Roman Plášil

Participated in first @code4rena formal verification contest with Certora, during the CNY. 🐺 I'm pretty excited about this space, I think if code is law, you'd better have some assurances. Formal verification is a way to get there because it can give you correctness guarantees.

@theepicmap AIdonia

Can you guess the City?

@levelsio @robj3d3 Possibly for facilitating exfiltration of citizens data during first days of DOGE

@robj3d3 Why would you hate him at all?

Story time: Elon deserves less hate than he gets. Last month I flew Cyprus to Bangkok on Emirates with a layover in Dubai. About halfway through the first flight (5 hours) I realised I could connect to wifi for free. Logged in and saw it was because the plane was on Starlink. First time I'd seen this on a plane, I was excited. Checked the speed: 200+ Mbps download. Holy. I spent the rest of the flight working at insane speeds at 35,000 feet. Landed in Dubai, switched to my connection (another Emirates, 6 hours to Bangkok). First thing I did was check the wifi because I wanted to keep working. It was there, but charging $20 through OnAir (SITA). Not Starlink nice, but fine. So I connected and again checked the speed: 8 Mbps. Over 30x slower than Starlink. Still, the package said multi-device, so I figured I'd just use my phone hotspotted to my laptop. Then I accidentally signed in with my boarding pass instead of my email. Looked for a log out. There was none. I tried clearing cache and cookies. Flushed DNS on the MacBook. Nothing worked. I was stuck on the wrong account on my laptop with no way to switch. Spent the next hour debugging while messaging Grok and Claude on my phone, waiting minutes between replies because the connection was that bad. Eventually flagged down a flight attendant. She went to the lead, came back and said they couldn't escalate to OnAir mid-flight and the only path was emailing for a refund after landing. Fine. Not life or death, but the service didn't work as advertised on the device I actually wanted to work on. Half refund felt fair. 6-8 emails back and forth with OnAir and they refused. Their reasoning: because I'd consumed data on my phone (which I only did to debug the laptop issue) my usage was above the threshold, so no refund. The debugging itself was the disqualifier. The money wasn't the point. I wanted them to know the service was broken, and I wanted to be treated fairly when it was. Neither happened. So to recap: wifi 30x slower than Starlink, charges $20 for it, then when it breaks they refuse the refund because you tried to fix it. Closing line of their final email: "The internet service on board an aircraft flying at 900 km/hour relies on complex solutions, and the same experience as at the airport can therefore not always be provided." You can decide, reading this today, whether you want to be @elonmusk or make excuses. Rant over.

@SalamonTomas @kasikp Lidi co nevěří institucím ale věří facebookovemu knezi co šuká hokejisty je už teď až moc

Tohle přesně říkám neustále všem, co chtějí různá opatření na "ochranu dětí". Houby s octem dětí. To je "boomerský" pohled, který vůbec nechápe stav věcí. Děti, které se už narodily do věku sociálních sítí a nic jiného neznají, mají daleko větší implicitní nedůvěru k informacím a institucím. Jestli je někdo ohrožený dezinformacemi, děti to nejsou, jsou to starší dospělí, kteří insitucím ještě věří.

Dělat AI workshop pro školáky znamená jít s kůží na trh 😁 Když vidí, jak snadné je upravovat něčí vzhled, chápou, že "obrázky nejsou důkaz reality". Což nám může přijít smutné, ale taková je prostě doba. Deepfakes na ně budou mít menší dopad, než na naši generaci.

@eigenrobot Ok so I googled a couple of Larson comics explanations and concluded that the problem is that I'm expecting too much

What happens when you post a real Monet and say it’s AI? The coolest art social experiment I’ve seen in a while. Thank you @SHL0MS

@ClaudeDevs I'm so happy with GLM 5.1 and DeepSeek on fireworks.ai

Starting June 15, paid Claude plans can claim a dedicated monthly credit for programmatic usage. The credit covers usage of: - Claude Agent SDK - claude -p - Claude Code GitHub Actions - Third-party apps built on the Agent SDK

@tqbf What are some other great awful languages?

I wrote a thing. This is not a love letter to Emacs, which is one of my more toxic and codependent relationships. sockpuppet.org/blog/2026/05/1…

@AnimarchyYT @Noahpinion That's Russia's whole thing, no? Kill as many of their own soldiers as possible

The fact that more Russian soldiers have died in the Special Military Operation than the TOTAL number of U.S military deaths in WW2, is absolutely insane

@Maximus_8796 @norwalkiian @dim0kq When are you visiting Putin to tell him?

@norwalkiian @dim0kq Lmao As if you think I support my countries war crimes War is a crime All of it Enough

Fiber optics is still happening at the battlefield, although not as much as it used to be. It's extremely pricey now. We used to buy 50km spool for $300, now it's easily $2500. Just so you know

@patrickbennett @mitsuhiko I don't understand why everyone overindexes on install script, it takes literally zero effort to put the malware in index.js

No it’s a damn package manager that will run any executable code attached to a dependency. Should be hard blocked. Disabled by default. Allow list only. Explicit hash. GitHub protection defaults that block changes except by owners. No clue why it hasn’t already been locked down. Start with using pnpm at least.

Published via OIDC trusted publishing btw. I hope this ends this absurd idea that OIDC is the silver bullet to supply chain issues.

Anyone tried to use Claude to build an ontology?

@ErikVoorhees Long horizon agentic tasks

How do I solve this bullshit

@DavidGrudl Chystáte se někdo koupit notebook s procesorem SnapDragon Chystáte se někdo koupit notebook s procesorem SnapDragon

Chystáte se někdo koupit si notebook s procesorem Snapdragon X2?

why: I am so tired of worrying about & spending lots of time fixing memory leaks and crashes and stability issues. it would be so nice if the language provided more powerful tools for preventing these things.

@Noahpinion 50 years ago people would laugh at you for saying something so obvious

Locking a bunch of people up is a prerequisite for good dense walkable mixed-use urbanism

@lauriewired @DefuseSec @h0mbre_ Most of the 10k bugs gonna be stupid rendering bugs or things like a http request getting stuck but yeah 400 security bugs is not really a surprise

I mean, firefox is what, ~25ish million lines of code? in aerospace, the target was ~0.5 defects per 1000 lines of code. Apply that to firefox numbers and you get ~10,000 bugs. aero code was also held to a ridiculous standard, commercial software is probably 5x worse than that. it's also probably non-linear, the bigger your codebase the faster the rate goes up

i honestly didn't even think there was 423 security bugs in firefox. much less so many that 423 could be found and fixed within a month.

@tarek_kekhia @levelsio Litestream

@levelsio I really curious do you have a SQLite specific backup strategy or you depend on the VPS snapshots/backups? And i'm guessing you probably never even had to restore from any backups unless it was unintended human caused db corruption.

SQLite is free

@C2IRIS Probably time to stop saying that users are isolated

Oh no I got plantar fascism

@celestialbe1ng Fair I thought about starting a guild of men to push against misandry that we see nowadays. Only non-lazy and honorable men will be admitted.

You’re still not getting it: women WANT babies VERY MUCH. But there is NOTHING women fear MORE than having a kid with the wrong guy. Bullying me about running out of time changes nothing bc I DO WANT kids, but there is NOTHING I want less than having them with the wrong person