frontpage.
newsnewestaskshowjobs

Made with ♥ by @iamnishanth

Open Source @Github

M8.7 earthquake in Western Pacific, tsunami warning issued

https://earthquake.usgs.gov/earthquakes/eventpage/us6000qw60/executive
688•jandrewrogers•9h ago•179 comments

Study mode

https://openai.com/index/chatgpt-study-mode/
940•meetpateltech•17h ago•668 comments

RIP Shunsaku Tamiya, the man who made plastic model kits a global obsession

https://JapaneseNostalgicCar.com/rip-shunsaku-tamiya-plastic-model-kits/
287•fidotron•13h ago•60 comments

Launch HN: Hyprnote (YC S25) – An open-source AI meeting notetaker

206•yujonglee•17h ago•115 comments

URL-Driven State in HTMX

https://www.lorenstew.art/blog/bookmarkable-by-design-url-state-htmx/
202•lorenstewart•12h ago•97 comments

iPhone 16 cameras vs. traditional digital cameras

https://candid9.com/phone-camera/
311•sergiotapia•20h ago•328 comments

Sleep all comes down to the mitochondria

https://www.science.org/content/blog-post/it-all-comes-down-mitochondria
27•A_D_E_P_T•1h ago•5 comments

A major AI training data set contains millions of examples of personal data

https://www.technologyreview.com/2025/07/18/1120466/a-major-ai-training-data-set-contains-millions-of-examples-of-personal-data/
8•pera•20m ago•1 comments

Learning basic electronics by building fireflies

http://a64.in/posts/learning-basic-electronics-by-building-fireflies/
268•signa11•17h ago•69 comments

Two Birds with One Tone: I/Q Signals and Fourier Transform

https://wirelesspi.com/two-birds-with-one-tone-i-q-signals-and-fourier-transform-part-1/
73•teleforce•11h ago•16 comments

ACM Transitions to Full Open Access

https://www.acm.org/publications/openaccess
264•pcvarmint•17h ago•24 comments

Show HN: The Aria Programming Language

https://github.com/egranata/aria
5•egranata_aria•3d ago•4 comments

Analoguediehard

http://www.analoguediehard.com/
24•gregsadetsky•3d ago•4 comments

Show HN: Cant, rust nn lib for learning

https://github.com/TuckerBMorgan/can-t
11•TuckerBMorgan•3d ago•0 comments

USB-C for Lightning iPhones

https://obsoless.com/products/iph0n3-usb-c-protection-case
149•colinprince•3d ago•102 comments

How the brain increases blood flow on demand

https://hms.harvard.edu/news/how-brain-increases-blood-flow-demand
124•gmays•15h ago•57 comments

FoundationDB: From idea to Apple acquisition [video]

https://www.youtube.com/watch?v=C1nZzQqcPZw
180•zdw•4d ago•34 comments

Show HN: Terminal-Bench-RL: Training long-horizon terminal agents with RL

https://github.com/Danau5tin/terminal-bench-rl
115•Danau5tin•23h ago•10 comments

Irrelevant facts about cats added to math problems increase LLM errors by 300%

https://www.science.org/content/article/scienceadviser-cats-confuse-ai
411•sxv•19h ago•200 comments

Show HN: I built an AI that turns any book into a text adventure game

https://www.kathaaverse.com/
253•rcrKnight•18h ago•100 comments

A month using XMPP (using Snikket) for every call and chat (2023)

https://neilzone.co.uk/2023/08/a-month-using-xmpp-using-snikket-for-every-call-and-chat/
118•ColinWright•15h ago•74 comments

My 2.5 year old laptop can write Space Invaders in JavaScript now (GLM-4.5 Air)

https://simonwillison.net/2025/Jul/29/space-invaders/
532•simonw•20h ago•356 comments

Structuring large Clojure codebases with Biff

https://biffweb.com/p/structuring-large-codebases/
81•PaulHoule•19h ago•4 comments

Elements of System Design

https://github.com/jarulraj/periodic-table
128•qianli_cs•16h ago•34 comments

Observable Notebooks 2.0 Technology Preview

https://observablehq.com/notebook-kit/
213•mbostock•19h ago•51 comments

Playing with more user-friendly methods for multi-factor authentication

https://tesseral.com/blog/i-designed-some-more-user-friendly-methods-for-multi-factor-authentication
74•noleary•1d ago•51 comments

Microsoft Flight Simulator 2024: WebAssembly SDK

https://docs.flightsimulator.com/msfs2024/html/6_Programming_APIs/WASM/WebAssembly.htm
137•breve•3d ago•84 comments

Supervised fine tuning on curated data is reinforcement learning

https://arxiv.org/abs/2507.12856
56•GabrielBianconi•14h ago•17 comments

CodeCrafters (YC S22) is hiring first Marketing Person

https://www.ycombinator.com/companies/codecrafters/jobs/7ATipKJ-1st-marketing-hire
1•sarupbanskota•12h ago

The Sail instruction-set semantics specification language

https://alasdair.github.io/manual.html
41•weinzierl•3d ago•8 comments
Open in hackernews

Elements of System Design

https://github.com/jarulraj/periodic-table
128•qianli_cs•16h ago

Comments

edomyrots•15h ago
Unlike the real periodic table, here you can add new elements also
jarulraj•13h ago
Exactly. It is intentionally open-ended: new "principles" can emerge, split, or retire as the taxonomy evolves. This is just version 1. The grid is a visual index and the fun part is mappin systems to "molecules" in different domains like OS, databases, computer architecture, distributed systems, programming languages, networking, and more..
culi•12h ago
New elements can also be added to the periodic table of elements. Nh, Mc, Ts, and Og were all added in 2016 and discovered within the past 2ish decades
iamwil•15h ago
My pet peeve on the internet (and the only one I consistently rant about) is "Periodic Table of X" The data is often visualized to look like the Periodic Table of Elements. At least this one doesn't make that mistake!

But then, are the system design principles periodic in some way? Does adding Y to one of the principles turn it into another? And if you add enough Ys, does it turn back into the same group again? Here, I find it's a resounding no.

Better to call it a Taxonomy of System Design instead.

/rant

dondraper36•15h ago
I know it's a rant, but my explanation for the popularity of such visualization is their familiarity. I mean, I'd also prefer a more accurate use of references to science, but I guess you will agree that "A periodic table of X" sounds pretty cool and makes you read the article :)
cwmoore•14h ago
Ok, now show me a molecule. The Periodic Table of Elements is a deep reference object, not a graphic design template.
metalliqaz•14h ago
it's both

just by it's ubiquity and success it has become a template for graphical design

peteforde•13h ago
The periodicity reflects the allowed solutions to the Schrödinger equation for electrons in atoms. It is not some branding teams' genius design innovation.

Ironically, you are in a superstate between "can" and "should".

mbb70•12h ago
It is _also_ a colorful collection of boxes that a billion+ people could instantly identify.

Cashing in on that global cultural awareness is just the kind of innovation a genius branding team needs.

It does annoy me when 'Periodic Tables of X' are just lists of color coded boxes, but I get it.

peteforde•12h ago
The problem - and it is a problem - is that this is not a good thing.

A billion+ people instantly identify police, but dressing like a cop is a crime.

emmelaich•6h ago
FWIW, there are other styles which emphasise other aspects. https://en.wikipedia.org/wiki/Types_of_periodic_tables
jarulraj•14h ago
Author here, great question :) If principles are the elements, we can think of each system as a "molecule" with some imagination. For example, an SQL database system has many principles:

1. Abstraction Lifting (Al) + Policy/Mechanism Separation (Pm): SQL states high-level intent with precise semantics, and logical operators are decoupled from physical operators.

2. Equivalence-based Planning (Ep) + Invariant-Guided Transformation (Ig): We apply algebraic rewrites that preserve semantics (e.g., join reordering, predicate pushdown) under stated invariants.

3. Cost-based Planning (Cm): We choose concrete physical operators and join orders using a cost model and so on..

jrm4•15h ago
Right, I'm thinking --- if you put it on a grid are there properties on rows? or columns?

If not, eeehhh

AnimalMuppet•15h ago
I wouldn't even call it a taxonomy. "A list organized into sections".

But that sounds far less grand...

jarulraj•13h ago
Yes :)
jarulraj•14h ago
Totally fair.. I am not claiming periodicity here :) I just wanted to use the "periodic table" as a visual metaphor. The goal is to outline a mostly orthogonal set of system design principles and illustrate cross-domain connections to students so that it is easier to compare trade-offs and discuss designs more precisely.
iamwil•12h ago
You keep doing you. It's a losing battle on my end. There will still be more Periodic Table of X on the internet after I've stopped yelling at clouds.
jarulraj•11h ago
:)
cocodill•15h ago
Somehow the TABLE is missing.
righthand•14h ago
More like list of system design principles stylized as periodic table of elements icons.
rossant•14h ago
There is one now in the table of contents.
jarulraj•13h ago
I added it now :)
douglee650•15h ago
Forked
pavlov•14h ago
A periodic table with no table and no periodicity.

Wouldn’t “Elements of System Design” have worked?

jarulraj•13h ago
Yes, I just borrowed the periodic table metaphor. "Elements of System Design" is a better name.
jarulraj•14h ago
Author here, appreciate the share :) I was not expecting this to get so much attention.

To clarify: this is indeed just a taxonomy of classic system-design principles. The periodic-table styling is a familiar metaphor; there is no claim that principles repeat periodically. The goal was to outline a mostly orthogonal set of design principles and highlight cross-domain connections across computer systems so it is easier to discuss designs precisely. Thanks for all the thoughtful feedback!

peteforde•13h ago
I came to say what others beat me to: this is not a periodic table, and calling it such is a legitimate disservice. It taints whatever value your content might hold because if it's presented as something that it's not, why should anyone trust it?

I strongly urge you to rename the project and most definitely update the body content of your README.md.

The best time was before you git pushed; the second best time is right now.

jarulraj•13h ago
Agreed, I just updated it to "Elements of System Design".
dang•11h ago
Ok, we'll put that in the title above as well. Thanks!
Liftyee•13h ago
As more of an embedded and electronics engineer, I've mentally toyed with extending these software principles into broader engineering, and some of them work decently. However, there is questionable value in making things like bridges modular. Either way, I did need a system design almanac like this one.
Swizec•9h ago
> questionable value in making things like bridges modular

Aren't most bridges these days modular and made of prefab components assembled on site? Afaik that greatly sped up construction over the past few decades.

They're also modular in that there are built-in weakpoints designed to constrain failures without taking out the whole bridge. You can see that in action if you look at photos of the Bay Bridge after Loma Prieta. Collapsed sections, but most of the bridge stayed up.

firesteelrain•8h ago
As a systems engineer who works in SysML near daily, these System Design pages really are not general enough to apply to any system. Really the focus is on software and it’s very opinionated. Arguably, the different “systems” could be “subsystems” described herein
cvcivic•5h ago
I believe this sort of thing will continue as people use LLMs to produce artifacts.

It will produce beautiful and thoughtful-looking work to even those with a discerning eye, but keep picking at it and you’ll see that bias and unintentional deception is endemic.

It’s not that LLMs can’t be used thoughtfully, but that it is essentially a bird laying rotten egg solutions by default, and only through conscientious continued hand-held process, throwing away the rotten yolk regularly, can it be used, and even then with care and only in certain circumstances. But, as it’s crafted to in its very nature to deceive in order to provide what is desired, it will eventually fool even those that understand its nature, with larger and larger consequences.

I have seen disease and famine destroy, and I don’t want to prevent solutions, but this is a beast, a great deceiver; have we not learned by now the story that will be told now that Pandora’s box has been opened?

jsjohns2•8h ago
It always strikes me how much commonality exists across different software engineering disciplines—not to mention across fields outside of engineering (e.g., how double-entry bookkeeping mirrors immutable design principles, or how federalism resembles class-based OOP).

Great to see an attempt at describing this phenomenon. A great start to what will surely be an awesome resource.