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Marek

@marek.onl
87 followers 93 following 96 posts

Computers, math, Zcash marek.onl

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Marek @marek.onl · 23/05/2026
en.wikipedia.org/wiki/Beaver-...
en.wikipedia.org
Beaver-engineered dam in the Czech Republic - Wikipedia
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Marek @marek.onl · 09/04/2026
Take a look at www.rtk-ai.app
rtk-ai.app
rtk — Your AI coding agent deserves less CLI noise
CLI proxy that compresses command outputs for AI coding agents. 60-90% less context pollution. Open source, written in Rust.
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Marek @marek.onl · 28/03/2026
I looked at a photo of myself from ten years ago and thought "Yeah, I've been just stabilizing my APIs since then". Is this how being old feels?
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Marek @marek.onl · 15/02/2026
Would be fun if we went the full circle and started writing just assembly again.
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Reposted by Marek
Álvaro Ramírez @xenodium.bsky.social · 10/02/2026
Introducing winpulse An #emacs package to briefly flash windows on focus change xenodium.com/introducing-... #oss #foss #opensource #elisp #lisp
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Marek @marek.onl · 09/02/2026
Monitors with GPUs in them when?
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Marek @marek.onl · 26/01/2026
I just scored 53,408 on a game of at://2048 with a starting seed of 4034045508. Think you can do better with this exact same seed? Try it out here 2048.blue/seed/4034045... @2048.blue
2048.blue
at://2048
2048 on the AT Protocol. Your games, your data, your AT Protocol.
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Marek @marek.onl · 26/01/2026
I just scored 53,408 on a game of at://2048. Think you can do better? Join in on the fun with @2048.blue. 2048.blue
2048.blue
at://2048
2048 on the AT Protocol. Your games, your data, your AT Protocol.
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Marek @marek.onl · 31/12/2025
Why not the regular `/s` from sed?
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Marek @marek.onl · 11/12/2025
17 with tmux.
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Marek @marek.onl · 11/12/2025
How many LoC can you see on the screen? I'm at 18 and wish it was more.
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Marek @marek.onl · 06/12/2025
It's a folding phone.
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Marek @marek.onl · 04/12/2025
I've had it for years. Same for code review. There's no way back once you try it.
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Marek @marek.onl · 01/12/2025
But one ain't gonna change the world without being totally naive. Also, I don't really feel any more sentient or clever than a bimetal strip.
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Reposted by Marek
Zcash Foundation @zfnd.org · 18/11/2025
🚀 We’re thrilled to announce Zebra 3.0.0, our most feature-rich release yet! Now with NU6.1 support, faster sync, easier production runs, and wider platform availability. zfnd.org/zebra-3-0-0-...
zfnd.org
Zebra 3.0.0 Release: Our Most Feature-Rich Release Ever - Zcash Foundation
We’re excited to announce the release of Zebra 3.0.0—the most feature-rich Zebra release ever!  In addition to supporting NU6.1, the latest network upgrade, we’ve also focused on making Zebra easier…
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Reposted by Marek
Bozhidar Batsov (a.k.a. Bug) @batsov.net · 16/11/2025
A great article which touches on the basics of the GNU Readline library (which almost all modern shells and REPLs use), its long history and its relationship with #Emacs (the source of its default keybindings) twobithistory.org/2019/08/22/r...
twobithistory.org
Things You Didn't Know About GNU Readline
What is GNU Readline and where did it come from?
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Marek @marek.onl · 15/11/2025
windows.net doesn't run on https?
windows.net
.NET - Build modern apps and powerful cloud services
.NET is a developer platform with tools and libraries for building any type of app, including web, mobile, desktop, games, IoT, cloud, and microservices.
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Marek @marek.onl · 10/11/2025
You mean in archinstall? It was a bad decision to ship KDE. It should have been left as an exercise to the user, as in the good old times.
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Marek @marek.onl · 05/11/2025
It's true for stand-ups tho, no?
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Marek @marek.onl · 31/10/2025
A push-up in the handstand is next.
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Marek @marek.onl · 30/10/2025
Had one just now.
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Marek @marek.onl · 27/10/2025
A woman who loves only a warrior.
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Marek @marek.onl · 28/09/2025
I haven't seen a for loop in a long time.
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Marek @marek.onl · 25/09/2025
Yes, but
A Fenix 18650 3500 mAh Li-ion battery cell taken out of its outer wrapper, containing a Panasonic/Sanyo NCR18650GA cell rated at 3300 mAh.
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Marek @marek.onl · 19/09/2025
I don't want no cars or public transport, let me take this on a plane www.rideevolve.com/products/ren...
rideevolve.com
Renegade Diablo
Meet the new Renegade Diablo, crafted for the true off-road adventurer. This board offers more speed with a max of 50 km/h and dual 6374 3500W (7000W) brushless motors, providing unparalleled power. W...
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Marek @marek.onl · 12/09/2025
A healthy person has a hundred wishes, a sick person has only one. My only wish is that NixOS had a wiki like Arch.
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Marek @marek.onl · 05/09/2025
People used to ask if I was German when I was a pup. Now they ask if I'm Russian when I have a weird beard and no hair.
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Marek @marek.onl · 01/09/2025
www.freealan.org
freealan.org
Free Alan – Let's unite and help Alan in his unequal fight against the US jurisdiction.
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Marek @marek.onl · 31/08/2025
Heard: - Having kids is pretty selfish. - Having no kids is pretty selfish.
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Marek @marek.onl · 25/08/2025
The former were chilled and getting married, the latter were dead inside.
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Marek @marek.onl · 25/08/2025
And there's barely any pay for it. Doing a PhD has always seemed attractive to me, but doing it with zero external support felt like martyrdom. Especially after talking to PhD peers who had apartments from parents and those who had nothing.
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Marek @marek.onl · 23/08/2025
It's always fun to self-check-in to someone's Airbnb house just before midnight.
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Marek @marek.onl · 14/08/2025
What else would you like to use?
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Marek @marek.onl · 15/07/2025
I only use openrouter's API in Emacs via gptel and pay with cryptocurrencies for tokens. That way, you can use all AIs at once more conveniently than via their official front-ends (anywhere in Emacs). I only gave openrouter a vanity email address, and transacted in transparent blockchains.
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Marek @marek.onl · 26/06/2025
I use openrouter and charge it with cryptocurrencies. They didn't ask for anything. I use the API with gptel.
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Marek @marek.onl · 21/06/2025
The list of accepted papers at CRYPTO (crypto.iacr.org/2025/accepte...) was released on June 5th.
crypto.iacr.org
Crypto 2025 accepted papers
Crypto 2025
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Marek @marek.onl · 23/05/2025
First time
A screenshot with jumbled-up text that reads:

KERNEL PANIC!
Please reboot your computer. 
Fatal exception in interrupt
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Marek @marek.onl · 19/04/2025
As Nietzsche said.
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Marek @marek.onl · 31/03/2025
After some more drilling and cleaning, the s/c disappeared. I connected some signal paths on the PCB by making some educated and some completely random guesses, and I used the thermal camera again to check that at least the last ASIC still worked. And it did!
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Marek @marek.onl · 31/03/2025
After more drilling, the mf still wouldn't go away, so I took another video. Btw, drilling a PCB is no fun. I was essentially burning the material away and subsequently inhaling it instead of drilling it. It seemed to be a four-layer PCB.
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Marek @marek.onl · 31/03/2025
However, the s/c wouldn't go away, so it was time to take out my new thermal camera. I connected the board to a regulated power supply, set the voltage to 12V, and limited the current to 10A. Here's what I got.
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Marek @marek.onl · 31/03/2025
You can see that the ASIC came off as I removed its heatsink. The other day, I had to use some weird thermal epoxy glue instead of thermal paste since all the thermal pastes I found dissolved in oil.
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Marek @marek.onl · 31/03/2025
I removed the SMDs related to the affected ASIC and drilled out the burned part to get rid of the s/c.
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Marek @marek.onl · 31/03/2025
And this is what it looked like under the heatsink.
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Marek @marek.onl · 31/03/2025
The same failure happened again on the same board. This is what it looked like on the other side of the board.
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Marek @marek.onl · 31/03/2025
I recently managed to fix yet another failure of ASIC mining hw. The Z15 machine has three hashboards, each of which has three ASICs. This is what the hashboard looks like. The hole in the PCB is due to a previous failure in the power circuitry.
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Marek @marek.onl · 26/03/2025
3. Don't be afraid to change subjects. Insights from various areas are valuable.
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Marek @marek.onl · 26/03/2025
2. Spend: - 25% of your time on the hardest problems. You might get lucky. - 50 % on the "bread and butter" problems. - 25 % on joyful things. I came up with SSS this way.
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Marek @marek.onl · 26/03/2025
Adi Shamir's advice to young researchers: 1. Read, read, read. Back in the eighties, I read every cryptography paper out there. Once that became impossible, I read the abstract of every paper. Now I read at least every title.
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Reposted by Marek
Samuel @samuel.fm · 05/03/2025
someone took Emily's code and turned it into a package! www.npmjs.com/package/blue...
npmjs.com
bluesky-comments
Embed Bluesky comments on your website. Latest version: 0.9.0, last published: 2 months ago. Start using bluesky-comments in your project by running `npm i bluesky-comments`. There are no other projec...
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