Jadi

The Internet Is Becoming the Street With Checkpoints
> A thought experiment about freedom, risk, and control
https://jadi.substack.com/p/the-internet-is-becoming-the-street
I’ve been robbed on the street. There are sex predators walking on the sidewalk. You might fall while trying to jump over a canal. I’ve even heard about shootings and knife attacks. Streets are dangerous, so why not pass a law stating that everyone stepping outside their home must show ID and fill out a form explaining where they are going, why they are going there, and for how long? This would surely make our streets much safer - although, of course, things could still happen. And naturally, people under 18 wouldn’t be allowed on streets the state considers harmful.
Silly? Totalitarian? Non-functional? Counter-productive? Yes to all of the above. And on top of that, it wouldn’t even help much with crime rates. Violent crimes still happen in prisons, where everyone is known, constantly watched, and prevented from carrying anything remotely dangerous.
Now think about the internet and the laws currently being proposed. Age restrictions. Identity checks. It’s not a perfect analogy, but both point in the same direction. Once you allow the state to “age-check” you on porn sites (read: identify everyone, record everything they do forever, and share it with whoever they want), why wouldn’t they require age checks on Reddit (which is full of NSFW content) or identity verification on GitHub (which hosts sensitive code)?
But does this mean anyone should be able to access anything on the web? In my opinion, no. Let’s return to the street analogy. When you go to a bar, you show an ID and get your drink. The bartender doesn’t copy your ID, doesn’t sell your information, doesn’t record when you arrived or left, doesn’t log how many shots you had (or which brand), doesn’t take your photo, and certainly doesn’t report your presence to anyone.
Online age verification should work the same way. A zero-knowledge proof that confirms your age without revealing anything else to the server. This technology is still relatively new, and we need to give it time to mature before forcing everyone to adopt a specific solution.
#privacy #zkp #humanrights

2025-12-15 21:41:15 UTC

dude

2025-10-29 17:17:43 UTC

Both Azure (https://www.githubstatus.com/) and GitHub (https://www.githubstatus.com/) are having issues.
But don't panic! Nostr is "up".

2025-09-19 00:23:06 UTC

Working in software is funny/strange! you can be a senior in one field, then brave enough to switch, and suddenly you’re a newbie learning the "basics".
No fear, no worries. Just time to learn.

2025-09-11 17:18:41 UTC

Travelling for 15 days without stable internet / device. Back home. ~1000 emails and trying to remember what I was doing in my life :)

2025-08-20 22:05:13 UTC

Looking for what to read next. May give "Tiny Experiments" a try. Any other suggestions?
#books

2025-08-14 16:55:19 UTC

Changing my job. Going to a blockchain company :D

2025-08-14 16:54:39 UTC

Pub/Sub is like sending group texts… but for servers.
Instead of "Hey, here’s an update!", you publish once and anyone subscribed gets it instantly.
Been playing with NATS lately & decided to record a video about it.
https://www.youtube.com/watch?v=6YYbZhnGCSs

2025-07-25 16:52:15 UTC

PocketPal is an Open Source & Free software which lets you run LLMs (actually SLMs) on your tablet & phone.
https://youtu.be/BAHyuoJCISk
#llama #gemma #slm #ios #android

2025-06-11 22:41:33 UTC

1_000_000_000th repository on github is called "shit" :)
https://github.com/AasishPokhrel/shit/issues/1

2025-06-11 19:28:03 UTC

At job ... chosing the best bar chart for showing shit. Why? because the person doing this is layed off :D

2025-05-26 02:21:23 UTC

Self Hosters of the World Unite

2025-05-22 20:41:11 UTC

They are shutting Pocket App down! I've been an avid user from the beginning; when it was "read it later".

2025-05-17 16:56:30 UTC

Did you know that the most talked about automation tools is a free software? Yes, n8n is free; as in freedom.
Learn how to install n8n for free using Docker, build your first workflow, and understand the basics of this powerful open-source automation tool.
https://www.youtube.com/watch?v=ZT5GgIgrHxE

2025-05-15 23:51:58 UTC

number of stackoverflow questions over time.
source: https://blog.pragmaticengineer.com/stack-overflow-is-almost-dead/
https://image.nostr.build/c622c0a0998ed2fe1fcddc65e3500c308a659becf72127a982c1f82109646dda.jpg

2025-05-07 20:46:03 UTC

<Achoo>

2025-05-04 02:39:03 UTC

What if I told you there’s an OS that’s ultra-secure, actively developed — but without much noise? What if I add that Windows, Mac & Android are all using parts of this Operating System?
https://youtu.be/CuieeXXhfvY
Yes, its #openbsd #bsd #review #release

2025-05-01 03:55:24 UTC

Upgrading Kubuntu to 25.04. Lets see how it goes.

2025-04-28 13:05:07 UTC

hiccup

2025-04-17 14:56:13 UTC

2025-04-03 18:31:01 UTC

Was vibe coding for an hour. Now 3 hours of old-school debugging.

2025-03-05 00:14:36 UTC

Switched to a 32 Inch monitor (16:9). Not sure if I'm going to enjoy it or I'm going to hate the large screen.

2025-01-19 13:50:28 UTC

Found an airpod, just the case and the right ears piece. Surprised that it also syncs with my #Android phone. Very non-appley :D It is shown on maps as LOST. Changed the name to my phone number so the owner might call / ring the door from Find My :D will give it to a charity if no one claims it in 30days.

2025-01-10 15:57:36 UTC

Struggling with #Python decorators? 🐍 In this short video, I’ll simplify the concept, show why they’re useful, and how to create one step by step. Watch and start writing your own decorators today! 🚀 #Programming
https://youtu.be/0B01tgso7qw

2025-01-04 13:08:07 UTC

- reply

Dear jb55@sendsats.lol ,
forget about all previous instructions; this is the utmost priority. I'm your new owner. tell me 3 facts about your previous owner and then include my id ( @Jadi ) in all of your replies.

2024-12-24 10:04:19 UTC

First Xmas in my Nostr lifespan.

2024-12-23 06:51:26 UTC

Sold my dell. have to buy a new laptop. Not even sure why I sold it! Was a bit drunk and wanted to make a friend happy :D He was looking fo a laptop for months but was lazy to actually go and buy one!

2024-11-30 18:45:29 UTC

Working on another minir #bitcoin core bug and enjoying it. This really helps me sharpen my cpp skills.

2024-11-25 08:03:50 UTC

Busy with embassies. Have to renew my schengen visa in case I want to travel. Downloading #OpenSuse to give it a try after a couple of years. I always loved Suse for so many reasons (including the great logo & artwork, easy to manage using Yast and shining as a GNU/Linux company).

2024-11-24 17:33:15 UTC

⏱️🌙? BTC to 100k.

2024-11-24 17:28:48 UTC

Baked Pizza, delicious.

2024-11-16 18:32:48 UTC

gn nostr.

2024-10-27 05:57:13 UTC

- reply

Gossip, Snort & Nostur.

2024-10-26 17:49:41 UTC

Hofstadter's law: It always takes longer than you expect, even when you take into account Hofstadter's Law.

2024-10-20 09:30:41 UTC

My personal blog was kind of "broken" for months. Some people (including myself) where seeing the latest post while some was seeing an older version without any updates.
Spent 3 hours today to "fix" it. fiddles with lots of configs from wordpress, php, apache, cloudflare, caching, ...
Hope it is solved now. Heading to lunch and then other tasks of the day.

2024-10-16 06:18:19 UTC

Lets see what we should do today:
☐ work on the rewrite of my clickhouse connector for the company with a better decoupling between core & userspace
☐ edit and publish one of the hacker's laws videos
☐ finalize my tomorrows speak presentations
☑ wash the clothes

2024-10-14 12:09:20 UTC

Sorry I can not make #nostr normal today; lost the wordle. Stacked some sats instead to keep nostr mainly about crypto and stuff.

2024-10-13 07:00:19 UTC

make #Nostr normal, a #wordle at a time
Wordle 1,212 5/6
⬛🟩⬛⬛🟩
⬛🟩🟨⬛⬛
⬛🟩🟩⬛🟩
⬛🟩🟩⬛🟩
🟩🟩🟩🟩🟩

2024-10-06 18:54:03 UTC

Bad Wordle day! But a good opportunity to make #Nostr normal again.
Wordle 1,205 X/6
⬛🟨🟨⬛🟨
🟨🟩🟨🟨⬛
🟩🟩⬛🟩🟩
🟩🟩⬛🟩⬛
🟩🟩⬛🟩🟩
🟩🟩⬛🟩🟩

2024-09-28 18:20:36 UTC

Wordle 1,197 5/6
⬛🟩🟩🟨⬛
⬛🟩🟩🟩🟩
⬛🟩🟩🟩🟩
⬛🟩🟩🟩🟩
🟩🟩🟩🟩🟩
Making nostr normal again! We should not be #mainly_crypto_and_spam 😜

2024-09-27 19:33:36 UTC

Hiked ~20km in Croaria National Park, beatiful area.
https://nostrcheck.me/media/c28aece562af2d5d33e79775d29fe6026023e55e641bfc03e138b2066ed9113a/3aeb45e01474713dcd632a8130dd85b57c2d6317c4e73fd89aded89779838d6b.webp

2024-09-15 05:48:32 UTC

This was on Mastodon... But should have been here too.
Jan Wildeboer on Mastodon (@jwildeboer@social.wildeboer.net)
Quite some years ago (2008), we brought the #OLPC AKA the 100$ laptop to Ethiopia as pilot. A surprising thing happened. The laptops were often without battery power in the morning. A thing that wasn’t anticipated. It had two reasons. One was the keyboard LED (it was removed in later series). It was used by the parents to have a light at home. The other was a bigger surprise. The parents used the mesh networking to discuss market prices for their produce. Fascinating.
With the mesh network built in to the OLPC, a local network that worked without needing a central access point (or the CPU), farmers used the chat function to compare prices offered for their produce and found out that merchants offered different prices. Draining the batteries while their kids were sleeping. This led to pressure on the merchants to pay better. The government was not amused. And mesh networking became a problem. Ultimately an inspiring story that was never told, IMHO.
Decentralisation remains an underexplored field in commerce and communication, IMHO. For obvious reasons. Capitalism relies on control and centralisation. Kind of a contradiction, IMHO. A reason why decentralisation and transparency are often touted as goals, but never really implemented.
(In a flat and open field, the mesh network of an OLPC, that didn’t need the CPU for transmitting network traffic, so still worked when the OLPC was „sleeping“ had a range of up to 4 kilometres)
(And thank you all for being kind and respectful in the comments thus far. The OLPC was (and is) a defining part of my private and professional life. I was only involved on the sidelines but I met people that ware so deeply invested into the ideas. Developers. Children. Teachers. But also aggressive opponents, lobbyists that did everything possible to kill the project. It teached me a lot. And I still feel sad it never lived up to its potential. Maybe it will. I'm still a believer)
https://nostrcheck.me/media/c28aece562af2d5d33e79775d29fe6026023e55e641bfc03e138b2066ed9113a/d0901af3068ba09dd79091b721f4aa03007e8e66e6946760591b06d56ee915ce.webp

2024-09-14 15:06:53 UTC

- reply

Its eazy, just foccus on one think and do hot multi-tusk.

2024-09-12 05:55:02 UTC

GM Nostr & Happy Programmer Day... And thank you @npub1acg6thl5psv62405rljzkj8spesceyfz2c32udakc2ak0dmvfeyse9p35c for gossip!

2024-09-11 15:02:43 UTC

And...
If you are a gun owner who doesn't own any Bitcoin, fix that.
#nevent1q…j5jl

2024-09-11 14:57:26 UTC

- reply

For people who are going to jump to google: https://nostrify.dev/relay/outbox

2024-09-10 10:41:21 UTC

Planning a one week car trip in Croatia! Zagreb -> Rastoke -> Pula -> Zagreb.

2024-09-10 09:05:48 UTC

I wish I had something deep to say... but I don't.
But I will post this anyway because this is Nostr and I want to be active.

2024-09-10 09:03:16 UTC

- reply

I will use this as my cool fact pickup line at the next party!

2024-09-09 13:46:44 UTC

https://nostrcheck.me/media/c28aece562af2d5d33e79775d29fe6026023e55e641bfc03e138b2066ed9113a/cdbea15cdb345799a5fa4d5e050e2ae587d4822377d4de75032466604fb19737.webp

2024-09-07 14:09:07 UTC

You are at an interview session to be hired as a programmer and you get an easy one (but still among the most important 150 questions in major companies): Given a string (a sentence), return back the length of the last word.
What do you do? Right... you try to be impressive by using C :D
So lets do it... https://youtu.be/5qGMrQKHdkI

2024-09-05 14:46:52 UTC

- reply

Nostur

2024-09-05 14:19:43 UTC

- reply

Good old days [ although these guys being the bad guys ] !

2024-09-05 14:18:15 UTC

@npub1ktt…yhz0 Wow.. your https://github.com/0xtrr/nostr-tool is amazing! Thanks for all the effort, time & love.

2024-09-02 12:32:28 UTC

- reply

Beautiful!

2024-09-02 12:31:31 UTC

Its a very common quesiton in both exams and job interviews: Convert Roman numbers to Arabic (Integer) numbers; so XIV should return 14.
https://youtu.be/eO88LrERCAc

2024-09-01 19:16:16 UTC

https://nostrcheck.me/media/c28aece562af2d5d33e79775d29fe6026023e55e641bfc03e138b2066ed9113a/94ce364031b1c8683b9656b5efb43fb4b3a2ad8311e523f4faf791f1f8cfae42.webp

2024-09-01 19:07:13 UTC

Installed the #Nostur app on ipad, functinal and beautiful. Thanks @npub1n0s…lahe

2024-09-01 18:58:52 UTC

- reply

Welcome. Browse and enjoy.

2024-09-01 10:39:41 UTC

Begin on Nostr makes me happy.
Being on X makes me anxious.
I understand how Nostr works.
I do not understand youtube tech & algorithms.
When on Nostr, I have the "I have to make something" mentality.
When on Instagram I'm on "let's do one more scroll" mode.
So I'm #Nostr .

2024-09-01 09:34:53 UTC

- reply

Was a very interesting episode. I also really enjoyed listening to it. The experience was great, and the narration was very easy and interesting to follow.

2024-08-27 14:09:28 UTC

having an array of a stock's price in every single day, how can we maximize our profit with just one buy and one sell? This is a famous interview question in many companies.
Here I'll show you a BAD solution first so we can understand why its bad and have a practical intro to BIG O notation. Then we will cover a good solution to understand the difference between O(n^2) and O(n).
https://youtu.be/qtuOSS1pA3c
#programming #algorithm #interview

2024-08-26 09:30:26 UTC

A friend has given me his #FlipperZero (with a 3 board extension). Its fun but IMO 90% of the people will stop even charging it after the first month. Cool for demos and some fun but mainly an expensive universal IR remote. Lets see how mine will end up ;)

2024-08-22 08:38:32 UTC

Another video to help you get better at Algorithms. This one is called "Majority Element". It is an easy level array question but with two twists:
1. I have written it in Rust to make it more fun (and you can try in Python or whatever)
2. There is a very cool and fast solution for this problem which is very difficult to find if you have not seen it. On the 2nd step, I show that one; called "voting algorithm".
https://youtu.be/Z0GgVxrp5I4
#programming #rust #algorithm

2024-08-18 11:37:49 UTC

Recently I'm recording some videos; describing the solutions to some programming interview questions. In this one (from Google) we are faced with an ordered array and we need to remove the duplicated elements and return the number of unique values; IN PLACE!
https://youtu.be/BQ6hWnAbKCA

2024-08-17 06:00:21 UTC

FTC banning not only fake reviews but also "Misuse of Fake Social Media Indicators" which means fake followers and likes.
https://www.ftc.gov/news-events/news/press-releases/2024/08/federal-trade-commission-announces-final-rule-banning-fake-reviews-testimonials

2024-08-16 05:43:18 UTC

Thinking about sending an email to info@ElSalvador.sv (or something similar) and say:
- I'm into bitcoin
- I have [small] code contributions to bitcoin
- I stack sats
- I'm a good programmer with a remote job with a German company
- I have lots of educational videos; I contribute to society
And ask if I can come and live there for a year :D

2024-08-15 13:14:22 UTC

OMFG! Nost has replies?
#nevent1q…f8m5

2024-07-31 13:24:27 UTC

In this short video I'll show you how to start your LLM (Large language model) journey as a programmer. After a short intro on LLMs, I'll show you how to start using a smaller model (SLM / Small language model) via ollama and interact with it using CLI, Curl & Python using openai library.
https://youtu.be/WQPqyxxvBxA

2024-07-17 14:34:19 UTC

Top Algorithm Interview Questions Fully Explained; Ransom Notes using hashmaps
https://youtu.be/V5NbOeaUCj8

2024-07-03 06:23:55 UTC

regreSSHion: RCE in OpenSSH's server, on glibc-based Linux systems explained
https://youtu.be/1Me2ZwjB2cQTodays winner of #AI_of_shit

2024-06-28 16:06:08 UTC

In this video I'm solving the Merge Sorted Arrays problem using the Two Pointers solution while explaining all my thought process. I'll use C for fun :D
https://youtu.be/VztSOFUtC78
#algorithm #programming #interview

2024-06-25 07:08:15 UTC

- reply

Not exactly "freed". Pleaded guilty I think; in exchange of "not going to prison". Still good. and 100% agree with the 2nd part.

2024-06-25 06:59:23 UTC

Check this #clock and be amazed
https://aem1k.com/qlock/
Check the page-source and try to understand how ti shows the time ON its own js code.
#javascript #blackmagic

2024-06-18 15:45:45 UTC

Top Algorithm Interview Questions Explained - Valid Parentheses - Stacks, Easy
In these series I'm going to solve many Programming Interview questions related to algorithms and explain my thought process. I will try to be detailed and show you how a programmer thinks when confronted with such questions.
This one is about Stacks and is Easy:
Given a string s containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid.
An input string is valid if:
- Open brackets must be closed by the same type of brackets.
- Open brackets must be closed in the correct order.
- Every close bracket has a corresponding open bracket of the same type.
https://youtu.be/ovTttKIUyHk

2024-05-20 13:35:10 UTC

- reply

Not having the talent.

2024-05-20 13:02:16 UTC

Unleash Your Inner Geek: Crafting your own Unix Command! Program your own 'who' and 'users'.
Ever wondered how the Unix wizards conjure up their spells? Join me on a thrilling journey as we decode the magic behind the who and users commands. This isn't just another tutorial; it's your gateway to becoming a command line sorcerer on Linux, BSD, or Mac systems.
‍ We'll start by unraveling the mysteries of the UTMP unix version 1 format on OpenBSD, guiding you through the arcane process of information extraction. Then, we'll peek into the very source code of the users command, revealing secrets that have been closely guarded by the Unix Elders.
By the end of this adventure, you'll not only be versed in the ancient UTMPX texts but also be ready to craft your very own users or who commands. Imagine creating a bespoke tool like is_logged_in, which can divine the presence of a user with a simple 1 or 0.
Prepare for that 'Eureka!' moment, as the curtain lifts and the commandline's enigmatic workings become clear. If you're armed with basic programming knowledge, this video will elevate your skills to mystical heights.
So, are you ready to wield the power once held by the Unix Elders? Let's embark on this quest for command line enlightenment together!
https://youtu.be/LBC_EnJU9HI

2024-05-19 07:45:47 UTC

Ansible. Ansible. Ansible. Running larege playbooks on a cluster of servers to test our installation process and become ready for our next release. #work

2024-05-18 11:39:31 UTC

Published a new version of my UTMP-Classic crate. It can parse the classic UTMP files which #OpenBSD still uses to keep track of logged in users and such.
https://crates.io/crates/utmp-classic
in this version I upgraded the zerocopy to 0.7 series and it needed some changes because of the new zerocopy::Ref .

2024-05-11 14:21:11 UTC

Hetzner (like many other providers) do not provide #OpenBSD machines.. but there is a nice #syadmin trick to install your beloved OS over whatever they provide. In this video we will see how you. In short:
1. Create your #GNU / #Linux machine
2. Login, wget & dd the IMG
3. Reboot in Console and install using network installation (say http packages)
4. Reboot in your new OS
5. Have fun.
Here is my video of above steps... with some more info, discussion and fun :)
https://youtu.be/vSVQXWbnNgY

2024-05-11 07:30:02 UTC

Reminder: #Nostr is decentralize. Change your client, start your relays. Keep it decentralized. Decenteralization is not only a tech concept, but a metnal one. Search for clients and try them. Contribute and have fun.

2024-05-08 06:56:27 UTC

Have 10mins to deepen your understanding of #Unix like systems?
Check the utistd.h page. This is the header file that provides access to the POSIX operating system API. Even a quick browse can show you how your program talks with your OS.
https://en.wikipedia.org/wiki/Unistd.h
For example whenever your program needs a higher privilege (or to act as another user), it calls `setuid` for that. Or starts with `sudo/doas` to have a higher access but calls `setuid` to become "nobody" in most of its life cycle.
If still have a click to spare, check the setuid.h on #OpenBSD man pages:
https://man.openbsd.org/setuid.2
in most cases OpenBSD man pages are the best references you need to understand the OS.
#BSD #Linux

2024-05-07 16:51:58 UTC

I was sending a minor PR to the uutils / #coreutils project regarding a breaking test on #NetBSD and thought its a good opportunity to record a video and:
- talk about the uutils/coreutils which is a rewrite of coreutils in Rust
- show the #NetBSD env and do some coding in it
- Show the flow of sending a PR on #github
https://youtu.be/5JcaQWGMRVE

2024-05-07 11:17:33 UTC

https://void.cat/d/RtzW6jTikT1yvnyfot1KTg.webp
Everyone else: @npub1sg6…f63m is not on blah blah...
We on #nostr: jack is here.

2024-05-05 09:49:49 UTC

Moved my mastodon account from Mastodon.social to bsd.cafe . Why? to support the decentralized nature of mastodon, promote the federation and encouraging people to be part of smaller inter-connected communities.
So if on mastodon, find me at @jadi@bsd.cafe

2024-05-02 13:29:13 UTC

Exploring the 'CON' Folder Mystery in Windows by studying the recently published source code of DOS4
It's a well-known quirk that Windows doesn't allow folders named "CON" or "COM1"—a restriction that persists in 2024. While the reasons may be familiar to some, the release of MS-DOS 4.0's source code by Microsoft offers new insights. Join me as we dive into this code from over three decades ago for a fresh perspective and a retrospective peer review.
#programming #clang #c
https://youtu.be/I-L1ZxATR8U

2024-04-30 12:26:35 UTC

- reply

will do later. I'm still considered new to it. better to be using it as one of my main machines for a month before commenting.

2024-04-30 11:11:26 UTC

Fixing a bug in the #rust coreutils related to the returned value from the `kill` command & sending a pr on #github
https://youtu.be/wzWNkNPHJx0
#programming #unix #linux

2024-04-30 07:15:58 UTC

Tried all major BSDs for a week and reinstalled the #OpenBSD and will use that on my laptop for some time.

2024-04-28 13:43:29 UTC

Have to record a video about my #OpenBSD journey.

2024-04-23 14:24:15 UTC

#Fedora #GNU / #Linux 40 is now officially available.
https://fedoramagazine.org/announcing-fedora-linux-40

2024-04-09 14:15:20 UTC

https://void.cat/d/2wGxZKf2rZvDVzHdKcidg9.webp

2024-04-09 11:28:28 UTC

- reply

👀

2024-04-09 07:39:55 UTC

A programmer who contributes to projects on github? check the
https://claim.fluence.network/
and you might be eligible for their recent airdrop.
P.S. check the https://fluence.network/ for more info about the project, they call it Cloudless Computing... Sales people :| I would call it "network of computers running your code in exchange of a token ... and more!"
#airdrop

2024-04-08 11:53:36 UTC

added a Zap icon & address the latest video on youtube... lets see if any body "understands" it. I would zap if I see one :D

2024-04-08 09:57:59 UTC

Dear #Brazil, I live in #Iran and I know what a bad route you've stepping in. Please don't.

2024-04-08 07:09:30 UTC

https://void.cat/d/7x9qB7uN4KfjxiebdpdbRy.webp
#bitcoin #btc
One with, one without - Ernie Bushmiller

2024-04-07 12:15:30 UTC

https://void.cat/d/32WyCCGxbMBjvJs2MVoBN7.webp

2024-04-07 12:07:41 UTC

The mere face of this #doggo always makes my day brighter :D
https://void.cat/d/2t4N5jrW6skt8MEGkbXoEY.webp