iiinova — where your digital self keeps evolving

Daniel Steigerwald @steida.bsky.social · 06/10/2026

wouldn't it be simpler to just rewrite react in lean from scratch? js/ts/java/haskell/etc. seem to be dead ends nowadays or maybe even invent a better abstraction for ui

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Daniel Steigerwald @steida.bsky.social · 04/10/2026

writing code is dead, long live reading tests, er, learning formal verification then formalizing all the things

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Daniel Steigerwald @steida.bsky.social · 01/10/2026

Yes, you nailed it imho. It's political.

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Daniel Steigerwald @steida.bsky.social · 24/09/2026

A major obstacle was cost. Proofs were brutally expensive to write by hand. Now AI grinds through the tedious obligations, Lean's kernel checks every step, and we get the part that was always the real work: deciding what "correct" means. Math went first. Let's formalize everything else.

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Daniel Steigerwald @steida.bsky.social · 24/09/2026

It's already happening. AWS modeled Cedar, its authorization policy language, in Lean and proved its core guarantees. Rules about who can access what, the kind of logic most of us implement straight from a ticket.

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Daniel Steigerwald @steida.bsky.social · 24/09/2026

Math is already going this way. Mathlib grows every week. My bet: math isn't special. Anything we can state precisely can be formalized, whether it's access control, payment flows, protocols, tax rules or business logic. We've just been writing it in tickets and hoping the code matched.

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Daniel Steigerwald @steida.bsky.social · 24/09/2026

If you've ever felt flow while debugging, it's the same loop, with a proof at the end. And when AI can generate a hundred proofs, taste matters more: which one is clear, which abstraction is right, which lemma deserves to be reused.

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Daniel Steigerwald @steida.bsky.social · 24/09/2026

That's what formalization demands, and it's why the fun part survives. Writing a proof is hands-on. You state what must be true, split the goal into subgoals, hunt for the right invariant, and watch the goal state shrink line by line.

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Daniel Steigerwald @steida.bsky.social · 24/09/2026

We rarely knew our code was correct. We just hadn't seen it break yet. AI is very good at glue. But the craft was always something else: understanding a problem so precisely that a machine can't misunderstand it.

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Daniel Steigerwald @steida.bsky.social · 24/09/2026

If you loved programming and feel like AI is taking it away from you: the craft isn't disappearing. It's finally beginning. For decades, most of what we called programming was glue. Wiring libraries together, patching edge cases, testing a handful of inputs and hoping the rest behave.

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Daniel Steigerwald @steida.bsky.social · 20/09/2026

Which approach is better, React or Solid? That was a rhetorical question. I think Lean can reconcile both 🙃. Can't wait for WASM to have access to DOM. gist.github.com/aleclarson/0...

gist.github.com

Solid 2 vs Octane

Solid 2 vs Octane. GitHub Gist: instantly share code, notes, and snippets.

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dan @danabra.mov · 27/08/2026

prediction: Lean usage will explode in serious software projects in the next five years

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Daniel Steigerwald @steida.bsky.social · 18/09/2026

Isn't better to use WASM instead?

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P(aul) Frazee @pfrazee.com · 17/09/2026

Increasingly convinced that specs are now the source and that code is an artifact akin to a lockfile.

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Daniel Steigerwald @steida.bsky.social · 10/09/2026

And Evolu as well, because once something is genuinely local-first, we can’t magically fix things on the server. Maximum correctness is a must. I think we’re at the beginning of something big again :-)

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Daniel Steigerwald @steida.bsky.social · 10/09/2026

I learned a ton along the way and eventually came to the conclusion that even the strictest TypeScript isn’t sound enough — and neither are Haskell or Rust. I think one day I’ll rewrite the entire Evolu library in Lean.

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Daniel Steigerwald @steida.bsky.social · 10/09/2026

Hi! I came back to Bluesky to see what’s going on here, and I see you’re into Lean! Me too! I recently implemented my own TypeScript standard library for Evolu, with structured concurrency, resource management, etc., so I could understand all the design decisions myself.

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Daniel Steigerwald @steida.bsky.social · 07/08/2026

It's already happening; when long LLM sessions start producing sentences so dense and complicated, I have a problem understanding them. Yet, they are often correct. That story is super short and super visionary.

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Daniel Steigerwald @steida.bsky.social · 07/08/2026

Finally found time to watch that. That was an excellent talk. Back to the roots of what local-first is and why it's so important. The community thinks it's something like rebranded offline-first, but that's misleading and missing the most important point.

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Daniel Steigerwald @steida.bsky.social · 07/08/2026

@martin.kleppmann.com Thank you for all your work and especially for this talk.

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Daniel Steigerwald @steida.bsky.social · 26/07/2026

This is why I can’t use this app.

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Daniel Steigerwald @steida.bsky.social · 21/11/2025

Delete GitHub spam notification # get notifications, look for the ID of the spam notification gh api notifications # mark that spam notification as read gh api -X DELETE notifications/threads/$NOTIFICATION_ID Also, X is down.

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bad internet @badinternet.oracularhades.com · 18/11/2025

Cloudflare is down, in yet another example of why 5 companies should not control the internet.

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Mark Copelovitch @mcopelov.bsky.social · 26/10/2025

It’s still hard to grasp that there aren’t 4 GOP Reps (who will otherwise be forgotten forever after retiring & likely defeated next year anyway) aren’t interested in going down in history as all-time 🇺🇸 heroes by caucusing with the Dems & giving them the majority to impeach Trump & save the Republic

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Daniel Steigerwald @steida.bsky.social · 25/10/2025

will pay people to read Hayek and Rothbard. That will be pretty expensive.

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Daniel Steigerwald @steida.bsky.social · 25/10/2025

The point of work is to make people suffer for money. Until AI feels pain, it will not replace humans. When robots and artificial intelligence can do everything humans can, it will still make sense to pay people to pay attention to you. For example, artists will pay people to consume their work.

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Daniel Steigerwald @steida.bsky.social · 18/10/2025

I can not use this app with such a silly length limit.

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dan @danabra.mov · 08/10/2025

"it's been a long time coming" this is a team effort from dozens of people over many years, and they all deserve huge credit still, a shoutout to @sebmarkbage.calyptus.eu who did much of the initial design on 7 (!) of these projects and convinced everyone else to work on them for a decade

timeline of rn project leading up to this

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Daniel Steigerwald @steida.bsky.social · 01/10/2025

Chemtrails, když se nad tím člověk zamyslí, není vůbec špatná idea. Pro území Česka bych navrhoval směs složenou z Ozempicu, antidepresiv, a antabusu. #cestavlakem

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Daniel Steigerwald @steida.bsky.social · 13/08/2025

It will. People love socialism and hate capitalism.

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John Brown’s Body @jbrownsbody.bsky.social · 13/08/2025

This is a list of events that have occurred in America in the last six months. How would you describe it if you saw it in any other country?

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Daniel Steigerwald @steida.bsky.social · 12/08/2025

I wrote something else, but hey, I don't want to be reply guy. Carpe diem.

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Daniel Steigerwald @steida.bsky.social · 12/08/2025

Am I understanding correctly that the protocol’s main goal is to make it safe to use a low-entropy, human-memorable password for recovery? Wouldn’t it be better to require strong passwords instead? Thank you

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Daniel Steigerwald @steida.bsky.social · 12/08/2025

Rules are essential. To enforce rules, we need rulers. Classical liberalism/libertarians/ancap are against a single monopolistic ruler (e.g., the State). Without competition, people can not choose what works for them. That's actually the main point of classical liberalism: it's against monopoly.

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Daniel Steigerwald @steida.bsky.social · 12/08/2025

When people think about classical liberalism (both libertarianism and anarchocapitalism use that methodology) without going deeper, they believe the State enforces rules which are helpful for society, while silly libertarians want to have no rules. That's not true.

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Daniel Steigerwald @steida.bsky.social · 12/08/2025

I think we met at local-first conf, did we?

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Daniel Steigerwald @steida.bsky.social · 12/08/2025

First, "The libertarian dream of a free-for-all" There is no such dream. free-for-all is exactly the opposite of it.

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Daniel Steigerwald @steida.bsky.social · 12/08/2025

We all are :-) I just wanted to say you misunderstood something. Have a nice day.

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Daniel Steigerwald @steida.bsky.social · 12/08/2025

That's a straw man. The libertarian dream is a free choice.

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Daniel Steigerwald @steida.bsky.social · 12/08/2025

The only thing worse than a "social network without filtering" is a social network with "filtering" I disagree with. I'm all for content moderation if I'm free to choose.

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Long Covid Advocacy @longcovidadvoc.com · 08/07/2025

🌌 A timely reminder from Prof Brian Cox The inability of the scientific & medical community to move on from the rehab model for #ME & #LongCovid stems from the simple issue that they don't want to be wrong. #paradigmshift

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Daniel Steigerwald @steida.bsky.social · 09/07/2025

I wanted to watch a movie with my kids (1, 3, 5), and I finally found something that we can all watch. Great story, educational, we stuck with it until the end. "I Built a Hidden Forest Shelter Inside a Giant Tree" The rest of the post is in images because of the silly text limit here.

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Daniel Steigerwald @steida.bsky.social · 09/07/2025

It reminds me “The lack of imagination is the biggest challenge we face when fighting for a freer society.” It’s from this short video youtu.be/Eavx1ZVVyzM?...

youtu.be

Welcome to the Statrix | Trevor Burrus

YouTube video by Capital Research Center

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Daniel Steigerwald @steida.bsky.social · 09/07/2025

“Don’t worry about people stealing your ideas. If your ideas are any good, you’ll have to ram them down people’s throats.” — Howard Aiken

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