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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 · 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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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 · 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
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 · 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 · 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
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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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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Marek @marek.onl · 20/02/2025
Just came across this classic gem.
A screenshot of a conversation on GitHub containing two messages. The first one says:

"With 800 Thumbs Up, 100 comments telling you "hey, we need this thing badly!" a normal company would provide this feature to customers asap."

The second message is a reply:

"open source projects are not a company; you're welcome to contribute though."
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Reposted by Marek
str4d @str4d.xyz · 01/02/2025
I've put together a webpage that renders the ePrint author list I maintain for @eprint.bsky.social. It's a separate website to enable listing by the author name used in papers, rather than the Bluesky display name or handle.
cryptography.social
Cryptography Social
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Reposted by Marek
Matthew Green @matthewdgreen.bsky.social · 26/01/2025
Has anyone played with Meshtastic radios? I’m very interested in how well they work and what improvements could be made.
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Daira-Emma Hopwood @daira.bsky.social · 27/10/2024
"And so, if you can’t do these things [such as getting trans people hormones even though it may be illegal where they are] —that might be disapproved by authority, but are actually perfectly ethical and the right thing to do— because you fear the consequences? Then that leads to a worse society."
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henry @hdevalence.bsky.social · 26/10/2024
not load bearing for just zcash. hero and inspiration for the entire space
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Marek @marek.onl · 18/10/2024
I just explored `rustup doc`, which serves all Rust's docs locally.
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Marek @marek.onl · 20/07/2024
How it started and how it's going.
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Reposted by Marek
str4d @str4d.xyz · 21/06/2024
DM or ping me! It's a manually-vetted list embedded into the bot code, so I'm the one doing updates.
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Marek @marek.onl · 13/06/2024
This actually works, unlike the weird psy op with the flies.
A picture of Putin's head in a urinal.
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Marek @marek.onl · 13/01/2024
A video note about mining Zcash: marek.onl/mining-zec/
marek.onl
Zcash Mining
Video q: Mining Zcash at home.
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Marek @marek.onl · 03/01/2024
This fella has been going strong for a decade now. It went through many short circuits and occasional flame but still in service.
A single board computer in a distribution board.
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Marek @marek.onl · 28/11/2023
Zcash's Zebra has produced its first block: zcashblockexplorer.com/transactions....
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Marek @marek.onl · 02/10/2023
A recent ThinkPad can survive a three meter free fall just fine. I wasn't expecting that when I was picking it up. I'll commit and push more often anyway.
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Marek @marek.onl · 27/09/2023
I like that the Internet is capitalized in English. It feels special. It's not like that in my native tongue, and it should be.
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Marek @marek.onl · 17/09/2023
I know you didn't ask, but this is what's inside a 9V battery.
Seven 1.3V battery cells connected in series.
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Marek @marek.onl · 09/09/2023
What the OS gets when you keep mallocing, but don't match it with free.
Picture of a big heap of white powder on a tea spoon in the kitchen.
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Reposted by Marek
Chelsea Komlo @chelseakomlo.bsky.social · 03/09/2023
Posting these a little late, but I still want to celebrate! A couple weeks ago I had the honor or receiving an early career award at Crypto ‘23 along with Mary Maller and Elizabeth Crites! 🎊🙏💪 Here’s to more to come and to collaborating with great people and great friends
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Reposted by Marek
Conrado @conradoplg.bsky.social · 31/08/2023
I've seen people complaining about Google results and it took me a while to notice the same, but it seems terrible recently. A clear cut example: A single result: www.google.com/search?q=%22... A bunch of results including the one I needed: duckduckgo.com?t=h_&q=%22Se...
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Marek @marek.onl · 25/08/2023
switches love i (this post is about task concurrency)
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str4d @str4d.xyz · 22/08/2023
Next is the Best Early Career Paper: “Fully Adaptive Schnorr Threshold Signatures” by Elizabeth Crites, @chelseakomlo.bsky.social, and Mary Maller (eprint.iacr.org/2023/445)
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Marek @marek.onl · 21/08/2023
I’m going to have two dishwashers at home when I grow up. Having only one doesn’t make sense.
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Marek @marek.onl · 18/08/2023
I don’t think it’s a coincidence the words Sapling and Orchard in Zcash have the same number of letters.
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Marek @marek.onl · 12/08/2023
It’s the Perseids peak tonight.
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Marek @marek.onl · 05/08/2023
Searching for 'error "Invalid search bound (wrong side of point)"' for the past month in Google doesn't return anything relevant. ddg.gg returns an exact match to a static html page in its first result.
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Marek @marek.onl · 04/08/2023
Everything's just heat at the end of the day.
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Marek @marek.onl · 31/07/2023
Emacs 29.1 is out.
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Marek @marek.onl · 07/07/2023
The AT Protocol and whatnot, but the killer feature is that the button in the bottom left corner pixel-perfectly fits profile pictures.
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Marek @marek.onl · 07/07/2023
Searching for '"RUST_BACKTRACE" documentation' in Google didn't provide anything useful. Trying multiple variations didn't help. I tried ddg.gg, and the right result was at the top. I stopped using ddg a while back because of poor results, but I'll give it a try again.
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