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Rich Errors, a.k.a. Error Union Types: Motivation and Rationale

https://github.com/Kotlin/KEEP/blob/main/proposals/KEEP-0441-rich-errors-motivation.md
1•vips7L•1m ago•0 comments

Show HN: type-kanren – type-level microKanren in TypeScript

https://github.com/eduhenke/type-kanren
1•eduhenke•6m ago•0 comments

I made an Excel add-in to diff sheets and check changes

https://github.com/pipedreamerai/SheetHappens
1•randomness3249•7m ago•1 comments

Show HN: Sharplink Gaming Stock Dashboard

https://sbet.rocks/
1•spacesh1psoda•8m ago•0 comments

Meta receives 48 hour warning over illicit gambling ads in Brazil

https://readwrite.com/meta-legal-warning-illegal-gambling-ads-brazil/
1•dotcoma•9m ago•0 comments

Wokwi: Most Advanced ESP32 Simulator

https://wokwi.com/
1•pykello•9m ago•0 comments

Show HN: Piclabs AI:Ad Maker Easy Creative Ads

https://www.piclabs.org/
1•rooty_ship•12m ago•0 comments

Show HN: Bsdloader – Minimal (~123KB), reproducible x86_64 FreeBSD UEFI loader

https://github.com/losfair/bsdloader
1•losfair•12m ago•0 comments

Apple Website from Start to Present

https://twitter.com/TheAppleDesign/status/1958938747866947922
1•ksec•13m ago•0 comments

Permacomputing 101 [video]

https://www.youtube.com/watch?v=BNYxAdjl1f0
1•surprisetalk•21m ago•0 comments

Minnesota Attorney General sues TikTok for 'preying on Minnesota young people'

https://www.mprnews.org/story/2025/08/19/minnesota-attorney-general-sues-tiktok-for-preying-on-minnesota-young-people
1•dotcoma•21m ago•0 comments

Developer Trust making SuperDevPro more grow

https://superdevpro.com
1•M0HD197•23m ago•0 comments

I grew my product from 0 to 1k users – here are 5 things I learned

1•zy5a59•26m ago•0 comments

Two laptops, six plugs:The South Korean cafes grappling students who dont leave

https://www.bbc.com/news/articles/c80d9e8ep7do
2•rakeshb03•26m ago•0 comments

The Pursuit of Life Where It Seems Unimaginable

https://www.quantamagazine.org/the-pursuit-of-life-where-it-seems-unimaginable-20250820/
1•tzury•37m ago•0 comments

Websites and web developers mostly don't care about client-side problems

https://utcc.utoronto.ca/~cks/space/blog/web/WebsitesDontCareAboutClients
2•zdw•39m ago•0 comments

Apple Watch designs allegedly stolen and provided to Oppo

https://appleinsider.com/articles/25/08/22/apple-watch-designs-allegedly-stolen-and-provided-to-oppo
1•bundie•39m ago•1 comments

Nvidia halts China-focused H20 AI chip after Beijing flags security risks

https://www.reuters.com/world/china/nvidia-orders-suppliers-halt-work-china-focussed-h20-ai-chip-information-says-2025-08-22/
2•acossta•40m ago•1 comments

Show HN: RipBroker – Find Flats and Flatmates Nearby You

https://ripbroker.com/about-us
1•devaldpatel•40m ago•0 comments

Good news for KDE users: Plasma 6.5 will launch with a new OOBE wizard

https://www.neowin.net/news/good-news-for-kde-users-plasma-65-will-launch-with-a-new-oobe-wizard/
1•bundie•41m ago•0 comments

The design decisions Anthropic made when designing Claude Code

https://old.reddit.com/r/ClaudeCode/comments/1mwi1jq/what_claude_code_does_differently_inside_its/
1•ppsreejith•46m ago•0 comments

Cheap RL tasks will waste compute

https://www.mechanize.work/blog/cheap-rl-tasks-will-waste-compute/
1•vinhnx•49m ago•0 comments

Show HN: AgentState – Lightweight state manager for multi-agent AI workflows

https://github.com/ayushmi/agentstate
2•boulevard•50m ago•0 comments

Learning Curves of TypeScript

https://www.samjarman.co.nz/blog/learning-typescript
1•_samjarman•50m ago•0 comments

AI Is in a Weird Spot

https://www.samjarman.co.nz/blog/ai-august-25
1•_samjarman•51m ago•0 comments

Train robots with Pi0, Lerobot and human pose motion retargeting

https://github.com/rerun-io/pi0-lerobot
1•Tycho87•55m ago•0 comments

Is it illegal to not buy ads on X? Experts explain the FTC's ad fight

https://arstechnica.com/tech-policy/2025/08/is-it-illegal-to-not-buy-ads-on-x-experts-explain-the-ftcs-bizarre-ad-fight/
3•pseudolus•58m ago•1 comments

Show HN: Ccoutputstyles – Shareable output styles for Claude Code

https://ccoutputstyles.vercel.app
1•virtuallyvivek•1h ago•0 comments

How Jane Street Does Code Review

https://www.janestreet.com/tech-talks/janestreet-code-review/
2•dgs_sgd•1h ago•0 comments

Habitual fluid intake influences cortisol reactivity to psychosocial stress

https://journals.physiology.org/doi/abs/10.1152/japplphysiol.00408.2025
3•pizza•1h ago•0 comments
Open in hackernews

Popular Japanese smartphone games have introduced external payment systems

https://english.kyodonews.net/articles/-/59689
106•anigbrowl•5h ago

Comments

shortrounddev2•5h ago
>A Kyodo News survey found that among the top 30 best-selling game titles in 2024, at least 11 of the 16 offered by domestic companies have introduced payments through external websites.

~70% (of the top 16 Japanese Game titles, or, 11 of them)

Fuck google and fuck apple, but this isn't exactly a large sample

eplawless•4h ago
I'm sure it is by revenue.
1523124•4h ago
If we count by revenue, I am certain it will be the same.
kg•4h ago
If you look at the data from places like https://revenue.ennead.cc/revenue you can see that there's not an even spread of revenue but instead a cluster of big winners towards the top.
ronsor•4h ago
Yes, gacha games are always seeking the most optimal path from the player's wallet to the corporate checking account.
CBMPET2001•3h ago
True, but Apple and Google were never any impediment to that beyond just skimming some off the top.
ivape•2h ago
30% is not skimming.
jerlam•4h ago
Does this take into account that many "smartphone games" are playable via multiple platforms, and would need a non-in-app payment process anyway?
BLKNSLVR•4h ago
Title of the article itself seems to have changed to:

70% of Japan smartphone games bypass in-app payments to avoid IT giants

I think it should be:

70% of Japan smartphone games bypass in-app payments to avoid unnecessarily additional costs to customers

Or more inflammatorily:

70% of Japan smartphone games bypass in-app payments to avoid unnecessarily parasitic middlemen

Cloudef•3h ago
For parasitic games that certainly aren't just illegal casinos
micromacrofoot•3h ago
yeah they're fighting over who gets more of our blood
georgeecollins•26m ago
Well good news, the fight has been won by Only Fans, Fan Duel, Robinhood, Coinbase, etc. But keep your pearls handy to clutch over loot boxes.
johnecheck•1h ago
The 30% cut hurts every developer, not just the minority building bad games that make the world worse.
anigbrowl•3h ago
I edited the title to make it more informative. The original was confusing because I thought it might be about Softbank or SNS (social media) firms like LINE.
galkk•4h ago
I just don’t understand - where the 30% take away by store number is coming from and why giants are fighting tooth and nail to keep it.

Obviously I don’t know economics and costs behind it, but from very uninformed point of view it feels that even 10% would still give quite a profit to stores, even after processor fees.

2OEH8eoCRo0•4h ago
It's an ungodly corrupting amount of money.
simmerup•3h ago
The fact you're thinking 10% is good enough is why you're not part of the cohort which is driven to be 100+ billionaires, more powerful than states, people
bluefirebrand•3h ago
Maybe we should be identifying those types of people and preventing them from ever controlling anything?

I mean, if we ever want society to improve at all

micromacrofoot•3h ago
doesn't sound like freedom to me
bluefirebrand•1h ago
If you want absolute freedom for people to exploit society for their personal gain, then I want absolute freedom to use a brick to cave in the skulls of anyone who behaves that way

The fact is that any decent society has restrictions on absolute freedom for good reasons

hattmall•3h ago
Maybe we need to limit them a bit more, but there's an evolutionary factor or purpose or something at play. I remember a psychology lecture where they talked about it and how in hunter and gather societies most people would be content for a while when they found a good gathering area, they would hang out and gather the food and eat. But they had certain people that didn't want to stay they just wanted to move on to find the next better gathering area and would practically be forced to eat and carry enough food before they could keep searching. Those people were important too, and I feel that's the psychology of billionaires today. There is never enough they don't even actually care about the bounty it's just the idea of getting more and more.

I also remember an experiment found that something like 8% of people swerve over to purposely hit turtles on the shoulder of the road. I would be much more interested in identifying and containing those people.

bluefirebrand•1h ago
I don't think most billionaires are the people seeking new berry patches. At best they once found a great berry patch, now they mostly are paying other people to find berries for them

All I'm saying is that if there aren't enough berries to go around, maybe we should be taking a long look at the people hoarding enough berries to feed thousands of other people

binary132•3h ago
If more people would just be insanely greedy they would probably be billionaires too!
tyre•3h ago
Many people are insanely greedy. Becoming a billionaire is exceedingly difficult. It’s not a matter of others simply not wanting it enough.
ekianjo•3h ago
The market owner sets the rates. If you are not happy, good luck creating your own market with your huge user base.
npinsker•3h ago
IIRC Epic Games internally calculated that for their store the break-even point was around 9%. (They mostly run it as a loss leader at a default 12%, but with tons of giveaways and deals, so that percent can go as low as 0%.) So I think somewhere around 15-18% might feel “fair” to me, trying to take into account the value of the platform.
throwaway13337•3h ago
Why wonder whats fair when we could let the market decide?

E-feudalism isn't capitalism.

The gatekeepers are governments without democratic representation. Wondering what fair exploitation looks like is choosing a warped perspective.

roflyear•3h ago
That is exactly what happens if they can enforce payments: "you don't get to be on our store if you're bypassing this"

But it isn't what is happening if they are staying on the platform's marketplaces and also bypassing payments. There is no "market" effect there.

Not saying I agree with the 30%, but third party app stores exist. That is the market avenue (and no one uses them).

fluoridation•2h ago
"There is no market effect"? Why do the market effects disappear if some of the players don't play completely according to the desires of other players? Why couldn't it be that the optimum includes some amount of fee dodging?
layer8•3h ago
30% has been the video games cut going as far back as the NES. Mobile app stores adopted that standard figure.
wmf•3h ago
Retail stores have always charged 30-40% so that's where the number comes from. You can see the exact breakdown in Europe: it's x% for payment processing, y% for app review/downloads/updates, and z% for recommendations etc. They're fighting to hold on to it because it's billions of dollars of profit. Obviously the app stores do not need or deserve 30% but that argument could apply to any profitable company.
micromacrofoot•3h ago
they probably regret not making it higher, they're making mountains of money
DrNosferatu•2h ago
30% on the App Store was an answer to Nokia’s Ovi store some 70%!
raincole•40m ago
> even 10% would still give quite a profit to stores

In other words, 30% would give quite a profit to stores, plus 20%. That's why giants are fighting tooth and nail to keep it.

cute_boi•3h ago
I don't know why countries around the world aren't concerned with 30% fees to apple and google playstore.
owebmaster•3h ago
They are. The US government smacks them with tariffs and lawsuits judged by themselves
ryankrage77•3h ago
Apple and Google insist their walled gardens are needed for user safety and security, but they can't even catch popular apps violating their own policies. It casts (even more) doubt on their ability to screen for malware, phishing, etc, which are already rampant.
echelon•3h ago
The DOJ/FTC need to end app stores on phones.

Two companies can't own all of computing.

Smartphones are the internet for most people, and two companies have installed comprehensive paywalls and distribution gateways.

It's unnatural how large and complete their monopolies are.

Call your legislator and demand web installs without scare walls and hidden developer flags. With no phony restrictions on app type, technology choice, JIT/runtimes, or UI adherence.

We need complete freedom on mobile.

ronsor•2h ago
I agree, but we shouldn't end app stores entirely. I don't want to go back to the days of Windows in the 2000s where you always had to download random executables from websites to install software.
999900000999•1h ago
>We need complete freedom on mobile.

Technically alternative stores exist on Android.

On IOS you can argue customers are paying for security.

Stopping Billy from downloading a key logger is a corporate choice Apple makes.

If you need to install random binaries from the internet your free to buy android device or a cheap computer.

iOS reduces the attack surface.

Gunax•1h ago
And yet, people keep buying i Phones. They have a choice. And they are opting in to a closed platform. Likewise with PlayStations and Wiis versus computer games.

Consumers largely don't care and are not interested in esoteric concepts like free software. I would be careful about dictating how things should work.

musicale•51m ago
> The DOJ/FTC need to end app stores on phones.

Game developers like Epic would certainly like to pay less money to Apple and Google than they pay to Nintendo and Sony (and Microsoft for the Xbox game store), but what's the legal argument for terminating Apple and Google's walled-garden game store businesses? And doesn't Android already allow sideloading?

> Smartphones are the internet for most people, and two companies have installed comprehensive paywalls and distribution gateways.

The web is the internet for most people, and neither Apple nor Google have installed paywalls and distribution gateways for third-party web pages. (Apple does restrict browser engines, but ironically that might be the only thing preventing a chromium monoculture.)

musicale•1h ago
You're not wrong, but Apple and Google probably remember things like the Facebook VPN fiasco of 2018, where Facebook's VPN app was banned from the app store for breaking privacy rules – and then they turned around and abused enterprise app certificates to sidestep the ban.

> By installing Onavo, millions unknowingly granted Facebook full access to their digital activity. App usage, browsing habits, and precise timestamps were silently collected. Facebook VPN didn’t just observe its own users - it tracked behavior across rival platforms like YouTube, Amazon, and Snapchat.

> ... Engineers exploited Onavo’s infrastructure to install a root certificate on phones, masking Snapchat’s servers to decrypt user activity.

This is an obvious security hole that should never have existed, but the fact that Facebook eagerly exploited it, while abusing VPNs for tracking and enterprise certs for sidestepping app store privacy rules, shows the threat landscape.

https://www.analyticsinsight.net/news/when-facebook-used-vpn...

autoexec•3h ago
If only those games weren't infested with micro/macro transactions to manipulate players out of their money in the first place. Mobile gaming is a cesspool of ads, gambling, greed, data collection, and bullshit all of which has been slowly spreading like a cancer to gaming on every other platform for decades. I'm not happy about Apple and Google demanding a cut of the action either, screw them too, but making these tactics even more profitable for shitty mobile game devs isn't going to benefit players.
georgeecollins•2h ago
How dare they charge for that slot machine!

More seriously: There have always been mobile games that have a purchase price or ask for a single payment. You could find one right now. The vast majority of popular apps have in game transactions. Game developers just want to get paid for the work they do.

thejohnconway•1h ago
Interestingly, in the Apple App Store, there is no option to filter by "paid". Only free. I want an option to filter by "paid, no IAP". Actually, I don't mind IAp for things like new levels and such. It's just so badly abused by mobile games.
mister_mort•1h ago
Every so often Apple will themselves feature a selection of popular pay-once-and-get-it-all games in the store as an ad capsule.

... actually, I just checked, and if you scroll down enough in the Games tab on your iPhone's App Store app, they seem to be running it now under "Pay Once & Play". Might be worth a look.

musicale•1h ago
It's a shame they hide these things below the fold.
musicale•1h ago
Apple made one concession to consumer protection law and the FTC by changing the "free" button to "get", but I'm sure they know how those slot machines work, and where the money comes from.

At one point in-app purchases were listed clearly and prominently so they were easy to inspect (and hopefully embarrassing for nonsense like $99 wheelbarrows of smurfberries[1].) Now it seems like IAP rates are hidden below the fold, unfortunately.

[1] https://www.pipelinecomics.com/smurfberries-apple-app-store-...

georgeecollins•42m ago
I'm not saying the Apple store isn't responsible for the problems of free to play. They really are. Apple has a memory of when their hardware was beholden to software like Adobe or Microsoft and they designed the store to avoid that problem. It really favors cheap apps, and they used to really discourage offering a sample and then unlocking the full app for a purchase. This was supposed to be so you didn't have "bait and switch" but really it just trained people to think no app was worth paying for. Even though they did pay so much for loot boxes..

So now there's an alternative way to pay. Let's be happy about that.

musicale•1h ago
When games went "free to play", platform commissions for in-app purchases (sometimes misleadingly called "payment processing charges") were the only way that walled-garden game stores could make money from them.

The irony is that Japanese game platforms have been using the walled-garden licensing and platform fee business model for more than 40 years[1], and it continues today in the Nintendo eShop and PSN store. I doubt Nintendo and Sony are going to reduce their platform fees just because developers don't like them.[2]

[1] https://en.wikipedia.org/wiki/CIC_(Nintendo)

[2] https://www.1d3.com/blog/platform-fees

Interestingly enough the Wikipedia article claims that Nintendo introduced DRM and licensing to combat shovelware. But shovelware on Nintendo platforms has continued to be a problem from the Wii to the current Switch eShop.

georgeecollins•39m ago
You are 100% right! The difference is that a phone is necessity that tends to a monopoly, unlike say a PlayStation or a handheld game platform. But no question in the game space where you can choose platforms, a walled garden is great. That's why Steam is really good, and if it wasn't you could get your games from the Windows app store, or the Epic Store..
whatsupdog•12m ago
At least they give the user the option to pay or not pay, unlike Apple that forces developers to not have any other option.
Razengan•2h ago
Apple provides an almost-always guaranteed refund process for purchases made through the App Store, usually no questions asked.

No way do I want to trust randoms with my payment info.

Hell I just purchased a Claude.ai Pro Subscription and there's no way to remove my card info afterwards. No way to contact support (the useless chatbot send button is grayed out).

If I recall correctly the major proponents of the push for external payment systems on the App Store were companies like Match.com who own Tinder etc. and indulge in various scummy user-hostile practices (like charging certain demographics higher for the same service). Sure, break the "walled garden" and let the wolves in.