frontpage.
newsnewestaskshowjobs

Open Source @Github

fp.

Open in hackernews

Biff.core: system composition for Clojure web apps

https://biffweb.com/p/core/
25•jacobobryant•1h ago

Comments

holistio•1h ago
Recently my impression has been that whatever the agentic tools are best at is also what's best for solo projects or proof of concepts.

I used to love writing custom CSS, but Claude is just so much better at Tailwind that I ended up switching, even though I still kind of loathe the class soup.

Is AI any good at Clojure?

jacobobryant•1h ago
AI has been working out well for me writing Clojure, both in personal projects and at work. Documentation, not so much... I write all that by hand.

For Biff I've been using AI to generate a rough draft of all the code and then I take a manual pass over things before releasing. Seems to be a good middle ground.

oDot•1h ago
This is a bit of an "XY Problem" question.

I have migrated all my code to Gleam, FE and BE, Bun, browser, and BEAM.

Claude knows much less about Gleam than it does about Javascript or React. However the constraints of Gleam and its Elm inspired framework Lustre are so strong, Claude gives me much better results.

The only difference is I need to adjust my initial guidance.

bbkane•37m ago
How are you liking Gleam and Lustre? What went particularly well or badly?
mechanicum•37m ago
Last year, I thought it was awful. Even Opus would reliably unbalance parentheses on practically every edit and then enter a doom spiral of making things worse as it tried to figure out the right place to put a `)`.

Recently, I’ve been quite impressed, at least with Claude. At some point they figured out the parens issue, and the code is largely solid and idiomatic. I’ve mostly used it with Polylith apps, so the context for any given change is naturally well-defined. Usual issues with failing to reuse existing functions or make sound decisions about architecture, but no more so than I’ve seen with TypeScript or Rust.

I think there are a few points in its favour: it’s a very concise language, the documentation is terse but precise and comprehensive, and while there’s obviously nowhere near as much Clojure out there as there is JavaScript or Python, there is a lot. As the Clojure demographic skews toward experienced, senior programmers, I’d guess the quality of that corpus is probably well above average.

Java stack trace errors might even be an advantage now.

jwr•33m ago
AI is very good at Clojure. In fact, from what I can see, I get a much better experience on a large Clojure+ClojureScript code base than many other people. Surprisingly so. I'm still not sure why, is it higher token density of the language? My experience? Large, well-written and well-maintained code base to lean on as context? In any case, the experience so far has been excellent.

Claude Fable 5

https://www.anthropic.com/news/claude-fable-5-mythos-5
411•Philpax•40m ago•197 comments

System Card: Claude Fable 5 and Claude Mythos 5 [pdf]

https://www-cdn.anthropic.com/d00db56fa754a1b115b6dd7cb2e3c342ee809620.pdf
107•scrlk•39m ago•21 comments

Apple decided not to roll out Siri in EU after denied request for exemption

https://www.reuters.com/business/apple-failed-make-its-ai-tool-comply-eu-regulations-eu-commissio...
98•flanged•1h ago•198 comments

Making Graphics Like it's 1993

https://staniks.github.io/articles/catlantean-3d-blog-1/
522•sklopec•6h ago•75 comments

A giant star may have destroyed itself in one of the rarest explosions

https://phys.org/news/2026-05-giant-star-destroyed-universe-rarest.html
45•wglb•20h ago•6 comments

Launch HN: Transload (YC P26) – Measuring freight items with CCTV

16•nils_spatial•1h ago•4 comments

Microsoft's open source tools were hacked to steal passwords of AI developers

https://techcrunch.com/2026/06/08/microsofts-open-source-tools-were-hacked-to-steal-passwords-of-...
437•raffael_de•10h ago•161 comments

Biff.core: system composition for Clojure web apps

https://biffweb.com/p/core/
25•jacobobryant•1h ago•6 comments

Claude Mythos 5 / Fable 5

https://www.anthropic.com/claude/fable
15•kwar13•27m ago•1 comments

Can LLMs Beat Classical Hyperparameter Optimization Algorithms?

https://arxiv.org/abs/2603.24647
59•galsapir•2h ago•8 comments

Is Grep All You Need? How Agent Harnesses Reshape Agentic Search

https://arxiv.org/abs/2605.15184
65•Anon84•4h ago•29 comments

What it feels like to work with Mythos

https://www.oneusefulthing.org/p/what-it-feels-like-to-work-with-mythos
4•swolpers•20m ago•0 comments

OpenCV 5 Is Here: The Biggest Leap in Years for Computer Vision

https://opencv.org/opencv-5/
541•ternaus•3d ago•101 comments

'Sloppenheimer:' Amazon Employees Mock the Company's AI on Slack

https://www.404media.co/sloppenheimer-amazon-employees-mock-the-companys-ai-on-slack/
113•doener•1h ago•55 comments

Show HN: GentleOS – A pair of hobby OSes for vintage 32-bit and 16-bit PCs

https://github.com/luke8086/gentleos32
46•luke8086•2d ago•74 comments

Unified Controllable and Faithful Text-to-CAD Generation with LLMs

https://arxiv.org/abs/2604.19773
35•PaulHoule•3h ago•4 comments

Emerge Career (YC S22) Is Hiring a Founding Growth Marketer

https://www.ycombinator.com/companies/emerge-career/jobs/v0S1AEG-founding-growth-marketer
1•gabesaruhashi•5h ago

Let's Encrypt bans certificate usage in any US sanctioned territory [pdf]

https://letsencrypt.org/documents/LE-SA-v1.7-June-04-2026-diff.pdf
112•piskov•19h ago•85 comments

FCC wants to kill burner phones by forcing telecoms to get all customers' IDs

https://www.404media.co/fcc-wants-to-kill-burner-phones-by-forcing-telecoms-to-get-all-customers-...
146•berlianta•2h ago•104 comments

The iPhone's Last Stand?

https://stratechery.com/2026/the-iphones-last-stand/
109•swolpers•7h ago•157 comments

Show HN: Gravity – interactive solar-system simulator, from Newton to Einstein

https://qunabu.github.io/Gravity/
83•qunabu•5h ago•22 comments

Show HN: Learn from 30 historical figures, open source, nonprofit, self-hosted

https://github.com/chipmates/agoracosmica
11•micstradev•5h ago•1 comments

Using Optical Aberrations to Distinguish Real Astronomical Transients

https://arxiv.org/abs/2606.08319
17•solarist•2h ago•1 comments

Forever Young: how one molecule can lock plants in a youthful state (2025)

https://omnia.sas.upenn.edu/story/biologist-scott-poethig-plants-never-age
103•bryanrasmussen•9h ago•62 comments

The Effective Sample Size

https://alex.smola.org/posts/40-effective-sample-size/
12•jxmorris12•4d ago•1 comments

Painting the Internet: A Different Kind of Warhol Worm [pdf]

https://cspages.ucalgary.ca/~aycock/papers/artworm.pdf
5•jruohonen•1d ago•0 comments

SAT-Physical Thermodynamic Framework: treating constraints as a thermal system

https://github.com/alikamp/SAT_HARDNESS_P-NP
10•kauai1•3d ago•2 comments

Thi.ng – open-source building blocks for computational design and art

https://thi.ng
157•nmstoker•1d ago•20 comments

Cleaning up after AI rockstar developers

https://www.codingwithjesse.com/blog/rockstar-developers/
349•BrunoBernardino•8h ago•258 comments

An introduction to functional analysis for science and engineering

https://arxiv.org/abs/1904.02539
92•Anon84•2d ago•12 comments