spellcard199 (u/spellcard199)

spellcard199 commented on FOSS funding vanishes from EU's 2025 Horizon program plans theregister.com/2024/07/1... · Posted by u/openrisk

j-pb · a year ago

Does anyone know any good FOSS projects that were actually funded by this?

I feel like the people deciding what (research and technology) to fund in the EU generally have very poor taste in their selections. I assume that they are non-technical as they often seem to choose the projects that make the most ambitious claims about social impact and EU values, but have very little to none technical merit.

Stuff like Rust, that could be a real technological advantage for the EU, is not funded, but weird blockchain semantic web foo is https://www.ngi.eu/

spellcard199 · a year ago

I periodically watch the status of Lanzaboote [1] to know when it will be upstreamed to Nixpkgs so that it will be easier for people (e.g. me) to switch to NixOS. It has been funded by the Next Generation Internet initiative that the article says is being eliminated.

[1] https://github.com/nix-community/lanzaboote

spellcard199 commented on What process created this X11 window? unix.stackexchange.com/qu... · Posted by u/signa11

yjftsjthsd-h · 2 years ago

...wait, does Wayland not have a drop in replacement for xkill?

spellcard199 · 2 years ago

Some weeks ago I searched for a more general solution that doesn't depend on the compositor and doesn't need root (i.e. an xkill replacement), but I didn't find one.

As a frequent user of xkill I was surprised by that too, but I remember reading somewhere that making a terminal application kill another application's window is not allowed by design. Reusing a sibling commenter's analogy, it's kind of like some javascript functions in the browser can only be triggered by user actions for security reasons.

The compositor, however, is allowed to kill the windows it's showing. So if you want to kill a window, you can ask the compositor to do it for you. Gnome, KDE [0], sway [1], etc.. each expose this functionality in a way that differ between each other.

[0] https://www.reddit.com/r/kde/comments/1242w2e/wkillsh_an_xki...

[1] https://www.reddit.com/r/linuxquestions/comments/ufw7tj/is_t...

spellcard199 commented on What process created this X11 window? unix.stackexchange.com/qu... · Posted by u/signa11

calvinmorrison · 2 years ago

Why is x11 so backwards?

On Wayland, each window is a composer, each component that makes up a screen is a compositor. Don't mid them up. Simply put each window manages their own process tree as its much cleaner. Its very simple. What you need to do is simply install dbus-systemd and issue SummonPoettering which will give you a clean docker workspace. Simply put this is far superior to X11. In short on Wayland, you only need to push one button to kill an errant window - the power button

spellcard199 · 2 years ago

Under Wayland with Gnome (it's gnome-specific), I recently learned you can kill windows by using Looking Glass:

  // 1. Open looking glass: Alt+F2 > lg
  // 2. Use picker to pick window (button on the top left corner).
  // 3. Now an object r(0) of type MetaSurfaceActor is available in the
  //    gjs console (or some other number if you've already used it).

  // To get pid:

  r(0).get_parent().get_parent().get_meta_window().get_pid()

  // To kill window and process:
  
  r(0).get_parent().get_parent().get_meta_window().kill()

Reference for what those .get_parent() refer to: https://gitlab.gnome.org/GNOME/mutter/-/tree/fc1de744/src/co...

spellcard199 commented on What happened when my wife died newyorker.com/culture/per... · Posted by u/drdee

igetspam · 3 years ago

I don't know how this is relevant to HN but it feels well timed, for me.

My wife is alive. She doesn't a terminal diagnosis. But for the last five years, she's had no diagnosis. Visually, she's stunning and fit. According to every test they run on her, there appears to be nothing wrong. There's no explanation for the temporary blindness, the rapid onset arthritis, the partial spinal fusion, the diverticulitis, the random bleeding, the persistent fluid buildup and inflammation or the new magical DVT they found when looking for something else. It could be autoimmune, it could not be, I could be anything at this point. And there's no one who either wants to or is qualified to look.

I lost it after the title and lost it more through the first section. I couldn't even tell my wife what I was reading, when she came into the room. This story is the tale of all my fears. But where's he's poor, I'm not and where he has community, however temporary and dwindling, I don't.

I cannot imagine having to explain to our daughter that mommy is gone but I'm constantly thinking about the possibility of it. I've been worrying about this eventually for a couple years now and I don't know where people find the strength but somehow they do.

I feel for the author. I dread his reality every day.

spellcard199 · 3 years ago

Hello. I'm just a (bad) med student and I'm not qualified to make any diagnosis, but I think the clinical picture you have reported warrants further investigations and I wanted to share my thoughts while I was reading your post.

In the demographic of woman of child-bearing age the coexistence of more than one autoimmune diseases is not uncommon. Occasionally, there are even combinations of several of them [1]. As you've written, the manifestations you have reported may or may not be caused by one or more autoimmune diseases, but the ones that tipically keep autoimmune/rheumatologic origin in consideration even when labs are negative are the partial spinal fusion and the arthritis [3][2].

> According to every test they run on her, there appears to be nothing wrong

Does it? We have:

- clinical picture strongly suggesting some rheumatologic disesease: inflammation and rapid onset arthritis are typical, but DVT, random bleeding may also be linked.

- radiographic evidence of spinal fusion.

And that's exactly how (eg) Ankylosing Spondylitis has been diagnosed classically (i.e. when MRI was not an option) [4]. More generally speaking, as the name suggests, the diagnosis of most Seronegative Spondyloarthropathies is based more on clinical than laboratory criteria [3]. For how I understand it, ideally AS would be diagnosed before spinal fusion happens, but when it's present and there isn't a more likely explanation AS would be at the top of the differential diagnosis.

Another thing that came to my mind when reading DVT, bleeding, vision loss was that these are more typically seen together in of some kind of vasculitides, hence why I mentioned above an the possibiity of multiple autoimmune diseases, but these could also be explained by anything altering Virchow's triad.

> There's no explanation for the temporary blindness, the rapid onset arthritis, the partial spinal fusion, the diverticulitis, the random bleeding,

That sounds somewhat strange. While for temporary blindness, diverticulitis and DVT the cause may already be gone by the time the patient arrives at observation, at least for rapid onset arthritis, spinal fusion and random bleeding I think a diagnosis of the cause should be made.

The reason why rheumatologic diseases should be diagnosed is that if left untreated there will be periods of remission, when nothing happens, and periods of activity, when irreversible damage accumulates. Another reason to diagnose rheumatologic diseases is that they may themselves be manifestations of some other condition (e.g. rheumatologic paraneoplastic syndromes). We don't know if your wife actually has a disease, it may be not, but that's not a risk a doctor would leave to chance. It's just standard practice.

As I've already written I'm not a doctor, but if I may give you my advice anyway I would say your wife should go and see a rheumatologist.

> There's no one who either wants to or is qualified to look.

If I were in you, at this point I would go to some known research center with maybe a university department or ward.

[1] [Coexistence of Axial Spondyloarthritis, Systemic Lupus Erythematosus, Sjögren’s Syndrome and Secondary Antiphospholipid Syndrome: Case Report](https://dergipark.org.tr/en/download/article-file/1615538)

[2] [Approaching the Patient with "Joint Pain" - CRASH! Medical Review Series ](https://www.youtube.com/watch?v=sfKWNeAywak&t=195s)

[3] [Seronegative Spondyloarthropathies - CRASH! Medical Review Series](https://youtu.be/hvQkROf5rsQ?t=377)

[4] [Progression of Spinal Fusion in Ankylosing Spondylitis](https://clinicaltrials.gov/ct2/show/NCT00085995)

spellcard199 commented on Diagrams: Open-Source Alternative to Lucidchart diagrams.net/... · Posted by u/synergy20

davidjgraph · 4 years ago

If you're ever looking for a software job let me know - david@draw.io

spellcard199 · 4 years ago

As you can see I am a fan of both your product and the philosophy behind it, so thank you for your work. If I was interested in working just on software diagrams.net would be somewhat of a dream job for me, however, currently my life plan is to finish my last years of med school (after being stuck for ~20 years) and then possibly do something related to both software and med at the same time. Thanks for the offer anyway, since it came from you I admit I have really appreciated it.

spellcard199 commented on Diagrams: Open-Source Alternative to Lucidchart diagrams.net/... · Posted by u/synergy20

CornCobs · 4 years ago

TIL about being able to hack the diagrams from console. Thank you very much! I've been using diagrams.net recently and have had some frustrations with the graphical editor that I almost wished I were using plantuml

spellcard199 · 4 years ago

I agree on the graphical editor. Before customizing it to my needs there were several behaviors that I found quite tedious.

Since it may be of interest I'll add some notes.

You can get a console also in the desktop app if you launch it from a terminal adding --remote-debugging-port=..., then opening http://127.0.0.1:<port> from a chromium-based web browser.

A couple of useful functions that allow to listen to events are graph.model.addListener and graph.selectionModel.addListener. They are documented in the mxGraph api page.

You can make your functions persistent between sessions by putting your code in a javascript file, clicking from the desktop app on Extras > Plugins > Add > Select File... Then restart the app. In the web app "Select File..." is replaced by "Custom..." and the file should be some reacheable url. The javascript file can contain arbitrary javascript code, doesn't need to have a specific format.

Finally, to customize the ui actions, keybindings and menus without touching the various event listeners, this answer on stackexchange [1] from user holroy is what initially guided me in the right direction.

[1] https://webapps.stackexchange.com/a/82379

spellcard199 commented on Diagrams: Open-Source Alternative to Lucidchart diagrams.net/... · Posted by u/synergy20

spellcard199 · 4 years ago

I 'm an heavy user of diagrams to take notes while learning topics in biology and medicine. I think the most interesting feature of diagrams.net is its extensibility, which is not frequently mentioned. If you run in the javascript console...

    var editorUi;
    Draw.loadPlugin(app => editorUi = app)
    var editor = editorUi.editor
    var graph = editor.graph

... then you can automate changes to the diagram using mxGraph's api [1] on the `graph' variable from the console.

Around this plugin mechanism I wrote some dirty hacks for personal use to make the editor behave more to my likings [2] (some features stopped working with recent versions of the desktop app), and an even dirtier Emacs mode for editing labels and having the js REPL available directly from Emacs when I need to run some code to fix my diagrams programmatically [3] (based on Indium [4] + the fact that electron apps can be launched with --remote-debugging-port=...). It's not pretty, but works enough for me, and it's only thanks to the customizability that diagrams.net allows.

[1] https://jgraph.github.io/mxgraph/docs/js-api/files/view/mxGr...

[2] https://gitlab.com/spellcard199/drawio-plugin-eight-droves-o...

[3] https://gitlab.com/spellcard199/emacs-drawio

[4] https://github.com/NicolasPetton/Indium

spellcard199 commented on Ask HN: What concepts have you never truly understood? · Posted by u/jportet

psyc · 4 years ago

Still don't have even the vaguest beginnings of a clue what the fuck a monad is, after reading 50 articles promising to make it simple, as well as their accompanying 500-comment HN threads. I suspect the real problem is that, as a C/C++/C#/ASM programmer, I lack concepts that are strict prerequisites, and people underestimate the importance and/or existence of those prerequisites.

What I did was I gave up and no longer click those articles.

spellcard199 · 4 years ago

One thing that made it difficult to me was that I didn't explicitly realize for a long time that there were two things to understand: what a monad is and why they are useful. Most explanations tell why it's useful, but it really clicked for me when I read through the book "Haskell Programming from First Principles" (Julie Moronuki, Christoph Allen) [1] and got to the monad chapter, which if you read the previous chapters explains really clearly what a monad is.

The way I understand monads: some data structure plus 2 functions, "return" and "join":

- "return": wraps something with the data structure. (no relation with the return keyword you are used to in most languages)

- "join": joins 2 layers of the _same_ data structures into one.

And that's it. It's just that simple what a monad is: in java it would be an interface with just these two methods.

Examples:

- "return" for List: takes a value and returns a List containing just that value.

- "return" for Maybe: takes a value and returns Maybe value.

- "join" for List: takes a List of Lists and returns a flattened List (2 outer layers joined).

- "join" for Maybe: takes Maybe Maybe value and returns Maybe value.

I think what makes these functional programming concepts hard to grasp most of the times is that communicating the boundaries of abstract concepts is hard in general, even if the concept itself is really simple, like a monad can be for a programmer.

As for why monads are useful, the explanations you can find online give a lot of examples. Just think of all the times you may have used flatmap for arrays: that's just map followed by the "join" for arrays, which is sometimes called flatten. The other operators you see used in haskell, like "bind" (>>=), can be derived from "join" and vice versa and are just conveniences to write code with less noise, like flatmap is.

Recap: monad is the name of the concept for things that have a "join" and a "return" functions defined. Basically "join" is the distilled concept of what a monad is.

[1] https://haskellbook.com/

(edit: formatting)

spellcard199 commented on The Kawa Scheme Language gnu.org/software/kawa/ind... · Posted by u/akvadrako

spellcard199 · 4 years ago

Here's a mybinder [1] (adapted from IJava Binder [2]) in case someone wanted to try Kawa without installing it.

[1] https://mybinder.org/v2/gl/spellcard199%2Fikawa-binder/06a90...

[2] https://github.com/SpencerPark/ijava-binder

spellcard199 commented on Typed Lisp, a Primer (2019) alhassy.github.io/TypedLi... · Posted by u/jedimind

lsh · 5 years ago

> because of Clojure's GPL-incompatible license

"GPL compatible: Optionally but not by default[3]"

- https://en.wikipedia.org/wiki/Eclipse_Public_License

spellcard199 · 5 years ago

In the page you linked it says the text you are quoting refers to the EPLv2, while Clojure is licensed under the EPLv1 [1]. It seems [2] they discussed changing Clojure's license to EPLv2, but decided not to.

[1] https://clojure.org/community/license [2] https://groups.google.com/forum/#!topic/clojure/uWAWm0xqrTI