Rafael Sadowski @sizeofvoid
OpenBSD developer | FOSS enthusiast | @[email protected] | shut up and create rsadowski.de /usr/ports Joined November 2010-
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I never thought I would see this. At the #OSSummit keynote on this slide would mention #OpenBSD. Yes, it was pronounced OpenBSD out loud 😁 OpenBSD is the pioneer of hackathons
Heading to the Open Source Summit in Amsterdam! If anyone is there and up for an honest OSS (*BSD) chat, ping me! #OSSummit #BSD As promised, here is the #l2k25 #OpenBSD Blog post: rsadowski.de/posts/2025/l2k…
My "l2k25 - OpenBSD Hackathon Leipzig 2025" blog post is finished and will be released on Sunday. As a bonus, all GitHub supporters received it in today's newsletter. Thank you for your support!
compiler-rt", libunwind, libcxx, libcxxabi 19.1.7 landed in OpenBSD. This gives us a C++ implementation with new C++20, C++23 and C++26 features in the base system. I'm really happy that we managed to do it before 7.8 and I'm also a little proud that I conquered this monster.
Star trail exposure from the ISS, marked by the thick white path of the Moon, Starlink satellites flashing far right, golden city lights streaking across Earth, and arcing stars.
From dead kernel code to ISO 27001 compliance: How I discovered OpenBSD's chflags can create truly immutable logs that even root can't tamper with. Perfect for audit trails when you need forensic integrity that survives system compromise. rsadowski.de/posts/2025/ope… #OpenBSD
KDE/Qt fixes are coming. OpenBSD hackathon is happen.
The time has finally come: #KDE Plasma 6.4 has landed in #OpenBSD marc.info/?l=openbsd-por… Have a nice weekend!
The next #GitHub #Sponsors #newsletter has been sent out. Thanks to those who support me! " rsadowski - 25.06.2025 shut up and hack newsletter #7" github.com/sponsors/sizeo…
#OpenBSD filesystem performance tuning in 2025: dirhash and hope 🤞 New blog post on the one optimization that actually works: rsadowski.de/posts/2025/ffs…
Had the chance to spend 3 weeks in Japan recently - running an ultramarathon, attending an OpenBSD hackathon, and exploring the country. Wrote up the experience for anyone interested in the intersection of hackathons, running, and travel: rsadowski.de/posts/2025/j2k…
#KDE ⚙️ Gear 25.04 has made it into #OpenBSD. Have fun using it kde.org/announcements/…
USB-C, HDMI, DP in 2025 ;)

Bryan Steele 🦋 @canadianbryan
2K Followers 875 Following AKA brynet@. I like tinkering with #OpenBSD, occasionally other Unix-like systems. In other words, not a MCP. @ https://t.co/DQOqRan2Bw @[email protected] He/Him. 🍕🇨🇦
𝚐𝚘𝚗𝚣𝚊�... @x61sh
977 Followers 156 Following Blame it on my elegance. #OpenBSD #Slacker #ActivityPub: @[email protected]
Peter N. M. Hansteen ... @pitrh
4K Followers 4K Following Puffyist, daemon charmer, penguin wrangler. Wrote The Book of PF, rants on security and sanity in IT (lack of) at https://t.co/s9J3ojtfMs. #OpenBSD
Marc Espie @espie_openbsd
2K Followers 243 Following
🇫🇷 Gilles / ج�... @PoolpOrg
2K Followers 1K Following #plakar & #OpenBSD developer, R&D engineer, hypnotist, work psychology student on a break. https://t.co/ieHCJbGUPV. @poolporg.bsky.social
const char *name = "d... @voutilad
499 Followers 932 Following paar paarse paarden 😍: 💻🏞🚴♀️⚾️🏃🌭🐶😺🐡 🤮: 🏊♂️🏙️🐟 #OpenBSD slacker (dv@) a tad obsessed with hardware virtualization. also on 💙sky, same name
vermaden @vermaden
3K Followers 831 Following Lets say it using a "cloud tag" ... FreeBSD BSD UNIX Linux Backup Restore Storage Clusters Distributed Desktop Laptop X11 ThinkPad AMIGA Shell POSIX ZSH ZFS
OpenBSD Now! (@openbs... @openbsdnow
3K Followers 122 Following Unofficial OpenBSD news, updates and thoughts. Mastodon: https://t.co/e0vqJRaWKE. #OpenBSD #WhyOpenBSD #RunBSD #PlayOnBSD #CallForTesting
Salim @al_fulani_
1K Followers 2K Following Sysadmin. OpenBSD, Debian, Ubuntu and AlmaLinux. Nigerian American, Fulani and Muslim.
Joel Carnat ♑️�... @jcarnat
340 Followers 56 Following Most things now happen here 🦥 https://t.co/oCN5iZcOf5
OpenBSD @openbsd
13K Followers 53 Following OpenBSD is a free and secure UNIX-like operating system that emphasizes portability, standardization, correctness, proactive security & integrated cryptography.
Janne Johansson @IcePic_dz
354 Followers 268 Following Leaving this for some blue bird or hairy elephant site.
Aaron A. Glenn @networkservice
5K Followers 3K Following "packet processing & packet processing accessories" my tweets are mine alone human rights over property rights. see also discuss . systems at this username
Allan Jude @allanjude
9K Followers 830 Following FreeBSD and OpenZFS Developer, Co-Founder of @KlaraInc, Co-host of https://t.co/DK2xCFmXIN Podcast 🇨🇦
the network is just a... @overunderlay
2K Followers 5K Following HTTP 301 Moved Permanently to @[email protected] https://t.co/cCMayXWaiQ Foreclosing on sub-prime technical debt™ y'all / all y'all
Todd T. Fries: 𝕏�... @unix2mars
2K Followers 3K Following Wife: @MommaO4CrzyBoys Sons: C,S,E,J Favs OS: OpenBSD Vacation dest: Mars Expect technical topics, humor, and departments of insight.
Franz - Senior AI Bre... @fbettag
896 Followers 393 Following Scala/Liftweb/Akka/Netty Veteran, BSD Hacker, Elixir/Golang User, AI Automation Specialist - Consulting for Fortune 500 to Enterprise
🇺🇸Sam L. Patric... @SamLPatrick
20K Followers 20K Following #USMC #VETERAN #grunt #groundpounder #Lejeunewatersurvivor Constitutional Conservative #PATRIOT Followed by: GYSGT @JessieJaneDuff @RitaCosby @TimRunsHisMouth
max @urbackn2it
26 Followers 535 Following
IRONAMI@いろい�... @iroirolinux
16 Followers 177 Following 準公務員10年以上。 税金の無駄遣いが目につく日々。 それはMicrosoft社への支払っている税金。 これの軽減を図るべくIT機器のLinux(LibreOffice)化を提案。 Note、Zenn、Qiitaで使い分けを模索中。 iroirolinux名で活動。
. @burnerbruhbrah
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fariz @berbariz
6 Followers 80 Following
Dodge1500 @madeinaspergia
2K Followers 6K Following Ni derecha ni izquierda, en la vereda de enfrente. Cuando me aburro desarmo aparatos Philips para arreglarlos o aprender como funcionan.
Rocket Man 🆇 @RocketMan_0173
211 Followers 3K Following OWNER Of Spacex and Tesla company 🚀 CEO. TESLA CAR ENGINEER. AND Founder 🏎️🚘 PRODUCER OF TESLA BOT MACNINE…
Stephen M @M471071M
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chboto$19 @chboto
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Edin Thomas @T_Edin_
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Apoplexic man @bassdude18
25 Followers 122 Following Husband of Faith, Solutions Engineer It is not the critic who counts; not the man who points out how the strong man stumbles
ghislain nkeramugaba @nk_ghislain
756 Followers 518 Following
AEA Consultoria Infor... @aeaconsultoria_
54 Followers 357 Following Soluciones tecnológicas a tu medida. Más de 10 años ayudando a empresas y profesionales a proteger, optimizar y hacer crecer su infraestructura tecnológica.
R @raitmallouk
3 Followers 75 Following
datenwolf – here to... @datenwolf
1K Followers 1K Following Hacker, Physicist, CCC, µC³, INTJ-T – recruiting an army of corvids Fediverse: https://t.co/CbplIR6P7S OrcID: 0000-0002-9413-3474 𓍘𓅱𓀁𓇋𓄿𓅱𓀗
nixfloyd @nixfloyd
25 Followers 78 Following
Shirk Carrol @CarrolShir515
20 Followers 148 Following
Marcel Fagundes @marcelfagundes
23 Followers 484 Following Desenvolvedor apaixonado por código e café. 💡 Transformando código em soluções
Héctor Vega @mxhectorvega
124 Followers 192 Following 🌊 Caribbean Sea 💻 Developer ❤️ Love J&F 🎖️ Marine 🏍️ Biker
Ashley Wolf @Meta_Ashley
2K Followers 1K Following Director, Open Source and AI Programs @GitHub 🫶 Empowering open source developers and raising tiny humans fueled by ☕️ and 💁♀️
Gabriel Nigro🇦🇷... @gabox
812 Followers 3K Following MacOS,Debian user,Networking,Security,Airplanes,Homelab,EDC / ASD father. https://t.co/NYimrVFcRt
Mohammed al-Ramadany @al_ramadan343
1 Followers 278 Following
Anmol @Anmolkoul8
109 Followers 326 Following switching bw antagonist and protagonist of my own story.
The Krazi Speculator @LocoSpeculator
79 Followers 899 Following NOT FINANCIAL/INVESTMENT ADVICE! A fan of science and engineering. Speculating on the future of technologies. Stocks and options. No DMs. Do your own research.
superops @xidianwlc
69 Followers 2K Following 一个vibe coding的探索者,在调动各个AI厂商的AI接口构建最地道的markdown 编辑器,可以github搜索markrender就可以找到它
Phil Krylov @phil_krylov
30 Followers 420 Following
Salai Vedha Viradhan @salaivv
216 Followers 2K Following Wrote the Blender Scripting Cookbook. Into 3D, Computer Graphics, Programming, Design, Books and Great Food. #b3d #python
SalmonNigiri @salmonnigiri28
0 Followers 109 Following
~pasnec-salmyr @pasnec_salmyr
83 Followers 492 Following 𝑳𝒆𝒕 𝒔𝒕𝒓𝒆𝒏𝒈𝒕𝒉 𝒃𝒆 𝒈𝒓𝒂𝒏𝒕𝒆𝒅, 𝒔𝒐 𝒕𝒉𝒆 𝒘𝒐𝒓𝒍𝒅 𝒎𝒊𝒈𝒉𝒕 𝒃𝒆 𝒎𝒆𝒏𝒅𝒆𝒅.
WRU | Tech & Growth @miliswru
38 Followers 1K Following Turning ideas into stories 💡 | Exploring tech, productivity, & creativity | Here to inspire!
4handheld Tech @4handheldTech
65 Followers 465 Following Artificial Intelligence Software development company based in Nigeria.
Someone @fr33s0ftw4r3
99 Followers 2K Following
Hamza Nalwalla @nalwalla_hamza
31 Followers 947 Following Just a normal guy who likes to drink coffee and create stuff.
Daniel 🇧🇷 🇳�... @antunesdanielr
86 Followers 684 Following Just another human being living this world. By the way, i'm a freelancer software developer, unix and opensource/free software enthusiast...
Paul - UI & UX design... @theguyjazzy
505 Followers 2K Following Helping businesses reach their goals with design || DM if you want to learn how design works
6nene6malo6 @6little6fang6
63 Followers 1K Following IMAGINE THE SUN, AS A CABBAGGE. BUT IN YOUR CHEST. yes i was drunk when i wrote that
Apalov @ARQ_2002
74 Followers 377 Following Hi, I am Apalov.. I love to solve real world problems and hack my ways into poorly build systems. Founder of @excaliat_pvt && Security Researcher
Deekshith @deekshithr99
27 Followers 78 Following Aspiring Web Developer | Passionate about creating, responsive websites | HTML | CSS | JavaScript | React.js | Open to Internships & Projects 🎯
𝚐𝚘𝚗𝚣𝚊�... @x61sh
977 Followers 156 Following Blame it on my elegance. #OpenBSD #Slacker #ActivityPub: @[email protected]
Peter N. M. Hansteen ... @pitrh
4K Followers 4K Following Puffyist, daemon charmer, penguin wrangler. Wrote The Book of PF, rants on security and sanity in IT (lack of) at https://t.co/s9J3ojtfMs. #OpenBSD
OpenBSD Journal @openbsdjournal
7K Followers 11 Following
Marc Espie @espie_openbsd
2K Followers 243 Following
🇫🇷 Gilles / ج�... @PoolpOrg
2K Followers 1K Following #plakar & #OpenBSD developer, R&D engineer, hypnotist, work psychology student on a break. https://t.co/ieHCJbGUPV. @poolporg.bsky.social
const char *name = "d... @voutilad
499 Followers 932 Following paar paarse paarden 😍: 💻🏞🚴♀️⚾️🏃🌭🐶😺🐡 🤮: 🏊♂️🏙️🐟 #OpenBSD slacker (dv@) a tad obsessed with hardware virtualization. also on 💙sky, same name
Colin Percival @cperciva
15K Followers 36 Following Computer Scientist, FreeBSD/EC2 maintainer, FreeBSD Release Engineering Lead, AWS Hero, and author of @Tarsnap.
Joel Carnat ♑️�... @jcarnat
340 Followers 56 Following Most things now happen here 🦥 https://t.co/oCN5iZcOf5
OpenBSD @openbsd
13K Followers 53 Following OpenBSD is a free and secure UNIX-like operating system that emphasizes portability, standardization, correctness, proactive security & integrated cryptography.
Janne Johansson @IcePic_dz
354 Followers 268 Following Leaving this for some blue bird or hairy elephant site.
Henning Brauer @HenningBrauer
2K Followers 51 Following http://t.co/jH8cD0V20H, bsws.de, http://t.co/rTXBzasFgG, http://t.co/HTa9VDQSZz, http://t.co/X17356soEY and much more
Allan Jude @allanjude
9K Followers 830 Following FreeBSD and OpenZFS Developer, Co-Founder of @KlaraInc, Co-host of https://t.co/DK2xCFmXIN Podcast 🇨🇦
FreeBSD Foundation @freebsdfndation
20K Followers 67 Following A 501(c)(3) non-profit supporting FreeBSD. We've moved! https://t.co/8Q8UCUh6k4 https://t.co/MIWaXAG9LZ
野辺山ウルトラ... @nobeyama100km
1K Followers 3 Following 星の郷八ヶ岳野辺山高原100kmウルトラマラソン公式アカウントです🏃♂️ 『OVER THE TOP』 新緑の山々に囲まれて、雄大な自然を間近に体感できるウルトラマラソン。
Daniel J. Bernstein @hashbreaker
22K Followers 24 Following Designing cryptography (deployed now: X25519, Ed25519, ChaCha20, sntrup, Classic McEliece) to proactively reduce risks. Coined phrase "post-quantum" in 2003.
typecraft @typecraft_dev
18K Followers 389 Following Husband and father of three. I use Arch (btw). building https://t.co/99tbr142Ej
Kirill A. Korinsky @KirillKorinsky
583 Followers 683 Following
ThePrimeagen @ThePrimeagen
300K Followers 1K Following skill issues: 🟩⬛️⬛️⬛️⬛️⬛️(69/420) https://t.co/qWJnB6p4EP https://t.co/IwY3FTx1ZE https://t.co/TYJ6aSpwYs
Vitalij Mik @xBlackScorpx
350 Followers 410 Following #PHP Developer since 2011 https://t.co/XzTjbQReMX #PHP Youtube Channel https://t.co/Sx0W61sPG2 (German)
Laurence Tratt @laurencetratt
4K Followers 308 Following Shopify / Royal Academy of Engineering Research Chair in Language Engineering.
AWS Open Source @AWSOpen
46K Followers 279 Following Official Twitter feed for all things open source at Amazon Web Services. Learn more at https://t.co/7ajlQMinEQ
No Starch Press @nostarch
36K Followers 3K Following The finest in geek entertainment. Email us: [email protected] We're live M-F, 7am-6pm PDT
Thorsten Ball @thorstenball
36K Followers 968 Following Author of https://t.co/arW0hnVET0 and https://t.co/RN9xXOzhON. @sourcegraph working on @ampcode. Ex-@zeddotdev. Programming where the rubber hits the road.
NCSC IE @ncsc_gov_ie
15K Followers 401 Following Official account of the National Cyber Security Centre for Ireland. X Policy: https://t.co/gHBXKdzWnv
ULTRA💀BLAST @ultrakillblast
127K Followers 2K Following MONSTERS FROM THE ID! Cult Film, Animation, Comics & Art. https://t.co/i4rSPNIrmE / Created & edited by @3rdillusion
Humans Meet AI @HumansMeetAI
9K Followers 0 Following Your number one source for all things AI. All the news, all the tools and all the trends in one place.
BakaArts @TheBakaArts
82K Followers 3K Following Designing the future, one dystopian artwork at a time. 💎PRINTS: https://t.co/1yCIeN3nO4 💎 ⭕ @SurrogatesNFT 💎https://t.co/flsn44ym8T 💙 https://t.co/Bbt34edsZH
Felix Palmen 📯 @zi... @8bitsound
158 Followers 71 Following Dipl.inform., FreeBSD ports committer, musician, C64 fan/coder, hetero cis white male, not proud, no wing, no ally, leaning liberal/ecologist, pro facts/science
Francisco Ribeiro @fraveris
185K Followers 2K Following
Library Mindset @librarymindset
534K Followers 483 Following I love reading books📚| Buy my new book:
Open Source Business ... @osballiance
2K Followers 410 Following Bitte folgen Sie uns auf Mastodon 🐘 Bluesky 🦋 und LinkedIn 👔 https://t.co/P1vN412iGf https://t.co/47z3WBPAtQ
William Morgan @wm
7K Followers 941 Following Twitter was a huge part of my life for 15+ years, but all I loved about it is long gone. Farewell, tweeps. As of Oct 2024 I'm off to bluer skies.
@ericniebler.bsky.soc... @ericniebler
12K Followers 138 Following C++ core compute libraries tech lead at @nvidia, husband, father, @isocpp member, former nomad, and sometimes artist wannabe. Views are mine, not my employer's
World Economic Forum @wef
4.4M Followers 957 Following The international organization for public private cooperation. #wef25
ESA Webb Telescope @ESA_Webb
259K Followers 192 Following Official @ESA feed for James #Webb Space Telescope – an international partnership between NASA, ESA and CSA #WebbSeesFarther #BFFinSpace with @Hubble_Space
70s Sci-Fi Art @70sscifi
205K Followers 199 Following By @AdamRRowe. Check out my art book WORLDS BEYOND TIME: 400+ illustrations, 100+ artists, lots of jokes and facts. https://t.co/KfekD0cbzf
The Linux Foundation @linuxfoundation
576K Followers 9K Following A nonprofit organization enabling mass innovation through open source. #linux #kubernetes #riscv #hyperledger #anuket #openssf #openjs #o3de and more!
Lee Cook @LeeCook_Images
3K Followers 952 Following ✨✨New Zealand Nightscape Winner 2021 ✨✨ 🏔🏔New Zealand Geographic Peoples Choice Winner 2019 https://t.co/u14oJbEIT3💎
~ @m00nbsd
1K Followers 0 Following
Bray Falls @astrofalls
79K Followers 309 Following independent astronomer. exploring space from earth with my own telescopes
SecBSD @SecBSD
2K Followers 4 Following SecBSD is a security-focused UNIX-like operating system based upon #OpenBSD for security researchers, pentesters, bug hunters and #cybersecurity folks. #Hacking
Jim Kwik @jimkwik
384K Followers 917 Following Your Brain & Memory Coach @KwikLearning Top Training Podcast #KwikBrain NYT Bestselling Author of LIMITLESS Free speed-reading training & more link below ⬇️
Daniel Gruss @lavados
9K Followers 530 Following #InfoSec University Professor @ #TUGraz. #meltdown, #spectre, #rowhammer, cache attacks, sustainable security. Produced a side channel security sitcom.
Brendan Gregg @brendangregg
47K Followers 156 Following Makes things fast. Expert in computer performance and eBPF. Intel Fellow, ex-Netflix. Created flame graphs. Aussie. Opinions my own. [email protected]