Hacker News: arialdomartini

New comment by arialdomartini in "Iosevka is an open-source, sans-serif and slab-serif monospace font"

arialdomartini — Wed, 14 Oct 2026 22:37:37 +0000

When I program or I write maths I see and think of -> >>= <*> etc as a single, semantically meaningful symbols. Not only do I use a ligature for them, but I make my keyboard to use one single key. For the same reason I have a key emitting “forall” which Emacs then displays as ∀.

New comment by arialdomartini in "OpenCode 2.0"

arialdomartini — Wed, 14 Oct 2026 22:19:31 +0000

curl | sh should die

New comment by arialdomartini in "Turn off Apple Intelligence on macOS 27 and get its disk space back"

arialdomartini — Sun, 04 Oct 2026 20:17:18 +0000

Stop the curl | bash insanity.

https://nocurlbash.com/#en

New comment by arialdomartini in "Commit description as a thinking tool"

arialdomartini — Wed, 30 Sep 2026 19:51:45 +0000

Exactly! For anyone interested, I guess the previous comment refers to the Squash Workflow, which happens to be very idiomatic in Jujutsu

https://arialdo.codeberg.page/ju-ju-tsu/tutorial/moving/squa...

New comment by arialdomartini in "Commit description as a thinking tool"

arialdomartini — Wed, 30 Sep 2026 18:48:57 +0000

On top of this, it pays off to write the commit messages before the code

https://arialdomartini.github.io/pre-emptive-commit-comments

New comment by arialdomartini in "Ask HN: What are you reading?"

arialdomartini — Tue, 29 Sep 2026 20:30:05 +0000

The first volume of Software Foundations, and the first volume of À la recherche du temps perdu, Proust. Both very very slowly.

I guess it will take me years to have reason of both.

New comment by arialdomartini in "Font where each token is equal-width"

arialdomartini — Sun, 27 Sep 2026 16:41:33 +0000

I'd rather miss out a post about fonts than lend my support to nazism.

Personally, I don't buy the "i have to use Twitter, there's no good enough alternative" argument: we're talking about tweets, not some life-saving technology we can't live without.

New comment by arialdomartini in "Anecdotally, programmers dislike "reduce""

arialdomartini — Thu, 17 Sep 2026 06:14:17 +0000

Since you mention mnemonics, here are the mnemonics I use to remember the (symmetrical) differences between foldr and foldl

https://arialdomartini.github.io/fold-mnemonics

New comment by arialdomartini in "Kobo can run apps now"

arialdomartini — Fri, 21 Aug 2026 23:18:56 +0000

I’ve got only 1 big complain about Kobo: there’s no way to control the tickness of the pencil when writing on PDFs, and the size is too tick to take notes. There’s for epub but not for PDF. Suppprt told me they are not going to fix that.

Do you know of any alternative?

New comment by arialdomartini in "Pgtestdb's template cloning approach to testing is fast"

arialdomartini — Sat, 01 Aug 2026 23:23:29 +0000

My team and I are using the same approach since about 5 years. I collected a bit of notes about it here

https://arialdomartini.github.io/when-im-done-i-dont-clean-u...

New comment by arialdomartini in "πFS"

arialdomartini — Wed, 10 Jun 2026 22:13:09 +0000

You will love reading Jorge Borges The Library of Babel.

https://dn760100.eu.archive.org/0/items/TheLibraryOfBabel/ba...

New comment by arialdomartini in "PHP's Oddities"

arialdomartini — Sun, 24 May 2026 12:31:42 +0000

Hint: use test assertions instead of print + comments for the examples.

New comment by arialdomartini in "jj – the CLI for Jujutsu"

arialdomartini — Tue, 14 Apr 2026 22:55:26 +0000

Yes, that’s idiomatic in JJ. Honestly, I’ve been recommending the same workflow (first commit, then make changes) with Git too since years

https://arialdomartini.github.io/pre-emptive-commit-comments

If you want to have a workflow similar to Git with index, check out the Squash Workflow: basically, you would edit your files in a disposable commit having the same purpose of Git’s index.

New comment by arialdomartini in "How I write software with LLMs"

arialdomartini — Mon, 16 Mar 2026 10:20:15 +0000

Fair point. I could try with a harder problem. This still does not explain why Claude Code felt the need to use Opus, and why Opus felt the need to burn 12$ or such an easy task. I mean, it's 40 times the cost.

New comment by arialdomartini in "How I write software with LLMs"

arialdomartini — Mon, 16 Mar 2026 07:56:51 +0000

This is anecdotal but just a couple days ago, with some colleagues, we conducted a little experiment to gather that evidence.

We used a hierarchy of agents to analyze a requirement, letting agents with different personas (architect, business analyst, security expert, developer, infra etc) discuss a request and distill a solution. They all had access to the source code of the project to work on.

Then we provided the very same input, including the personas' definition, straight to Claude Code, and we compared the result.

They council of agents got to a very good result, consuming about 12$, mostly using Opus 4.6.

To our surprise, going straight with a single prompt in Claude Code got to a similar good result, faster and consuming 0.3$ and mostly using Haiku.

This surely deserves more investigation, but our assumption / hypothesis so far is that coordination and communication between agents has a remarkable cost.

Should this be the case, I personally would not be surprised:

- the reason why we humans do job separation is because we have an inherent limited capacity. We cannot reach the point to be experts in all the needed fields : we just can't acquire the needed knowledge to be good architects, good business analysts, good security experts. Apparently, that's not a problem for a LLM. So, probably, job separation is not a needed pattern as it is for humans.

- Job separation has an inherent high cost and just does not scale. Notably, most of the problems in human organizations are about coordination, and the larger the organization the higher the cost for processes, to the point processed turn in bureaucracy. In IT companies, many problems are at the interface between groups, because the low-bandwidth communication and inherent ambiguity of language. I'm not surprised that a single LLM can communicate with itself way better and cheaper that a council of agents, which inevitably faces the same communication challenges of a society of people.

New comment by arialdomartini in "I hate GitHub Actions with passion"

arialdomartini — Wed, 14 Jan 2026 22:36:47 +0000

First time I see jj being mentioned in a post not about jj. Made me very happy.

New comment by arialdomartini in "Capsudo: Rethinking sudo with object capabilities"

arialdomartini — Sat, 13 Dec 2025 07:56:34 +0000

Can you please elaborate on the use of sudo -u nobody? Do you use it interactively? I’m intrigued.

New comment by arialdomartini in "An Interactive Guide to the Fourier Transform"

arialdomartini — Mon, 08 Dec 2025 00:22:50 +0000

Brilliant!

I would just suggest the author to replace the sentence “99% of the time, it refers to motion in one dimension” with “most of the time” since this is a mathematical article and there’s no need to use specific numbers when they don’t reflect actual data.

New comment by arialdomartini in "Someone at YouTube Needs Glasses: The Prophecy Has Been Fulfilled"

arialdomartini — Wed, 26 Nov 2025 06:55:35 +0000

TIL Thank you pal, it perfectly works!

New comment by arialdomartini in "Jujutsu for everyone"

arialdomartini — Mon, 01 Sep 2025 06:17:45 +0000

You will be probably excited to give https://github.com/bolivier/jj-mode.el a try.