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Lars Wirzenius

@liw@toot.liw.fi
mastodon 4.5.7

Currently working full time on #Radicle (https://radicle.xyz/). On the side, I do training in the #Rust #RustLang language (https://liw.fi/training/rust-basics/)

I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars.

Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media.

I don't accept donations: https://blog.liw.fi/posts/2025/donations/

0 Followers
0 Following
Joined May 18, 2019
pronouns:
he/him, they/them
homepage:
https://liw.fi/
blog:
https://blog.liw.fi/

Posts

liw
Lars Wirzenius
@liw@toot.liw.fi

Currently working full time on # Radicle ( https:// radicle.xyz/ ). On the side, I do training in the # Rust # RustLang language ( https:// liw.fi/training/rust-basics/ ) I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars. Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media. I don't accept donations: https:// blog.liw.fi/posts/2025/donatio ns/

toot.liw.fi
Lars Wirzenius
Lars Wirzenius
@liw@toot.liw.fi

Currently working full time on # Radicle ( https:// radicle.xyz/ ). On the side, I do training in the # Rust # RustLang language ( https:// liw.fi/training/rust-basics/ ) I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars. Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media. I don't accept donations: https:// blog.liw.fi/posts/2025/donatio ns/

toot.liw.fi
@liw@toot.liw.fi · 2d ago

I first learned how to program in 1984 at 14. The tech press said I'd be obsolete by 25, due to age.

About 1990 tech press said the Japanese were building fifth generation computers to make me obsolete.

In 2000, the dot com bubble bursting was said to make me obsolete.

There's been neural networks, no-code, and more, since then, to make me obsolete.

Now it's LLMs.

Excuse me while I sit here and don't panic.

#rant

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liw
Lars Wirzenius
@liw@toot.liw.fi

Currently working full time on # Radicle ( https:// radicle.xyz/ ). On the side, I do training in the # Rust # RustLang language ( https:// liw.fi/training/rust-basics/ ) I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars. Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media. I don't accept donations: https:// blog.liw.fi/posts/2025/donatio ns/

toot.liw.fi
Lars Wirzenius
Lars Wirzenius
@liw@toot.liw.fi

Currently working full time on # Radicle ( https:// radicle.xyz/ ). On the side, I do training in the # Rust # RustLang language ( https:// liw.fi/training/rust-basics/ ) I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars. Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media. I don't accept donations: https:// blog.liw.fi/posts/2025/donatio ns/

toot.liw.fi
@liw@toot.liw.fi · 3d ago

Real name is the name you use and by whom others know you. You can have many, for different contexts. For example, a name within your immediate family, an another among each friend group.

Legal name is the name your government knows you by. Most governments only allow one.

Do not confuse these. Do not say "real" when you mean "legal".

#rant #names

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liw
Lars Wirzenius
@liw@toot.liw.fi

Currently working full time on # Radicle ( https:// radicle.xyz/ ). On the side, I do training in the # Rust # RustLang language ( https:// liw.fi/training/rust-basics/ ) I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars. Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media. I don't accept donations: https:// blog.liw.fi/posts/2025/donatio ns/

toot.liw.fi
Lars Wirzenius
Lars Wirzenius
@liw@toot.liw.fi

Currently working full time on # Radicle ( https:// radicle.xyz/ ). On the side, I do training in the # Rust # RustLang language ( https:// liw.fi/training/rust-basics/ ) I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars. Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media. I don't accept donations: https:// blog.liw.fi/posts/2025/donatio ns/

toot.liw.fi
@liw@toot.liw.fi · Mar 12, 2026

RE: @digitaalinenitsenaisyys@mementomori.social

Alle 200 allekirjoitusta seurvaan tasatuhanteen. Kuka voittaa tämän tonnin?

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liw
Lars Wirzenius
@liw@toot.liw.fi

Currently working full time on # Radicle ( https:// radicle.xyz/ ). On the side, I do training in the # Rust # RustLang language ( https:// liw.fi/training/rust-basics/ ) I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars. Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media. I don't accept donations: https:// blog.liw.fi/posts/2025/donatio ns/

toot.liw.fi
Lars Wirzenius
Lars Wirzenius
@liw@toot.liw.fi

Currently working full time on # Radicle ( https:// radicle.xyz/ ). On the side, I do training in the # Rust # RustLang language ( https:// liw.fi/training/rust-basics/ ) I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars. Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media. I don't accept donations: https:// blog.liw.fi/posts/2025/donatio ns/

toot.liw.fi
@liw@toot.liw.fi · Mar 11, 2026

I posted on my blog about having avoided computing mainstream.

https://blog.liw.fi/posts/2026/path-less-traveled/

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liw
Lars Wirzenius
@liw@toot.liw.fi

Currently working full time on # Radicle ( https:// radicle.xyz/ ). On the side, I do training in the # Rust # RustLang language ( https:// liw.fi/training/rust-basics/ ) I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars. Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media. I don't accept donations: https:// blog.liw.fi/posts/2025/donatio ns/

toot.liw.fi
Lars Wirzenius
Lars Wirzenius
@liw@toot.liw.fi

Currently working full time on # Radicle ( https:// radicle.xyz/ ). On the side, I do training in the # Rust # RustLang language ( https:// liw.fi/training/rust-basics/ ) I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars. Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media. I don't accept donations: https:// blog.liw.fi/posts/2025/donatio ns/

toot.liw.fi
@liw@toot.liw.fi · Mar 06, 2026

Move fast and break Big Tech things.

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liw
Lars Wirzenius
@liw@toot.liw.fi

Currently working full time on # Radicle ( https:// radicle.xyz/ ). On the side, I do training in the # Rust # RustLang language ( https:// liw.fi/training/rust-basics/ ) I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars. Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media. I don't accept donations: https:// blog.liw.fi/posts/2025/donatio ns/

toot.liw.fi
Lars Wirzenius
Lars Wirzenius
@liw@toot.liw.fi

Currently working full time on # Radicle ( https:// radicle.xyz/ ). On the side, I do training in the # Rust # RustLang language ( https:// liw.fi/training/rust-basics/ ) I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars. Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media. I don't accept donations: https:// blog.liw.fi/posts/2025/donatio ns/

toot.liw.fi
@liw@toot.liw.fi · Feb 28, 2026

Tänäkään vuonna en halua edes kuulla Euroviisuista tai sitä Ylen kilpailusta, jossa pyritään viisuihin esiintymään. Kansanmurha Gazassa jatkuu, boikottia ei ei ole syytä höllentää.

Suodattimet fedissä edelleen päällä. Harkitsen Ylen ja muiden uutislähteiden välttämistä kunnes median tämänvuotinen viiisukiima on ohi.

#rant

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liw
Lars Wirzenius
@liw@toot.liw.fi

Currently working full time on # Radicle ( https:// radicle.xyz/ ). On the side, I do training in the # Rust # RustLang language ( https:// liw.fi/training/rust-basics/ ) I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars. Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media. I don't accept donations: https:// blog.liw.fi/posts/2025/donatio ns/

toot.liw.fi
Lars Wirzenius
Lars Wirzenius
@liw@toot.liw.fi

Currently working full time on # Radicle ( https:// radicle.xyz/ ). On the side, I do training in the # Rust # RustLang language ( https:// liw.fi/training/rust-basics/ ) I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars. Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media. I don't accept donations: https:// blog.liw.fi/posts/2025/donatio ns/

toot.liw.fi
@liw@toot.liw.fi · Feb 28, 2026

I've not had much time for riki, my ikiwiki-compatible static site generator, because work has kept me busy. This morning I added an initial implementation of the img directive. It seems to work, but testing is not comprehensive, and it doesn't find the image using ikiwiki "linking rules". Still, it's progress. Slowly, but uncertainly, riki is taking shape.

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liw
Lars Wirzenius
@liw@toot.liw.fi

Currently working full time on # Radicle ( https:// radicle.xyz/ ). On the side, I do training in the # Rust # RustLang language ( https:// liw.fi/training/rust-basics/ ) I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars. Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media. I don't accept donations: https:// blog.liw.fi/posts/2025/donatio ns/

toot.liw.fi
Lars Wirzenius
Lars Wirzenius
@liw@toot.liw.fi

Currently working full time on # Radicle ( https:// radicle.xyz/ ). On the side, I do training in the # Rust # RustLang language ( https:// liw.fi/training/rust-basics/ ) I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars. Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media. I don't accept donations: https:// blog.liw.fi/posts/2025/donatio ns/

toot.liw.fi
@liw@toot.liw.fi · Feb 27, 2026

RE: @void@mastodontti.fi

Juuri nyt tarvitaan vielä 714 allekirjoitusta. Melkein kasassa. Joko allekirjoitit?

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liw
Lars Wirzenius
@liw@toot.liw.fi

Currently working full time on # Radicle ( https:// radicle.xyz/ ). On the side, I do training in the # Rust # RustLang language ( https:// liw.fi/training/rust-basics/ ) I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars. Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media. I don't accept donations: https:// blog.liw.fi/posts/2025/donatio ns/

toot.liw.fi
Lars Wirzenius
Lars Wirzenius
@liw@toot.liw.fi

Currently working full time on # Radicle ( https:// radicle.xyz/ ). On the side, I do training in the # Rust # RustLang language ( https:// liw.fi/training/rust-basics/ ) I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars. Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media. I don't accept donations: https:// blog.liw.fi/posts/2025/donatio ns/

toot.liw.fi
@liw@toot.liw.fi · Feb 26, 2026

Volume of code produces is not the same as productivity.

Shareholder value increased is not the same as productivity.

Helping people is the metric for productivity to use.

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liw
Lars Wirzenius
@liw@toot.liw.fi

Currently working full time on # Radicle ( https:// radicle.xyz/ ). On the side, I do training in the # Rust # RustLang language ( https:// liw.fi/training/rust-basics/ ) I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars. Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media. I don't accept donations: https:// blog.liw.fi/posts/2025/donatio ns/

toot.liw.fi
Lars Wirzenius
Lars Wirzenius
@liw@toot.liw.fi

Currently working full time on # Radicle ( https:// radicle.xyz/ ). On the side, I do training in the # Rust # RustLang language ( https:// liw.fi/training/rust-basics/ ) I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars. Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media. I don't accept donations: https:// blog.liw.fi/posts/2025/donatio ns/

toot.liw.fi
@liw@toot.liw.fi · Feb 24, 2026

While I don't like to travel, and I dislike planning travel, Wikivoyage is a really helpful site when I have to.

https://en.wikivoyage.org/wiki/Main_Page

#travel #wikivoyage

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liw
Lars Wirzenius
@liw@toot.liw.fi

Currently working full time on # Radicle ( https:// radicle.xyz/ ). On the side, I do training in the # Rust # RustLang language ( https:// liw.fi/training/rust-basics/ ) I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars. Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media. I don't accept donations: https:// blog.liw.fi/posts/2025/donatio ns/

toot.liw.fi
Lars Wirzenius
Lars Wirzenius
@liw@toot.liw.fi

Currently working full time on # Radicle ( https:// radicle.xyz/ ). On the side, I do training in the # Rust # RustLang language ( https:// liw.fi/training/rust-basics/ ) I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars. Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media. I don't accept donations: https:// blog.liw.fi/posts/2025/donatio ns/

toot.liw.fi
@liw@toot.liw.fi · Feb 20, 2026

Hot take, so controversial it counts as trolling: all notifications should default "off". Anything that can interrupt or distract the person using a computer or other device should be explicitly turned on by that person.

There are exceptions for things that can cause serious harm if ignored. "You've got mail" is not an exception. Neither is "someone liked your social media post".

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liw
Lars Wirzenius
@liw@toot.liw.fi

Currently working full time on # Radicle ( https:// radicle.xyz/ ). On the side, I do training in the # Rust # RustLang language ( https:// liw.fi/training/rust-basics/ ) I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars. Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media. I don't accept donations: https:// blog.liw.fi/posts/2025/donatio ns/

toot.liw.fi
Lars Wirzenius
Lars Wirzenius
@liw@toot.liw.fi

Currently working full time on # Radicle ( https:// radicle.xyz/ ). On the side, I do training in the # Rust # RustLang language ( https:// liw.fi/training/rust-basics/ ) I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars. Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media. I don't accept donations: https:// blog.liw.fi/posts/2025/donatio ns/

toot.liw.fi
@liw@toot.liw.fi · Feb 20, 2026

Riippuvuus yhdysvaltalaisista tietoteknisistä palveluista on nyt tapetilla. Asia tulee joka päivä tulee journalistisissa medioissa vastaan. Tänään viimeksi Long Playn perjantikirjeessä.

Digitaalisen itsenäisyyden kansalaisaloitekin mainitaan usein, vaikka ei aina.

cc @laurilavanti@mastodontti.fi ​@digitaalinenitsenaisyys@mementomori.social

https://mailchi.mp/longplay.fi/suomi-voisi-8259675?e=b4deb0e3cc

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liw
Lars Wirzenius
@liw@toot.liw.fi

Currently working full time on # Radicle ( https:// radicle.xyz/ ). On the side, I do training in the # Rust # RustLang language ( https:// liw.fi/training/rust-basics/ ) I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars. Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media. I don't accept donations: https:// blog.liw.fi/posts/2025/donatio ns/

toot.liw.fi
Lars Wirzenius
Lars Wirzenius
@liw@toot.liw.fi

Currently working full time on # Radicle ( https:// radicle.xyz/ ). On the side, I do training in the # Rust # RustLang language ( https:// liw.fi/training/rust-basics/ ) I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars. Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media. I don't accept donations: https:// blog.liw.fi/posts/2025/donatio ns/

toot.liw.fi
@liw@toot.liw.fi · Feb 17, 2026
Naisasialiitto Unioni kerää allekirjoituksia My Voice, My Choice -kansalaisaloitteeseen EU:n laajuisen aborttioikeuden puolesta. Allekirjoitin. On kiire, deadline on huomenna. (EDIT: 23.2. keskiyö) https://actionnetwork.org/petitions/henna-virkkunen-puolusta-aborttioikeutta
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liw
Lars Wirzenius
@liw@toot.liw.fi

Currently working full time on # Radicle ( https:// radicle.xyz/ ). On the side, I do training in the # Rust # RustLang language ( https:// liw.fi/training/rust-basics/ ) I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars. Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media. I don't accept donations: https:// blog.liw.fi/posts/2025/donatio ns/

toot.liw.fi
Lars Wirzenius
Lars Wirzenius
@liw@toot.liw.fi

Currently working full time on # Radicle ( https:// radicle.xyz/ ). On the side, I do training in the # Rust # RustLang language ( https:// liw.fi/training/rust-basics/ ) I have 40 years of experience, almost 30 of it working full time. I have code running on billions of devices, on all continents, on all oceans, in orbit, and on Mars. Please don't post or re-post fediverse posts via bridges, or otherwise, on commercial social media. I don't accept donations: https:// blog.liw.fi/posts/2025/donatio ns/

toot.liw.fi
@liw@toot.liw.fi · Feb 14, 2026

Large language models do not think and do not feel.

Therefore large language models must not behave as if they are human.

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