JotaleaOS: a very tiny hobby operating system
JotaleaOS is an open source, minimalistic, experimental operating system made by Jotalea, designed for extreme low-resource environments. It does not support external programs or games, as it lacks a standard application execution environment. The system is entirely self-contained, running only its built-in commands. ↫ JotaleaOS website Exactly what is says on the tin: a tiny operating system created entirely as a learning experience. That’s … ⌘ Read more

that’s a fair point.

Perhaps, since Twitter in 2006 never implemented read flags, every derivative microblogging system never saw that as an expected feature. This is curious because Twitter started with SMS, where on our phones we can mark messages as read or unread.
I think it all comes from the difference between reading an email (directed to you) vs. reading public posts (like a blog or a ‘wall,’ where you don’t mark posts as read). It’s not necessary to mark it as ‘read’, you just jump over it.

Reading microblogging posts in an email program is not common, I think, and I haven’t really used it, so I cannot say how it works, and whether it would be better for me or not.
However, I’ve used Thunderbird as a feed reader, and I understand the advantages when reading blog posts.

About read flags being simple, well… we just had a discussion this morning about how tracking read messages would require a lot of rethinking for clients such as timeline where no state is stored. Even considering some kind of ‘notification of unread messages or mentions’ is not expected for those minimalist client, so it’s an interesting compromise to think about.

@eapl.me@eapl.me Read flags are so simple, yet powerful in my opinion. I really don’t understand why this is not a thing in most twtxt clients. It’s completely natural in e-mail programs and feed readers, but it hasn’t made the jump over to this domain.

Well, that’s another bug: The search https://twtxt.net/search?q=%22LOOOOL%2C+great+programming+tutorial+music%22 yields the wrong hash. It should have been poyndha instead.

cli/q: 🌱 A simple programming language. - q - Projects I really like this little q lang that Ed has created ❤️ Really nice and simpler, great design and implementation and really lovely cross-platform compiler supporting DOS, Windows, Darwin and Linux on AMD64 and ARM64 💪

Android 16’s Linux Terminal will soon let you run graphical apps, so of course we ran Doom
Regardless, the fact that Android’s Linux Terminal can run graphical apps like Doom now is good news. Hopefully we’ll be able to run more complex desktop-class Linux programs in the future. I tried running GIMP, for example, but it didn’t work. Eventually, Android should be able to run Linux apps as well as Chromebooks can, as I believe one of the goals … ⌘ Read more

Google begins requiring JavaScript for Google Search
Google says it has begun requiring users to turn on JavaScript, the widely used programming language to make web pages interactive, in order to use Google Search. In an email to TechCrunch, a company spokesperson claimed that the change is intended to “better protect” Google Search against malicious activity, such as bots and spam, and to improve the overall Google Search experience for users. The spokesperson noted that, with … ⌘ Read more

Google Begins Requiring JavaScript For Google Search
Google says it has begun requiring users to turn on JavaScript, the widely-used programming language to make web pages interactive, in order to use Google Search. From a report: In an email to TechCrunch, a company spokesperson claimed that the change is intended to “better protect” Google Search against malicious activity, such as bots and spam, and to improve the over … ⌘ Read more

Alright, I have a little 8086 assembler for my toy OS going now – or rather a proof-of-concept thereof. It only supports a tiny fraction of the instruction set. It was an interesting learning experience, but I don’t think trying to “complete” this program is worth my time.

The whole thing is just a learning project, I don’t want to actually make a usable OS. There are a few more things I want to have a look at and then I’ll eventually move on to 386/amd64 later this year (hopefully).

https://movq.de/v/d8f30cbe75/vid3.mp4

@kat@yarn.girlonthemoon.xyz To improve you shell programming skills, I highly recommend to check out shellcheck: https://github.com/koalaman/shellcheck It points out common errors and gives some suggestions on how to improve the code. Some details in shell scripting are very tricky to get right at first. Even after decades of shell programming, I run into “corner cases” every now and then.

E.g. in getlyr’s line 7 it warns:

echo -e $(gum style --italic --foreground "#f4b8e4" "'$artist', '$song'")
        ^-- SC2046: Quote this to prevent word splitting.

For more information:
  https://www.shellcheck.net/wiki/SC2046 -- Quote this to prevent word splitt...

Most likely not all that problematic in this application, but it’s good to know about this underlying concept. Word splitting is basically splitting tokens on whitespace, this can lead to interesting consequences as illustrated by this little code:

$ echo $(echo "Hello   World")
Hello World

$ echo "$(echo "Hello   World")" 
Hello   World

In the first case the shells sees two whitespace-separated tokens or arguments for the echo command. This basically becomes echo Hello World. So, echo joins them by a single space. In the second one it sees one argument for the echo command, so echo simply echos this single argument that contains three spaces.

Chess Zoo
⌘ Read more

The editor can launch a new shell now:

https://movq.de/v/6ec68b50dd/los86-edit-shell.mp4

Trivial to implement but super useful. It allows for simple but meaningful dev cycles: Edit source code, run/test it, back to editor. That’s what I do in the video.

(The Brainfuck program is silly, but I got nothing else at the moment.)

The I/O cache is also getting better. All that back and forth doesn’t hit the disk at all, once cached.

This whole thing is much more fun and interesting when you run it from a real floppy disk. It’s a 5.25” floppy in the video (so it’s actually floppy 😅). Disk seek times can be catastrophic and you don’t notice any of this on modern disks.

@movq@www.uninformativ.de Woohoo, noice! Now you can ship, even sell it! :-D

All kidding aside, even though I never wrote a proper brainfuck program myself, I do like that. :-) Keep it going.

My OS has a Brainfuck interpreter now and this counts as a programming language, right? We’re feature complete now. 😂

https://movq.de/v/1335167b35/vid4.mp4

rose put crack in apt because jesus christ i just find myself mindlessly chanting “apateu apateu” under my breath at the most random times. some brain programming shit

@movq@www.uninformativ.de woah it’s like a cheatsheet with explanations! java is kind of arcane magic sorcery to me so i’m having trouble understanding it but i have that with most programming languages. this is like so much easier to actually look at and read instead of my eyes glazing over lol

@movq@www.uninformativ.de That’s so damn cool mate! I went through the code, but this lowlevel stuff is really not my favorite cup of tea. Having said that, it was actually really nice to see the abstractions and APIs work together and how things are getting indeed very readable in the userland programs. That’s easy to track in this extremely tiny OS implementation. Excellent work, keep on hacking!

Now, you just have to quickly add a network stack and then can write a twtxt client for it! ]:->

@prologic@twtxt.net oh it’s ok! thank you for the explanation! i think for me when it comes to programming i learn best by doing, so like written examples or talking about it helps less, BUT baseline explanations like what a pointer is does help! i was so confused and i still need to fix the error i’m having but i will figure it out!

@movq@www.uninformativ.de Wow, quite an elaborate editor you’ve programmed there!

Okay, this is pretty cool. My 8086 toy OS running on my old Pentium from an actual floppy disk. 😍 I just love that sound and the feeling of using floppies. This brings back so many memories from my early DOS days.

The cp-unopt program copies a file and intentionally uses small unaligned reads/writes (hopefully triggers more bugs).

The I/O cache works “okay-ish”, I guess. When sha1 runs, it has to do a few reads for the first file and basically none for the second one. Both could have been served entirely from the cache, theoretically. (But even just having an I/O cache in the first place speeds up things dramatically.)

Notice how there’s an EA file. That’s a left-over from OS/2, because I copied some files to the floppy using OS/2. In other words, my FAT12 implementation survives OS/2 writing to it. 🥳 (But I guess it should show up as EA DATA.SF. My current code starts at the left and stops at the first space.)

https://movq.de/v/d4d50d3c74/los86-on-p133-from-floppy-small2.mp4

Thanks @bender@twtxt.net for the feedback. I fixed and expanded the article. I’m sorry for my poor interaction. Furthermore, I’m reading and writing while programming a client in Emacs.

Sunset:

Image

No, of course not. This is the gingerbread in the oven with my digicam’s sunset program. The second photo shows the colors more like they are in reality. It surprises me every year how absolutely sticky this dough is. Holy cow! Close to impossible to spread it evenly in the baking tray. https://lyse.isobeef.org/tmp/lebkuchen-2024-12-20/

@eapl.me@eapl.me @bender@twtxt.net @skinshafi@thunix.net The feed that nobody follows out of fear.

When I started programming in Delphi, I always included all the files (not only the *.exe, but also *.pas and what else there was) when giving friends my programs on floppy disks. I didn’t know that the executable was technically enough. :-)

@aelaraji@aelaraji.com This is an Intel i7-3770 from 2013 with an integrated GPU (HD 4000).

Looks like FreeCAD works fine and I think this is a more appropriate program anyway. 😊

If I use Fedora on my PC, Vivaldi as my browser, Signal as my main messenger program, then which OS should my phone run on?

LOOOOL, great programming tutorial music: https://www.youtube.com/watch?v=yup8gIXxWDU

a new emmanation of my trusty old vim config, now available as a home-manager nix module. now i can track my dependencies with nix instead of using git subtree and it makes installing backend programs like language servers and such way easier. https://src.ix.cyb.red/pe-vim/

Its time to brush up on your competitive programming skills!

https://cses.fi/book/book.pdf

Image

stick computers, to snugly fit in reclaimed plastic tubes/containers #halfbaked #coding #programming #embedded #electronics

today I wrote a CV sequencer in VoodooAssembly for work O__O #coding #programming #embedded

#fzf is the new emacs: a tool with a simple purpose that has evolved to include an #email client. https://sr.ht/~rakoo/omail/

I’m being a little silly, of course. fzf doesn’t actually check your email, but it appears to be basically the whole user interface for that mail program, with #mblaze wrangling the emails.

I’ve been thinking about how I handle my email, and am tempted to make something similar. (When I originally saw this linked the author was presenting it as an example tweaked to their own needs, encouraging people to make their own.)

This approach could surely also be combined with #jenny, taking the place of (neo)mutt. For example mblaze’s mthread tool presents a threaded discussion with indentation.

@prologic@twtxt.net Brute force. I just hashed a bunch of versions of both tweets until I found a collision.

I mostly just wanted an excuse to write the program. I don’t know how I feel about actually using super-long hashes; could make the twts annoying to read if you prefer to view them untransformed.

when I say ‘functional programming’ you think ‘haskell’ and I think ‘BQN’

Image

OK I found this one, small enough, but where does it install to? can’t find the app, of any files of anything.
Being a total novice to Linux stuff….where is this file located and why don’t they prompt you for a folder location of the program? And why such a stupid name? Dozens to choose from and most over 300MB, not what I want - I just want Apache to run the index.html webpage or the index.php webpage. I do not need Javascript or Java programming editors….

If some of you budding fathers want to know how I created a computer nerd to one day work for Facebook in the big USA, well you purchase a $1000 Xmas present, an enormous thick book with C++ programming, and say, you can play as many games as you like kids, but James has to create them using computer software.

SO James created once a 3D chess program with sound, took 6 months or so, really hard to beat, not based on logic moves point by point like other chess programs, this one was based on the depth of looking for patterns, set it to 5 moves ahead and you were toast every time. Nice program too, sadly gone over the years, computers suffer from bit rot. We used to try and mark rotten hard drive discs once as bad sectors, not sure how UBuntu does this these days, I see a dozen errors on the screen every time I load.

Today I would purchase for my kids AI CAD simulation software with metal 3D printer and get your child to build fancy 3D models and engines from scratch. This will make them an expert in the CAD AI industry by the time they are 14 years old. Sadly AI is here to stay and will spoil the Internet.

@bender@twtxt.net Is it so maxed out you couldn’t fit a pretty small program like Headscale on it? Headscale by itself and only personal home type use as far as amount of peers go, it really isn’t noticeable I don’t think resource-wise. The Docker version I guess could be a different story.

@movq@www.uninformativ.de Somewhere or another, I think in a William Byrd talk, I heard it suggested that the best ideas in computer science should fit on an index card (ah yes it’s this one: https://paperswelove.org/2017/video/will-byrd-most-beautiful-program/ ). He was referring to the basic principles of LISP/the lambda calculus, which have sometimes been called the Maxwell’s equations of computer programming (by Alan Kay). Simple, short, elegant, but very densely packed with meaning–generations of people have spent their whole careers unpacking what those simple rules can do.

Much of modern software feels like the polar opposite of that. Not only can you not write it on an index card, you never will be able to because people who write software don’t seem to aspire to try. I wish more people thought this way though!

Imperative programming is comfy

Best way to write programs: turn off the computer.

@johanbove@johanbove.info Is there any reason to use this program? I can’t remember when I last had it installed, must have been early 2000’s.

Notes et astuces intéressantes pour #awk: https://eradman.com/posts/awk-programming.html

@movq@www.uninformativ.de Haha! yeah sounds about like my HS CS program. A math teacher taught visual basic and pascal. and over on the other end of the school we had “electronics” which was a room next to the auto body class where they had a bunch of random computer parts scavenged from the district decommissioned surplus storage.

The advanced class would piece together training kits for the basic class to put together.

@prologic@twtxt.net High five, I’m “generation Java” as well! 😂 There were some leftovers of C++, we used that in the computer graphics courses in Uni a lot. But pretty much anything else that involved programming was Java.

(There was nothing even remotely resembling CS in our “high school”. That school neither had the required teachers nor the equipment / PCs.)

I finally found the NASM assembler.

https://nasm.us/index.php

I had heard that name before, many times, but somehow never looked into it. Weird. 🤨🤔

This is the kind of program I was looking for.

1. It is free software. Especially in the DOS ecosystem, free/libre software is a very scarce resource.
   
2. It’s a small command line program, not a huge behemoth.
   
3. Documentation appears to be well written.
   
4. It can even cross-compile DOS binaries from Linux.

I’m really bad at competitive programming. 🙄 For today’s #AdventOfCode puzzle, I spent an eternity trying to understand exactly what kind of bG9naWMgY2lyY3VpdAo= the puzzle input describes – I haven’t done that in well over a decade, so I made little progress. I knew right from the start that SSBoYWQgdG8gbG9vayBmb3IgY3ljbGUgbGVuZ3RocyBhbmQgdGhlbiBmaW5kIHRoZSBMQ00K. It just didn’t occur to me to just run my program on cGFydGlhbCBpbnB1dAo= and print those numbers. 🥴 I only did that after over 4 hours (including time to debug my nasty C code) and then, boom, solution …

A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects. -Robert A. Heinlein

So today’s #adventofcode was solved with no programming. Just a bit o maths and wolfram/alpha

How did I just find this program? Reptyr: Reparent a running program to a new terminal: https://github.com/nelhage/reptyr

Inspiration
⌘ Read more

Erlang Solutions: Blockchain in Sustainable Programming
The benefits of blockchain implementation across multiple sectors are well-documented, but how can this decentralised solution be used to achieve more sustainable programming?

As the effects of the ongoing climate crisis continue to impact weather patterns and living conditions across the planet, we must continue to make every aspect of our lives, from transport and energy usage to all of our technology, greener and more sustain … ⌘ Read more