skysight-inc/HackerNews huggingface dataset:
Show HN: Mockmaster – Interview Simulation Tool for Any Tech Role, Any Language
I launched Mockmaster just a few days ago, and it’s already starting to take off! Mockmaster just made its first sale and gained 10 users in the last 12 hours, all through very early marketing efforts, which I hope is a good sign. It might not be much for some, but it's a big deal for me, as it's my very first product.

Why Mockmaster exists: Because tech interviews, especially at certain companies, have become more difficult than the bar exam. We’re in a tough market—although there is demand and there are workers, many of those workers can't get their foot in the door because the "doorman" asks questions they'll never use on the inside.

What Mockmaster does: Mockmaster simulates interviews using an AI model, designed to help candidates prepare for tough tech interviews. There are other good tools out there, but Mockmaster does it for less than a tenth of the cost, thanks to a more streamlined approach. No fancy videos, no AI interviewer, just well-crafted interviews tweaked by talented people and solid feedback. Candidates can then practice until they get the job.

Mockmaster also has "as real as they get" Big Tech interviews for some of the biggest tech companies, such as Google, Meta, X, and Apple.

Vision: I’d love to ultimately help improve the tech interview process as a whole, and seeing this early traction gives me hope. I’d still consider Mockmaster an MVP with many features I’d like to improve, so I’d love for anyone to try it out and let me know if the areas for improvement align with what I believe needs work.

Any feedback, however harsh, is welcome.

Mockmaster has no free tier, so if you want to try it out, please email me at oli@mockmaster.dev, and I'll give you free access to the app.

Thanks for reading, and for your help!
I fucking hope not
This is the goal, in the same way Google does for FCM: the Play Services maintain a connection with their servers to get the notifications and then send them to the different apps. Here's it's the same with a server you control and know it won't read whatever is in that notification, without draining the battery because there's only the Unified Push app maintaining the connection.
> As it stands that threat has only increased

The imaginary threats have increased?
lol not ai! yeah i do. so basically i'm building: https://exponential.markets/ and currently looking to understand if repositioning our brand for investors to invest in hedge funds will be more converting rather than invest in algorithms
When I found out the underlying issue, I basically applied the patch suggested in the ticket.

It's been great since.
>If you didn't go down any of the rabbit holes, you'd end up with a US$60k machine built around US$5k ballscrews and ABS and whatnot.

Honestly that's the normal way to do product design, start with the expensive version that works and then slowly redevelop it to use cheaper parts, or make big enough purchases that the cost of the parts naturally comes down.

I get that you were involved in the project, and won't hear of any criticism, but people serious about shipping instead of tinkerers would have done things differently, and there is no reason to deny or get upset about that.
Surprise finding reveals mitochondria come in two different types
I believe this is not theater, but rather his genuine thoughts. I think his conclusions drawn from employment rate indicators are quite optimistic about Russia's economy. However, as you mentioned, it could also be like blind men touching an elephant, leading to incorrect conclusions.
Per the Lindy Effect, a published book has a higher likelihood of still being readable centuries from now, than a Youtube video.
I think it becomes clearer when considering that these are all equivalent:

const a_struct: StructType = StructType{ .foo = "baz" };

const a_struct = StructType{ .foo = "baz" };

const a_struct: StructType = .{ .foo = "baz" };
+1 for Leanpub, a great platform run by amazing people.
Devbox: Reproducible dev environments using Nix
Small businesses like Cafes? They will hopefully get this to laundromats once this bot can iron, too. Not even once did I iron or fold my laundry back in university ...
Lunch and breakfast are serious business.
Thanks for the fix!

Sooo, what is money for?
Assuming a lunch break is not included as part of 8 hours, do you really think most exmployees are productive for a full 8 hours?

Most office workers spend an exorbitant amount of time twiddling their thumbs, reading emails, going to the restroom. On average, I'd say knowledge workers are typically productive for about 2 to 3 hours per day. I'd estimate physical laborers range up to 4 or 5 hours.

Assuming 8 hours of full productivity is a strange number to focus on
Aggregation may be useful to keep articles for the amount of time YOU decide. Blogs come and go and with it the articles. Or they move to different URLs and then are lost until you find them again.
Giving you the benefit of the doubt, I think you mean mean that everything has side effects, not that everything has actual ill effects. But even then, not everything has measurable side effects. There is a common saying of "the dose makes the poison" for a reason. I'll leave it up to you to think up some examples, they are innumerable.
Only if the thruster is perpendicular to the axis of rotation.
No, you just don’t get it. It’s the weave, bro. You’re just not smart enough to understand it, bro.
Homeowners' Dues Are Rising–and Harder to Avoid
I tested both on Firefox and Chrome (on Linux).
One key point is that I set the zoom to 150%; when it's the case, the vertical size of the left panel changes when (un)folding, which changes the aspect ratio of the right panel.
Ask HN: What best way to build financial record transaction
so I tried to build wallet app that handle multicurrency and record transaction

so I kinda need reference material for best way to make it in terms of foolproof way
I heard somewhere to build ledger and using decimal to count cent

if you can link paper or use case that would be really helpful

btw: I planning to using rust and postgress for that if anyone asking
It depends on the usage patterns of your site.

If it's write heavy, and you need to use transactions for writes, you're screwed either way. (i.e. don't use sqlite)

If it's not write heavy, but you enabled `ATOMIC_REQUESTS = True` then all your requests will be serialized (which is obviously bad)

If your site does not write often and your reads don't require transactions, using BEGIN IMMEDIATE TRANSACTION is probably fine. Your transactional writes will still be serialized but if they don't happen often it's probably fine for a low/medium-low traffic site.
Honestly this makes more sense to me in human terms than the possibilities suggested in the article.
I think even in this context there is a chance that the scale is tipping more and more towards going the renewables way will be more lucrative than not, and those deniers will not deny money.

Then again, maybe I‘m too clueless on this topic + naive.

My strongest data point is that the Chinese government is heavily pushing renewables, and I‘m pretty sure they don’t to this due to the selfless goodness of their hearts.
Thanks for the prompt ideas.
About point 1 (Brainstorming building something) maybe something like this?
https://www.pulsafutura.com/project-brainstorming-tool-analy...
Strategic Analysis: Pros and Cons;
Key Objectives;
Target Audience;
Success Metrics;
Market Context;
Implementation Assessment;
Risk Management;
Welp, I suddenly realized I was replying to one of the creators of Django. (Why bring up a rails article!) I feel so awkward now...
As noted elsewhere; turns out it’s 96 hours of inactivity, no other criteria.
Please consider changing the name - it's already hard to find the pages out there talking about how to fix technical issues or use the javascript developer console or such as a jaws user, and your project will end up hiding some of those or at least causing confusion. How about JAWSM (pronounced like awesome), like benmccann suggests?
That reminds me of Dr. Greenamyre in Pittsburgh who thinks he accidentally gave himself Parkinsons researching rotenone in pesticides [0]

[0] https://youtu.be/7mYEqUrx6dQ?si=x4P6pkUCd7EvCe1N&t=152
This doesn’t answer the question why Zig doesn’t have default argument values.
Excellent, now this should be legalized for treating other people's cancers too. We're allowing millions of people to die unnecessarily by restricting the right to treatment.
Notes on Richard Dedekind's *Was sind und was sollen die Zahlen?* (2005) [pdf]
Maybe only a teaser of a shape, but it looks elegant.

Elon take note. EVs don't have to be butt-ugly.
Yes, it's a balancing act. I think it's better to have safer defaults here, not prioritizing extra performance. People who are concerned with performance to the degree where checksums would matter need to consult configuration anyway (in many aspects, not only this one) and can disable this specific thing easily.

For the reference, change is in https://github.com/postgres/postgres/commit/04bec894a04cb0d3... (so should land in PostgreSQL 18 in a year, unless it will get reverted for some reason).
Huh? The average working week in the EU is 37.5 hours a week, or 7.5 hours a day: https://ec.europa.eu/eurostat/web/products-eurostat-news/w/d...

Breakfast and lunch are not paid breaks in any EU country as far as I know.
> does anyone do laundry more often than once a week

I can tell you do not have children. We frequently run 2 loads per day...

Also, I challenge anyone to look at that video from 2:00 to 2:45 (which is 90 seconds IRL) and tell me with a straight face this has anything to do with "intelligence". I have seen human babies at 5 months old severely outperform this thing.
Yes, but!

Exponential pace of progress isn't usually just one thing; if you zoom in, any particular thing may plateau, but its impact compounds in enabling growth of successors, variations, and related inventions. Nor is it a smooth curve, if you look closely. I feel statements like "a 405b model is not 5 times better than a 70b model" are zooming in on a specific class of models so much you can see the pixels of the pixel grid. There's plenty of open and promising research in tweaking the current architecture in training or inference (see e.g. other thread from yesterday[0]), on top of changes to architecture, methodology, methods of controlling or running inference on exiting models by lobotomizing them or grafting networks to networks, etc. The field is burning hot right now, we're counting space between incremental improvements and interesting research directions in weeks. The overall exponent of "language models" power may just well continue when you zoom out a little bit further.

--

[0] - https://news.ycombinator.com/item?id=42093112
To repeat this, there has to be a condition: "the oppressed can't bear it anymore." Economically, they are totally fine. They are just cattle who are fed and expected to behave as the owner requires. Ninety percent of Russians who didn't leave the country after 2021 have no incentive to be in any struggle; they are fed, they have work, they have a roof. The conditions that helped in 1917 were related to an economic disaster that the majority of the population experienced, and this was influenced by the 1st WW as well (which took a huge financial toll on the elites as well).
You should read Simon Peyton-Jones' paper "How to write a financial contract". His starting point is the idea of a compositional language of cooking primitives.
Perfect according to whom? You are not developing it, your needs are only as relevant as it brings money to whoever is developing the recommendation system.

A recommendation system that never interrupts you is less rentable, it’s like discrete and decent ads, it’s called a phone book and it died a long time ago because there’s no money in that anymore.
14 hrs ago: https://news.ycombinator.com/item?id=42096090
It has an edit and preview panes, its not WYSIWYG (single panel).
Checkout Dime on App store, its a great personal finance management app! Super sleak UX
is there a plugin to convert the ast to json? Similar to the mistune package in python. I'm using this as part of a rag ingestion pipeline and working with markdown ast provides a flatter structure than raw html
This isn’t something inherent to SPAs, though sadly many (most?) do omit the history api and don’t provide usable URLs nor back/forward navigation.
The impact of AI coding for developers
The problem is that in order to delete an unused variable, you may need to delete a huge chunk of code which would be useful later when you want to actually use the variable.
Why luxury cheese is being targeted by black market criminalS
Simple: I highly doubt they're willing to risk a scandal that would further tarnish their brand. It's still reeling from last year's drama, in addition to a spate of high-profile departures this year. Not to mention a few articles with insider sources that aren't exactly flattering.
A language that allows you to arbitrarily omit parentheses would be impossible to parse. That’s not the case for unused variables.
These things can be huge for agriculture
Mac mini (2024) Repair Manual
Story Structure 101: Super Basic Shit
What reason you have to believe we're anywhere close to the middle of the S-curve? S-curve may be only sustainable shape in nature in the limit, it doesn't mean any exponent you see someone claims is already past the inflection point.
What worked for me in Estonia was to find a C++ job (robotics) then gradually push for Rust as I gained seniority and autonomy. Now maybe 70% of the code I write is Rust, both robot side and backend :)
It's encrypted, period. Apple having the key doesn't make it plain text.
The article says that it was no longer functional (in its communications abilities, at least) by that point

> Launched in 1969 ... the spacecraft ceased working a few years later ...

Also, what makes you think the US didn't already have their own satellites for that purpose?
This appears to be the first cheap(ish) Mac with replaceable storage in over 10 years.

The manual clearly shows how the SSDs are removable and that the module is different between the M4 and M4 Pro versions.
One of the "weird effects" of the Ukraine war is that Russia went from upper-middle income country to a high income country and Ukraine went from lower-middle income to upper-middle income:

https://blogs.worldbank.org/en/opendata/world-bank-country-c...
Lynis author here. While some defaults definitely became better, often due to the kernel itself being better protected, there is still a lot of room for improvement. The distribution often can't make things too strict, to prevent common issues. Keep also in mind that it is not just the OS itself, but especially the parts that get added over time (users, software, configuration file changes) that introduce the biggest flaws. The aim of Lynis is to do a regular health check, giving the sysadmin the chance to tighten things where needed or correct those things that got out of spec.
It looks nice.
Are there plans to (try to) remove all the GET request parameters from the authentication flow?
The Authorization request maybe seems one (the browser would need to support that, or use Javascript, or maybe a shortlived cookie)
And also "8" GET tokens using the code, is potentially one?
Maybe someone in the HN crowd knows that: Why are these robots moving so slowly? Is it for safety or does speed increase the difficulty significantly?
I thought this was crazy, but it’s a thing apparently:

https://en.m.wikipedia.org/wiki/Triple_parentheses

Interesting times we live in…
C99 has compound literals which allows you to call functions that take struct values or pointers to structs like this:

my_func((my_type){ .x = 1, .y = 2 });

my_func(&(my_type){ .x = 1, .y = 2 });
Exploded view and orderable parts are shown here:

https://support.apple.com/en-us/121008
I got really excited for a second for people who need to work on a lab thinking they will be able to work from home now...
cool project!

Visualizing tabular data often presented some challenges, as I had to rely on tools like Google Sheets or Colab + Pandas for quick cleaning and wrangling before exploring different visualizations.

I think having more client-side data cleaning capabilities would make it even more powerful
How did Claude Sonnet 3.5 fair?
The youtube links explains why: "No audio as a result of copyright." And also has a link to the audio that you can play alongside.
I'm aware of how the UK grid prepares for ad breaks, but that doesn't answer my question at the top. How many people break kettles often enough to want a repairable kettle? It's already a simple design that lasts a long time. If I wanted to improve it, I'd remove all contact with the water just like a high power microwave does. That way it can last forever.

I'm not criticizing the student. That'd be quite hypocritical given how many impractical designs I've created in my life and how many times I've failed to achieve product-market fit. I'm just criticizing the article.
Not the OP, but you raise good points. Performance might also be a concern, thinking of languages like Python and its ast package (not sure that’s accessible without going through the interpreter).

For a tool I’m writing, the tree-sitter query language is a core piece of the puzzle as well. Once you only have JSON of the concrete syntax trees, you’re back to implementing a query language yourself. Not that OP needs it, but ast-grep might?
For factories and closed environments, stuff is getting good fast, but for the rest of the "real world", no robot or AI is practical without human supervision. I automate physical things for a living and have thus become convinced.

The first thing that robot will do is start a dryer that a toddler climbed into because it isn't that aware of the world around it.

And that will be the end of general purpose domestic robots.

That or knocking over candles or fucking up something else simultaneously trivial and terribly dangerous in context.

I dream the same dream of a general purpose machine, but I think it may never be possible, and if it is we're a long way out.
That is also why Lynis does not follow a specific set, but applies generic principles from multiple sources. Yes, some of the items may be default (now) in Linux distributions, but often they are still aren't. For example, most systemd services definitely can use more strict defaults. The distribution is typically not making the changes, to avoid breaking things for the end-user. This is where Lynis comes in, being independent of any big commercial organization (yes, looking at you Red Hat). While working on Lynis for 17 years now, I can say some things definitely improved in Linux distributions, but still so many things that could be much better secured out-of-the-box.
This robot cannot "do your laundry". It is the same toy as always in robotics. It works in very specific environments, with very specific laundry, as long as no one gets in the way and nothing bad ever happens, you've trained it to do your laundry, you never buy anything unusual, nothing gets tangled too much, etc.

They have an extremely specific definition of the word "laundry". Three specific shirts of size M, L, and XL, and two pairs of shorts of size 28 and 36. Then they do a mobile task on three specific shirts of size M, M, and XL, and two shorts of size 32 and 31W.

That's not "laundry" the way any lay person would understand.

It's sad to see yet another group hype their work for money. What they did do, is invest a tremendous amount of engineering effort to scale things up, to collect data, and to see what changes models need to scale well in this space. That's nice and useful. It's something that as academics we generally cannot afford to do. And won't be able to afford any time soon because they don't share their data and none of their results are reproducible.

PS: Where is this title from? "Physical Intelligence's first generalist policy AI can finally do your laundry " It's not in the article. It's very misleading.
Hey, is this remote in the US only? Or is it remote globally?
Finally someone teaching AI to do all the stuff I _dont’t_ want to do.
Not the author, but just looking at it, and playing with it, I’d say ease of use is the obvious one. Availability in the browser any time anywhere seems nice.
Under $100: Breathe Right nasal strips.

You can get off-brand ones for about 10ct a strip. For 3 bucks a month I get much improved sleep.
Is this[1] not software?

[1] https://en.wikipedia.org/wiki/Jaws_(video_game)
M4 Mac Mini AI Cluster
It's not knowledge then, it's beliefs (which might be true, but we don't know yet)
> Breakfast and lunch are not paid breaks in any EU country as far as I know.

One 30 minute break (lunch break) is paid in Croatia and Slovenia
Direct ways offer an intermediate process coding a message. Unfortunately doing it oneself is astonishingly glacial; using a linebreak algorithm prolly would somehow help, nonetheless dyads & monads come slowly; difficulty besets the coding.
Unique, intuitive and single page expense/income tracker for iOS/iPadOS/macOS
Designed with simplicity in mind, this app allows you to effortlessly manage your spending and income on a single intuitive page. With support for tracking multiple, unlimited accounts, staying on top of your finances has never been easier. No more navigating through complicated menus or multiple screens. Simplify your budget and take control of your finances today!
I doubt it would be seen as scandal. They can simply generate training data for these questions just like how they generate for other problems. Only difference is probably pay rate is much higher for this kind training data than most other areas.
>> According to you, what is the underlying distribution of intelligence and why

I think intelligence is normally distributed, like all other human characteristics. When transformed to win rates based on intelligence that becomes a different distribution. Your argument is centered on the 2nd distribution.
> Historically, Pepsi won taste tests and people chose Coke. Because Pepsi is sweeter, so that first sip tastes better. But it's less satisfying—too sweet—to drink a whole can.

As a Pepsi drinker (Though Pepsi Max/Zero), I disagree with this. That's one interpretation, the other is the one Pepsi was gesturing at - that people prefer Coke when knowing it's Coke, because of branding, but with branding removed, prefer Pepsi.

I personally drank Coke Zero for years, always being "unhappy" when a restaurant only had Pepsi, until one day I realized I was actually enjoying the Pepsi more when not thinking about it, and that the only reason I "preferred" Coke was the brand. So I know that this story can also be true, at least on n=1 examples.
JavaScript is named after Java the programming language, which is named after Java the island, which is correctly pronounced that way.
Not impossible: some lisps allowed arbitrary omission of close parens (upon finding a closing square bracket).

https://news.ycombinator.com/item?id=29093339

http://arclanguage.org/item?id=20979
I started writing a book along side of every video course I make. (I make educational software videos, and discovered that some really enjoy the written version apposed to video - even for software!)

I just use LaTeX with some fancy packages:

https://github.com/princefishthrower/dev-book-template

I too think there can always be more long format literature out there, in a world seemingly dominated by short articles and tweets