Philosophy
❤️ #Cooking #Pets #Politics #ClassicalMusic
🏸 #Badminton #Cycling #Football #SUP
👀 #Disinformation #FarRight

🏡 Berlin
🐣 São Paulo

Free open source software – vegan – sustainability – one rights – finance – environment – transparency – Linux – freedom – fairness – politics

🎉 What if the Fediverse met... in real life?

🌐 FediCon
📍 Vancouver, Canada
🗓️ August 6th to 9th

🎟️ https://2026.fossy.ca/attend/tickets/ (tickets)

🏨 https://2026.fossy.ca/travel/ (discounted lodging)

https://fedicon.ca

See you there?

Hash-Tags: #FediCon #FediCon2026

Need help finding a place to stay:
https://fedicon.ca/where-to-stay

(Managed by @reiver)

Full professor of computer science at Polytechnic Institute of Paris. Co-founder & CSO Software Heritage. Free Software activist. Previously: Debian leader, Open Source Initiative board.

HPC support engineer in Okinawa, Japan. Former neuroscientist, former programmer.

Photography, recreational programming and playing the sanshin are things I do.

Sweden, Osaka and Okinawa are places I particularly care about.

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.

FOSS and #DigitalAutonomy activist. Principal Software Engineer Software for Good. Engineering Lead CommitChange. Houdini Project Leader. Opinions are my own. Nonbinary. Cover photo from: https://t.co/7rVeNC

civilisation is dying and i aint try'na deny it

help your community

I work in #audio, formerly #software & #electronics

I do #opensource #dev #selfhosting

I #design and #print #stickers, #posters, #tshirts

#anarchist #antiFascist #antiOligarch #antiAI #musician #jazz #punk

#2slgbtqAlly #mutualAid

#LongCovid #MECFS #wearAMask
#union #IATSE 680

#LANDBACK #FREEPALESTINE

admin metroholografix.ca
formerly [email protected]

#Wabanaki #SaintJohn #NewBrunswick #Canada

#noAltNoBoost

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

Cara estranho, anarquista, entusiasta de FOSS, escritor e podcaster responsável por cometer o Teatro Escuro do Pensador Louco. Siga-me por tua livre e espontânea vontade.

Man about the world; Expatriated Tasmanian living in California; conference organiser: @NorthBayPython, previously @pyconau and linux.conf.au; #python fan; serves on the @ThePSF Board & Grants WG; queer; frequently toots about @robin. 🇦🇺🏳️‍🌈

"Life is short. Be kind." • Organisiert den #WebMontag #Kiel • Ist #OpenSource Fan – speziell von #Linux, #Nextcloud & #WordPress • Diakonie Schleswig-Holstein • [he/him]

Politica Pirata:
informazione su #whistleblowing #dirittidigitali #sovranitàdigitale #copyright #privacy #cyberwarfare #pirati #Europa #opensource #opendata #PrivacyPride
https://t.me/ppInforma

⚠️ Sono uno dei moderatori di mastodon.uno, ma le opinioni che caratterizzano questo account sono espresse sempre a titolo personale ⚠️

Seeking to develop skills for freedom and autonomy. Interested in organizing and community building and learning practical and facilitating skills for use in practice. How can we create situations for non-capitalistic relations and build coalitions to fight climate collapse in a genocidal capitalist dystopia?

I like repairing bikes and stuff, dumpster dive, foss, coops, old thinkpads, solarpunk, low-tech, copyleft.

Love and solidarity
-acab

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.

I'm very interested in free software and licensing of art and the written word. I'm a member-owner of a local brewpub cooperative. I use SDF and Tilde pub-nixes as well as self host what I can.

At 19:00 UTC Monday through Friday I'm on AnonRadio.net doing a 30 minute news show. I read news I've found around the web.

My preferred pronouns are He/Him/His.