read-only @readonly42

Joined November 2022

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HTML Developer / Tweets about anything in Portuguese and English / GitHub: https://t.co/2zD9eGWHUG / Linktree: https://t.co/0UlctM34PB

macabeus @bmacabeus

5K Followers 549 Following HTML Developer / Tweets about anything in Portuguese and English / GitHub: https://t.co/2zD9eGWHUG / Linktree: https://t.co/0UlctM34PB

Quaternion Process Theory, Artificial (Intuition, Fluency, Empathy), Patterns for (Gen, LRM, Agentic, Skill) AI,
https://t.co/fhXw0zk5MX

Carlos E. Perez @IntuitMachine

62K Followers 5K Following Quaternion Process Theory, Artificial (Intuition, Fluency, Empathy), Patterns for (Gen, LRM, Agentic, Skill) AI, https://t.co/fhXw0zk5MX

pondering the ponderoos about AI in application in unhinged ways and doing it. building @latentpatterns and the space loom. i created the “ralph loop”. iykyk

geoff @GeoffreyHuntley

82K Followers 2K Following pondering the ponderoos about AI in application in unhinged ways and doing it. building @latentpatterns and the space loom. i created the “ralph loop”. iykyk

Study work with AI + robots. @MITSloan PhD, @Ucsb Assc Prof, @Stanford fellow, @tedtalks, @skillbenchinc cofounder, CEO

Book: https://t.co/OJQa0by9MT

Matt Beane @mattbeane

4K Followers 258 Following Study work with AI + robots. @MITSloan PhD, @Ucsb Assc Prof, @Stanford fellow, @tedtalks, @skillbenchinc cofounder, CEO Book: https://t.co/OJQa0by9MT

I've been in the industry for O(40) years and have written O(1M) LOC. I don't think I'll ever write O(another) line again, but I'll be launching more than ever.

Steve Yegge @Steve_Yegge

41K Followers 15 Following I've been in the industry for O(40) years and have written O(1M) LOC. I don't think I'll ever write O(another) line again, but I'll be launching more than ever.

NeetCode @neetcode1

56K Followers 1K Following building https://t.co/LEf8SyeJKr / tech & programming on YT / prev updated config files at @Google

ThePrimeagen @ThePrimeagen

368K Followers 1K Following skill issues: 🟩⬛️⬛️⬛️⬛️⬛️(69/420) https://t.co/TYJ6aSq4O0 https://t.co/wQJlh4stsc https://t.co/wxeJWY8LmI

Modern Software Engin... @ModernSoftwareX

2K Followers 8 Following 🎥 The Modern Software Engineering Channel: https://t.co/gpRwEybsSZ

Andrej Karpathy @karpathy

3.1M Followers 1K Following I like training large deep neural nets.

Creator @datasetteproj, co-creator Django. PSF board. Hangs out with @natbat. He/Him. Mastodon: https://t.co/t0MrmnJW0K Bsky: https://t.co/OnWIyhX4CH

Simon Willison @simonw

193K Followers 6K Following Creator @datasetteproj, co-creator Django. PSF board. Hangs out with @natbat. He/Him. Mastodon: https://t.co/t0MrmnJW0K Bsky: https://t.co/OnWIyhX4CH

David Crawshaw @davidcrawshaw

12K Followers 1K Following ceo https://t.co/rCiZyr11L3, co-founder and ex-cto @Tailscale. forever a programmer

Creator of the C4 model for visualising software architecture and Structurizr | Author of “The C4 Model” (O’Reilly, released summer 2026)

Simon Brown @simonbrown

28K Followers 755 Following Creator of the C4 model for visualising software architecture and Structurizr | Author of “The C4 Model” (O’Reilly, released summer 2026)

A pragmatist pretending at idealism; reassessing common knowledge and prescribed wisdom. The fact that it works is not the same as a good outcome.

Shawn McCool @ShawnMcCool

11K Followers 358 Following A pragmatist pretending at idealism; reassessing common knowledge and prescribed wisdom. The fact that it works is not the same as a good outcome.

Zed A. Shaw, Writer @lzsthw

19K Followers 445 Following Learn to code at https://t.co/M2PoncbFO6. I stream programming, games, and teach art at https://t.co/a41VlARoyB every day.

Jay Fields @thejayfields

1K Followers 168 Following Software Engineer.

I'm done with Musk and his Nazis, so I've moved to BlueSky (@allenholub.bsky.social) and LinkedIn (https://t.co/EBnkZ8qUC8). LinkedIn is more lively.

Allen Holub. https://... @allenholub

79K Followers 599 Following I'm done with Musk and his Nazis, so I've moved to BlueSky (@allenholub.bsky.social) and LinkedIn (https://t.co/EBnkZ8qUC8). LinkedIn is more lively.

(he) Swede in a Canadian body. Pro 5-pin Bowler. Trusted adviser to software professionals. Barista. Friend. Never blue check. https://t.co/bUTUiacwTi | https://t.co/RJiohbW2yH

☕ J. B. Rainsberger... @jbrains

12K Followers 771 Following (he) Swede in a Canadian body. Pro 5-pin Bowler. Trusted adviser to software professionals. Barista. Friend. Never blue check. https://t.co/bUTUiacwTi | https://t.co/RJiohbW2yH

Ward Cunningham @WardCunningham

57K Followers 503 Following Objects, Patterns, Agile, Wiki

Uncle Bob Martin @unclebobmartin

243K Followers 361 Following Software Craftsman

✨ Phil Calçado @pcalcado

10K Followers 4K Following Led engineering for companies w/ millions of users but no revenue or millions in revenue but no users.

@wycats@techhub.social

OSS enthusiast and @wykittens's parent. Heroku. Co-author of Extensible Web Manifesto. Front-end developer. @wifelette's husband. he/him

Yehuda Katz @wycats

60K Followers 677 Following @[email protected] OSS enthusiast and @wykittens's parent. Heroku. Co-author of Extensible Web Manifesto. Front-end developer. @wifelette's husband. he/him

Tim Pope @tpope

20K Followers 336 Following Retired account. Follow me at https://t.co/aGR8mlP04M and https://t.co/bWb4SWNuWu

Programming wisdom and quotes throughout the years.

The Knuth, the whole Knuth, and nothing but the Knuth, so help me Codd.

Programming Wisdom @CodeWisdom

265K Followers 2K Following Programming wisdom and quotes throughout the years. The Knuth, the whole Knuth, and nothing but the Knuth, so help me Codd.

Eric Evans @ericevans0

29K Followers 55 Following Domain Linguist

Michael Feathers @mfeathers

38K Followers 2K Following Director, R7K Research & Conveyance. Author of Working Effectively with Legacy Code.

Dave Thomas @pragdave

32K Followers 105 Following Programmer turned publisher (but mostly programmer)

Eustáquio Rangel @taq

2K Followers 181 Following Proud father. Headbanger. Developer. https://t.co/Y2W98OlTdL https://t.co/tSuSGya82U https://t.co/MX8R9T7pt0

Writes programs and books. Invents things. Gives talks. Fixes broken software. Hobbies: Stroking cats, playing piano, grumbling, reading, thinking.

Joe Armstrong @joeerl

21K Followers 506 Following Writes programs and books. Invents things. Gives talks. Fixes broken software. Hobbies: Stroking cats, playing piano, grumbling, reading, thinking.

🔎Julia Evans🔍 @b0rk

193K Followers 574 Following find me on Mastodon or Bluesky

Building the future of agent frameworks at Embabel. Creator of Spring. Developer, Entrepreneur, Investor, Author. https://t.co/IBqJ1rMmFe

Rod Johnson @springrod

34K Followers 807 Following Building the future of agent frameworks at Embabel. Creator of Spring. Developer, Entrepreneur, Investor, Author. https://t.co/IBqJ1rMmFe

Christiano Milfont @cmilfont

3K Followers 644 Following Projete para observar, opere com confiança. Observability Driven Design. Romanos 6:23

co-founder of Fog Creek, Trello, Stack Overflow, Glitch, and https://t.co/Jb7fG3eQgU - I have moved to @spolsky@blackrock.city on mastodon

Joel Spolsky @spolsky

159K Followers 559 Following co-founder of Fog Creek, Trello, Stack Overflow, Glitch, and https://t.co/Jb7fG3eQgU - I have moved to @[email protected] on mastodon

Cyclist, Rubyist, author (https://t.co/CzfNcGaidi and https://t.co/ocMeAz8IaY), obsessive programmer, recalcitrant blogger and the antidote for ambition.

Sandi Metz @sandimetz

29K Followers 226 Following Cyclist, Rubyist, author (https://t.co/CzfNcGaidi and https://t.co/ocMeAz8IaY), obsessive programmer, recalcitrant blogger and the antidote for ambition.

Self-appointed Rails policeman, Rails Core Team Member, Principal Engineer. Working to define to future of Ruby and Rails at Shopify.

Rafael França 🇧�... @rafaelfranca

11K Followers 769 Following Self-appointed Rails policeman, Rails Core Team Member, Principal Engineer. Working to define to future of Ruby and Rails at Shopify.

Bertrand Meyer @Bertrand_Meyer

4K Followers 237 Following Software engineer (theory and practice). Author, consultant, professor, project manager.

Software Architect and Modeler | #DDDesign | Systems Transformation | Simplicity | Writes Code | Actor Model | @kalele_io @kalele_domo | em dashes—my own

Vaughn Vernon @VaughnVernon

Pioneered JUnit/xUnit, patterns, XP, TDD. Ex-Apple, Meta, Gusto, Mechanical Orchard. Learning to be me. Blogging at https://t.co/wJpBuSGJyB.

Kent Beck 🌻 @KentBeck

185K Followers 849 Following Pioneered JUnit/xUnit, patterns, XP, TDD. Ex-Apple, Meta, Gusto, Mechanical Orchard. Learning to be me. Blogging at https://t.co/wJpBuSGJyB.

Author on Software Development. Works for Thoughtworks. Also hikes, watches theater, and plays modern board games. He/him.

Martin Fowler @martinfowler

353K Followers 164 Following Author on Software Development. Works for Thoughtworks. Also hikes, watches theater, and plays modern board games. He/him.

Software Engineer, Consultant & Author.
Latest YouTube Video: https://t.co/MXpGzchTSa
Support Me On Patreon: https://t.co/7VzLHbSqU8

Dave Farley @davefarley77

36K Followers 142 Following Software Engineer, Consultant & Author. Latest YouTube Video: https://t.co/MXpGzchTSa Support Me On Patreon: https://t.co/7VzLHbSqU8

Father of three, Creator of Ruby on Rails + Omarchy, Co-owner & CTO of 37signals, Shopify director, NYT best-selling author, and Le Mans 24h class-winner.

DHH @dhh

710K Followers 198 Following Father of three, Creator of Ruby on Rails + Omarchy, Co-owner & CTO of 37signals, Shopify director, NYT best-selling author, and Le Mans 24h class-winner.

Yukihiro Matz @yukihiro_matz

94K Followers 168 Following Matzまたは、まつもとゆきひろ。Rubyのパパ。

Peter Solnica @solnic_dev

7K Followers 328 Following 🛠️ Working on https://t.co/Unk8Zdqsqa (sign up for beta!) 👨‍💻 Elixir/Ruby SDK dev at @getsentry 💜 Creator of Elixir Drops 💦

Creator of @elixirlang. Chief Adoption Officer at @dashbit, where we build https://t.co/FK8F4URbVG and https://t.co/xncEVrvWml.

José Valim @josevalim

55K Followers 94 Following Creator of @elixirlang. Chief Adoption Officer at @dashbit, where we build https://t.co/FK8F4URbVG and https://t.co/xncEVrvWml.

Job: @Shopify
Opinions: Mine
PGP: 4CE9 1B75 A798 28E8 6B1A A8BB 9531 70BC B4FF AFC6
Partner: @ebiltwin and cats.
he/him
@tenderlove@mastodon.social

Aaron Patterson @tenderlove

66K Followers 888 Following Job: @Shopify Opinions: Mine PGP: 4CE9 1B75 A798 28E8 6B1A A8BB 9531 70BC B4FF AFC6 Partner: @ebiltwin and cats. he/him @[email protected]