Hacker News: lkuty

New comment by lkuty in "Sao Paulo resident transforms degraded area into urban forest"

lkuty — Fri, 07 Aug 2026 06:01:16 +0000

I am happy I always read some HN comments before clicking on the OP link. I can save time. We should plant trees everywhere in the world, that's one of the great thing we can do for this planet and thus for us.

New comment by lkuty in "A Road to Lisp: Which Lisp"

lkuty — Mon, 27 Jul 2026 07:29:51 +0000

And also doing the exercises of The Scheme Programming Language 4th at the same time to refresh my Scheme knowledge. Using DrRacket as an IDE with the line `#!r6rs` to avoid using the Racket language.

New comment by lkuty in "A Road to Lisp: Which Lisp"

lkuty — Tue, 21 Jul 2026 10:15:39 +0000

I also have started doing SICP recently with Racket and `#lang sicp`. Sometimes I skip some exercises and will come back to them at a later time. It allows me to choose when to advance reading the text or make the exercises. So far in section 3.1.3. Discovered MIT Scheme in 1996 at university, got plenty of scheme books for years including SICP, and each year telling myself that I should do this classic. I am reading the pdf version of https://github.com/sarabander/sicp because it is more practical than using the paper book. Recently I bought the instructor's version of the book.

New comment by lkuty in "Structure and Interpretation of Computer Programs Video Lectures (1986)"

lkuty — Wed, 08 Jul 2026 18:07:28 +0000

I don't think it is necessary to avoid Racket since "The language #lang sicp provides you with a version of R5RS (the fifth revision of Scheme) changed slightly in order for programs in SICP to run as is." DrScheme is great for this and probably the easiest way to start.

New comment by lkuty in "Elixir v1.20: Now a gradually typed language"

lkuty — Thu, 04 Jun 2026 05:53:51 +0000

But then you have all the Erlang libraries for free which is huge. And you add to them the Elixir libraries and that gives you a lot of stuff, just like you get with languages with rich libraries e.g. Java, Ruby, ... I find it reassuring.

New comment by lkuty in "Brussels launched an age checking app. Hackers took 2 minutes to break it"

lkuty — Tue, 21 Apr 2026 09:08:31 +0000

Being belgian I thought that the city of Brussels did something. Using the term EU is more precise I guess in this case. For us, Brussels is just a town in our country, not the EU or representing the EU.

New comment by lkuty in "The Importance of Being Idle"

lkuty — Fri, 10 Apr 2026 14:31:33 +0000

L'oisiveté est la mère de tous les vices ;-) Which is a lie of course.

New comment by lkuty in "Tony Hoare has died"

lkuty — Tue, 10 Mar 2026 16:39:50 +0000

Rediscovering it through the Dafny programming language. Brings back memories of a 1994 University course.

New comment by lkuty in "Reverse-engineering the UniFi inform protocol"

lkuty — Tue, 10 Mar 2026 10:37:12 +0000

"The whole proxy is maybe 200 lines of Go with an in-memory MAC-to-tenant lookup table." Is it possible to have the source code or is it private ?

New comment by lkuty in "I'm reluctant to verify my identity or age for any online services"

lkuty — Tue, 03 Mar 2026 14:51:12 +0000

This is exactly what I am feeling (the title, didn't read). I can't see why I would give a copy of my official id card or a picture of my face to a basic service on the Internet. Seriously ? They do not deserve it. Even my phone number is too much but well Google has it now.

New comment by lkuty in "Some silly Z3 scripts I wrote"

lkuty — Fri, 27 Feb 2026 12:43:16 +0000

Like in the Dafny pogramming language. Cfr. https://www.youtube.com/watch?v=oLS_y842fMc

New comment by lkuty in "Lessons you will learn living in a snowy place"

lkuty — Thu, 12 Feb 2026 09:02:31 +0000

I realized this when I was on vacation in the french alps in summer time and saw a place dedicated for snow storage and labeled as such. I was "what ???" and then the penny dropped and I was impressed by that notion of having to store the snow somewhere since it does not disappear by itself. Funny

New comment by lkuty in "1 kilobyte is precisely 1000 bytes?"

lkuty — Wed, 04 Feb 2026 10:40:26 +0000

Yes. Go check https://en.wikipedia.org/wiki/Metric_prefix and also https://en.wikipedia.org/wiki/Binary_prefix if you want 1024 bytes.

New comment by lkuty in "Time Machine-style backups with rsync (2018)"

lkuty — Mon, 02 Feb 2026 12:57:27 +0000

Yes, I do not trust TM. That's why I have both a backup with TM for convenience and also to have all the files (including system files), and a mirror of the important files (basically my home directory) with `rsync`.

New comment by lkuty in "Presence in Death"

lkuty — Fri, 23 Jan 2026 17:51:10 +0000

Made me think of "How to do the jhanas" by Nadia Asparouhova: https://nadia.xyz/jhanas Cessation is impressive and the rest too.

New comment by lkuty in "The recurring dream of replacing developers"

lkuty — Sun, 18 Jan 2026 05:59:38 +0000

"(...) maybe growing vegetables or using a Haskell package for the first time, and being frustrated by how many annoying snags there were." Haha this is funny. Interesting reading.

New comment by lkuty in "Creating C closures from Lua closures"

lkuty — Tue, 16 Dec 2025 12:49:43 +0000

Tsoding made a video about it : https://www.youtube.com/watch?v=0o8Ex8mXigU

New comment by lkuty in "Advent of Code 2025"

lkuty — Sun, 30 Nov 2025 15:02:32 +0000

Do you plan to share your solutions on Github or something similar ?

New comment by lkuty in "The surprising benefits of giving up"

lkuty — Tue, 18 Nov 2025 09:38:20 +0000

Since my mother tongue is french, I guess I didn't choose the proper english word. In the context of an attack we sometimes see the "fight or flight" response. But I don't know what is the best term to translate "fuite" in this context.

New comment by lkuty in "The surprising benefits of giving up"

lkuty — Tue, 18 Nov 2025 07:09:32 +0000

This reminds me of Henri Laborit's book entitled "Eloge de la fuite" (in praise of flight) which states that when faced with stress, we can respond with action, flight, or inaction. Unlike the other two responses, inaction is toxic to the body. Maybe giving up corresponds to flight. I didn't read the article.