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How fast is a macOS VM, and how small could it be?

https://eclecticlight.co/2026/05/02/how-fast-is-a-macos-vm-and-how-small-could-it-be/
94•moosia•4h ago•27 comments

Open Design: Use Your Coding Agent as a Design Engine

https://github.com/nexu-io/open-design
36•steveharing1•1h ago•12 comments

Why does it take so long to release black fan versions?

https://www.noctua.at/en/expertise/blog/how-can-it-take-so-long-to-release-black-fan-versions
391•buildbot•9h ago•177 comments

Why are there both TMP and TEMP environment variables? (2015)

https://devblogs.microsoft.com/oldnewthing/20150417-00/?p=44213
85•ankitg12•5h ago•48 comments

Show HN: Piruetas – A self-hosted diary app I built for my girlfriend

https://piruet.app
41•patillacode•3h ago•34 comments

Show HN: DAC – open-source dashboard as code tool for agents and humans

https://github.com/bruin-data/dac
50•karakanb•2d ago•11 comments

Dotcl: Common Lisp Implementation on .NET

https://github.com/dotcl/dotcl
67•reikonomusha•1d ago•7 comments

Ti-84 Evo

https://education.ti.com/en/products/calculators/graphing-calculators/ti-84-evo
496•thatxliner•17h ago•408 comments

Becoming a father shrinks your cerebrum

https://www.economist.com/science-and-technology/2022/10/21/becoming-a-father-shrinks-your-cerebrum
12•andsoitis•2h ago•6 comments

Show HN: Browser-based light pollution simulator using real photometric data

https://iesna.eu/?wasm=skyglow_demo
28•holg•4h ago•6 comments

Show HN: Mljar Studio – local AI data analyst that saves analysis as notebooks

https://mljar.com/
30•pplonski86•3h ago•3 comments

Show HN: Filling PDF forms with AI using client-side tool calling

https://copilot.simplepdf.com/?share=a7d00ad073c75a75d493228e6ff7b11eb3f2d945b6175913e87898ec96ca...
27•nip•4h ago•14 comments

Artemis II Photo Timeline

https://artemistimeline.com/#artemis-ii-walkout-nhq202604010003
254•geerlingguy•2d ago•21 comments

Craig Venter of Human Genome Project Dies at 79

https://www.economist.com/obituary/2026/05/01/craig-venter-raced-to-decode-the-human-genome
7•bookofjoe•1h ago•1 comments

New research suggests people can communicate and practice skills while dreaming

https://www.newyorker.com/culture/annals-of-inquiry/its-possible-to-learn-in-our-sleep-should-we
379•XzetaU8•19h ago•224 comments

Show HN: Pollen – distributed WASM runtime, no control plane, single binary

https://github.com/sambigeara/pollen
22•sambigeara•2d ago•4 comments

An unknown Sega Saturn project has come to light after 29 years

https://32bits.substack.com/p/under-the-microscope-pyramid-unreleased
15•bbayles•1h ago•0 comments

Bitmap and tilemap generation from a single example

https://github.com/mxgmn/WaveFunctionCollapse
45•futurecat•2d ago•8 comments

To Restore an Island Paradise, Add Fungi

https://e360.yale.edu/digest/atoll-islands-sea-level-rise-fungi
87•Brajeshwar•2d ago•18 comments

SFO Gate Explorer

https://www.flysfo.com/passengers/services/gate-explorer
9•CaliforniaKarl•1d ago•10 comments

CollectWise (YC F24) Is Hiring

https://www.ycombinator.com/companies/collectwise/jobs/rEWfZ6R-senior-forward-deployed-engineer
1•OBrien_1107•9h ago

Show HN: Large Scale Article Extract of Newspapers 1730s-1960s

https://snewpapers.com/
20•brettnbutter•5h ago•12 comments

GameStop Preparing Offer for eBay

https://www.wsj.com/business/deals/gamestop-preparing-offer-for-ebay-1678e6de
39•voisin•2h ago•26 comments

Ask.com has closed

https://www.ask.com/
322•supermdguy•9h ago•176 comments

DeepSeek V4–almost on the frontier, a fraction of the price

https://simonwillison.net/2026/Apr/24/deepseek-v4/
223•indigodaddy•20h ago•122 comments

I'm Peter Roberts, immigration attorney who does work for YC and startups. AMA

177•proberts•22h ago•225 comments

LFM2-24B-A2B: Scaling Up the LFM2 Architecture

https://www.liquid.ai/blog/lfm2-24b-a2b
52•nateb2022•2d ago•9 comments

Russia Poisons Wikipedia

https://www.bettedangerous.com/p/russia-poisons-wikipedia
7•exceptione•38m ago•1 comments

A report on burnout in open source software communities (2025) [pdf]

https://mirandaheath.website/static/oss_burnout_report_mh_25.pdf
106•susam•14h ago•41 comments

Lib0xc: A set of C standard library-adjacent APIs for safer systems programming

https://github.com/microsoft/lib0xc
164•wooster•18h ago•61 comments
Open in hackernews

Kate and Python Language Server

https://akselmo.dev/posts/kate-python-lsp/
79•todsacerdoti•12mo ago

Comments

josteink•12mo ago
As someone who recently set up something similar in Emacs with eglot I had to ditch Python-LSP-server.

It was so incredibly slow to respond, even on a M2 Max MBP, that it lowered my productivity by orders of magnitudes (and made Emacs laggy).

Maybe I did something wrong? I don’t know.

What I do know is that I tried pyright instead as a different LSP-server for Python and I haven’t looked back.

It’s a night and day difference. It’s snappy and everything works as expected, with venvs and mypy too.

kstrauser•12mo ago
I agree. I really wanted to like python-lsp-server (aka pylsp), but I felt it's kind of a mess getting everything set up and configured. Loathe as I was to configure a server running in Node to help my editor with Python code, it's far and away the best option I've found so far.

I do hope "ruff server" will do for Python LSPs what ruff did for linting and formatting.

nerdponx•12mo ago
I haven't tried the Ruff server yet, but Jedi Language Server is usably fast, and does a good enough job.
kstrauser•12mo ago
Jedi's very nice for refactoring and auto-completion! I get more value from linting and type checking, though, and Jedi doesn't handle those. Pairing it with something like pyright is a great combination if your editor lets you connect to multiple servers.
kristjansson•12mo ago
It's not ready yet, but https://pyrefly.org/ might be a good competitor/complement in the future
tiltowait•12mo ago
Looks promising! It doesn't work with my poetry environment, but I like what I see so far. Definitely something to watch.
team_pyrefly•11mo ago
Hi! I'm on the team behind Pyrefly. Thanks for taking a look and raising the need for poetry support. We added a GitHub issue to track that here: https://github.com/facebook/pyrefly/issues/166
arccy•12mo ago
last time i looked the people were recommending basedpyright: https://github.com/DetachHead/basedpyright
Hasnep•12mo ago
I've been recommending it whenever Pylance comes up on HN or Lobsters, the docs explain how to set it up on the most popular editors: https://docs.basedpyright.com/dev/installation/ides
wormius•12mo ago
Not particularly relevant to the core article, but just a dumb thought re: the LSP/LS annoyance mentioned in the intro.

I think maybe some of it stems from 'ls' the command. If I saw something called py-ls instead of py-lsp, I may think it's a python based ls command. "Name Collision" as it were.

Anyways off to read the rest of the article...

ogoffart•12mo ago
I wrote a language server too, and I also went with "-lsp" naming because it's way more recognizable. "LSP" is kind of a brand. If you look at the list at https://microsoft.github.io/language-server-protocol/impleme... a lot of them are named -lsp.
dundarious•12mo ago
Might not be an issue for your typical setup, but I suggest quoting your variable expansions in bash. Otherwise, spaces, etc., will lead to issues.

It would also make sense to use path after it is defined, instead of sometimes using `$1` again.

But I'm confused by `cd`ing into `$path` and then checking paths that are prefixed by `$path`... I assume that is an error, and you won't run it like `script.sh ./work/project` and expect a path like `./work/project/work/project` or `./work/project/project` to exist. Can just `cd "$1"` and be done.

Mildly surprised the .venv/venv check isn't an elif as well.

  #!/usr/bin/env bash
  cd "$1"
  if [ -d ./.venv ]; then
    source ./.venv/bin/activate
  elif [ -d ./venv ]; then
    source ./venv/bin/activate
  fi
  exec pylsp --check-parent-process