Hacker News: raoulj

New comment by raoulj in "Polars 2.0"

raoulj — Tue, 06 Oct 2026 20:19:08 +0000

I use asof join frequently in polars! Happy to open the issue.

New comment by raoulj in "Polars 2.0"

raoulj — Tue, 06 Oct 2026 19:51:19 +0000

Looks like SQL does not support `asof_join()`, not sure what else it doesn't support.

New comment by raoulj in "Private prisons announce $1.4B in revenue as immigration detentions climb"

raoulj — Fri, 14 Aug 2026 15:32:47 +0000

YoY Net Income from CoreCivic's own financials (2025-2022): 116.50, 68.87, 67.59, 122.32

New comment by raoulj in "Claude Fable 5"

raoulj — Tue, 09 Jun 2026 22:18:09 +0000

How do you block users? Could be an interesting app to scrape HN and write some criteria to measure per-user SNR to then block

New comment by raoulj in "Claude Fable 5"

raoulj — Tue, 09 Jun 2026 18:04:08 +0000

On this thread and similar, I'm noticing that some strong opinions about $LLM_PROVIDER are coming from accounts without much post history. With so much on the line, and the way that HN can influence developer behavior, I wonder what ways we can responsibly consume opinions in a thread like this.

Not to cast too much criticism. HN is extremely well-moderated (thanks team!). But think we-developers need to be very wary.

New comment by raoulj in "Show HN: Hc: an agentless, multi-tenant shell history sink"

raoulj — Fri, 16 Jan 2026 13:13:01 +0000

I like using atuin[1] but the capture mechanism here's pretty convenient! Cool idea. May give it a try

[1] https://atuin.sh/

New comment by raoulj in "Digital ID, a new way to create and present an ID in Apple Wallet"

raoulj — Wed, 12 Nov 2025 21:11:29 +0000

For buying alcohol, I wonder if faceID will also somehow be required to verify the holder of the phone corresponds to the digital id

New comment by raoulj in "Polars Cloud and Distributed Polars now available"

raoulj — Thu, 04 Sep 2025 13:54:21 +0000

Is there any distributed polars for non Polars Cloud?

EDIT: nevermind see same question in this thread. The answer is no!

New comment by raoulj in "MakeShift: Security analysis of Shimano Di2 wireless gear shifting (2024)"

raoulj — Tue, 22 Jul 2025 16:42:49 +0000

Counterpoint - the benefits of wireless are there but the worry of your unit dying in the middle of a ride now replaces the concern of whether your derailleur is tuned and ready to go. It's easy for a shop to assemble, but now I'm worried about shorting the control unit of my di2 which would be a pricey fix. I have two bikes: one with and one without di2. Both work just as well and one costs much more.

I do love disc brakes though.

New comment by raoulj in "The DuckDB Local UI"

raoulj — Thu, 13 Mar 2025 13:41:28 +0000

Duckdb cannot plot on its own. You would need to bring in matplotlib or some alternative.

New comment by raoulj in "Can the US switch off Europe's weapons?"

raoulj — Sun, 09 Mar 2025 20:41:09 +0000

https://archive.is/0OXeJ

New comment by raoulj in "How the U.K. broke its own economy"

raoulj — Mon, 03 Mar 2025 21:10:18 +0000

Is figure 4's legend correct from the NTU link? It would seem that the grey is the top 1%, not bottom 50%.

New comment by raoulj in "Understanding the Odin Programming Language"

raoulj — Wed, 11 Dec 2024 15:00:06 +0000

Flipped through the language overview on the website and noticed that matrices are limited in how large they can be because they're stack allocated [1]. Ergonomics of the language otherwise look solid but for my use case that would be fairly constraining

[1] https://odin-lang.org/docs/overview/#technical-information-o...

New comment by raoulj in "United Healthcare Shooter Unconfirmed Manifesto"

raoulj — Tue, 10 Dec 2024 22:46:05 +0000

Seeing that too. Will change the title to: "United Healthcare Shooter Unconfirmed Manifesto"

New comment by raoulj in "[dead]"

raoulj — Tue, 10 Dec 2024 22:19:19 +0000

Can change the link to the shooter's personal site: https://pepmangione.com/manifesto/

New comment by raoulj in "Constraints Are Good: Python's Metadata Dilemma"

raoulj — Fri, 06 Dec 2024 18:16:38 +0000

Yeah. It's too slow. Editable installs make application development much faster.

New comment by raoulj in "Liquid Foundation Models: Our First Series of Generative AI Models"

raoulj — Mon, 30 Sep 2024 16:34:23 +0000

Can't give them too much credit ;) the task of counting r's in Strawberry was mentioned elsewhere as a "surprising" failure of LLMs

See previous thread: https://news.ycombinator.com/item?id=41058318

New comment by raoulj in "Starting Hospice"

raoulj — Tue, 06 Aug 2024 15:24:29 +0000

Goodbye, Jake. Thank you for your generosity in sharing your struggles, even now as it comes to its end. As a 20-something young man with hopefully many years ahead of me, your posts have encouraged me to live better, love more, and have more appreciation. Take it as some consolation that I and many others will read and reread your writings long after you're gone.

Bess and Athena and all your loved ones are in the intentions of my heart.

New comment by raoulj in "Using Zig to Unit Test a C Application"

raoulj — Mon, 18 Dec 2023 17:12:39 +0000

I've done this where I use python's ctypes library to write tests for a c codebase. This feels very similar in that it can be tricky to get the type interop correct the first time around. What other strategies/solutions do people like to use for testing their c projects?

New comment by raoulj in "SciPy: Interested in adopting PRIMA, but little appetite for more Fortran code"

raoulj — Thu, 18 May 2023 15:43:35 +0000

In the defense of the SciPy response, while there may be some programming language zealotry behind the position, it seems to be from a lack of expertise in SciPy to maintain its Fortran code that's pushing SciPy to avoid new Fortran additions. Hopefully OP gets PRIMA through! Been admiring this effort, Dr. Zhang.