Hacker News: asutekku

New comment by asutekku in "Nashville uses eminent domain to block data center near zoo"

asutekku — Thu, 06 Aug 2026 03:16:56 +0000

Golf courses do not emit noise, they are relatively nice looking and they are not a threat for people to be unemployed.

New comment by asutekku in "Google fixed more Chrome bugs in June than over the past two years, thanks to AI"

asutekku — Fri, 31 Jul 2026 09:21:56 +0000

I've had a completely different experience. I usually know the problematic part and then ask the AI to optimize that exact part with benchmarks, telling it to try various different approaches, and it very often gains massive performance increases on various tasks, with me of course steering it and giving it pointers every now and then.

I was able to optimize a physical water simulation that was almost unrunnable on browsers to a buttery smooth 60fps version.

New comment by asutekku in "7.1 Earthquake in Japan"

asutekku — Tue, 28 Jul 2026 11:22:04 +0000

The regulations got hardened in 1991. Obviously there has been earthquakes forever, but the buildings were not built to withstand them. That's one of the reasons why Japanese do not buy old homes: they are not earthquake proof.

New comment by asutekku in "7.1 Earthquake in Japan"

asutekku — Tue, 28 Jul 2026 08:35:34 +0000

Like half of the buildings are non-resistant since they are old and made of wood. IIRC only buildings built after 1991 are guaranteed to be earthquake resistant.

New comment by asutekku in "The Anti-Mac User Interface (1996)"

asutekku — Thu, 16 Jul 2026 01:47:00 +0000

Note that this is mostly true in cheaper/chain restaurants. Overwhelming majority of izakayas have the menu's to be handwritten / written on the wall without any pictures.

New comment by asutekku in "Japanese verb conjugation the simple hard way"

asutekku — Mon, 22 Jun 2026 09:42:49 +0000

Most people use hepburn these days, it's people who learned japanese 20 years ago or so who are still stuck with kunrei.

New comment by asutekku in "Japanese verb conjugation the simple hard way"

asutekku — Mon, 22 Jun 2026 08:37:04 +0000

Hepburn is the official romanization chosen by the Japanese government (it's a relatively recent change), kunrei-shiki has been deprecated and all the signs etc are in the process of being converted to Hepburn.

New comment by asutekku in "Japanese verb conjugation the simple hard way"

asutekku — Mon, 22 Jun 2026 08:34:48 +0000

Kunrei has been deprecated, Hepburn is the official one even the government of Japan recommends these days and matches better the pronunciation of the language.

New comment by asutekku in "The Harajuku Moment (2024)"

asutekku — Thu, 18 Jun 2026 18:24:24 +0000

By eating different foods. I frequently get filling bento boxes in japan that are ~500-600 calories. And drinking when is extremely counterintuitive when trying to maintain/lose weight.

New comment by asutekku in "ggsql: A Grammar of Graphics for SQL"

asutekku — Tue, 21 Apr 2026 02:37:15 +0000

> What do I gain by using this over ggplot2 in R?

You don't have to use R.

New comment by asutekku in "M 7.4 earthquake – 100 km ENE of Miyako, Japan"

asutekku — Mon, 20 Apr 2026 14:41:08 +0000

I use NERV, it gives you a countdown timer and i like to know whether to prepare or not

New comment by asutekku in "M 7.4 earthquake – 100 km ENE of Miyako, Japan"

asutekku — Mon, 20 Apr 2026 12:01:51 +0000

Depends on the location, the alert comes usually as soon as the initial tremors are registered. If you're at the epicenter, tough luck. For example, for me in Tokyo, the alert came 2 minutes before it hit, and even then, the actual earthquake was extremely subtle.

New comment by asutekku in "The secrets of the Shinkansen"

asutekku — Tue, 14 Apr 2026 11:52:27 +0000

Having followed some tourists coming to Japan, a large amount of the people appreciate convenience, and the rail pass gives them that. The price is secondary.

Hell, there are even people paying the equivalent of 100 USD just to have someone pick them up from the Haneda airport and accompany them to the hotel. Not even a taxi service, just to be with them to buy them the train tickets, etc.

New comment by asutekku in "The secrets of the Shinkansen"

asutekku — Tue, 14 Apr 2026 11:48:31 +0000

They actually started doing that very recently, converting old Shinkansen into a freight trains. Obviously you can't fit large cargo, but it's a good option for fast transport of parcels etc.

https://www.japantimes.co.jp/business/2026/03/24/companies/f...

Show HN: I built an app using Apple Watch's water and HR sensors to track baths

asutekku — Tue, 07 Apr 2026 07:44:28 +0000

Hey HN! First Show HN for me - niche app, but I think it nails something that hasn't been done properly before.

Furolog (フロログ — furo = bath, log = logging) is an iOS + watchOS app that uses the Apple Watch underwater temperature sensor to automatically track onsen, sento, and sauna sessions. Everything runs and is stored locally.

How it works: The core is an algorithm built on CMWaterSubmersionManager, heart rate, and motion data that detects whether you're bathing, resting, or in a sauna and segments sessions accordingly: hot bath, cold plunge, sauna, rest. No manual input. I think this is one of the few genuinely valid use cases for CMWaterSubmersionManager outside of diving.

Automatic detection isn't perfect — and probably never will be, since everyone's body responds differently to heat. There's a manual mode for that, and anything that doesn't happen in water requires confirmation before it's logged :)

I also went fairly deep into the physiology literature while working on this. HR zones in the app are adapted from sport training zones to reflect thermal stress rather than exercise effort, along with cold interval recovery metrics and a few other tidbits I found interesting while researching.

Why I built it: I've lived in Japan for quite a while now and have been obsessively tracking heart rate in saunas and sentos with generic HR apps. The data was always scattered, and Apple Health's HR visibility is basically limited to during the session. Last summer while diving in Okinawa I realized my Apple Watch 10 had a water temperature sensor and that was the missing piece. This app is built first and foremost for me, but I'm pretty sure other people would appreciate it too.

The app gives you temperature curves, HR analysis, session timelines, and full visit history. There's also an explore view for finding nearby spas, though Apple MapKit's coverage in Japan leaves something to be desired. I'm considering migrating to OSM-linked data that users could contribute to.

Built natively in SwiftUI. Core functionality and session-level stats are free. A one-time purchase (or small subscription) unlocks lifetime/monthly aggregate stats if you want to learn more.

If you're into onsen, sento, or sauna culture, I'd genuinely love feedback. - https://apps.apple.com/jp/app/furolog/id6760871897?l=en-US

Note: Apple doesn't recommend taking Watch into a sauna or hot water BUT after two years of frequent personal use, mine has been fine :)

Comments URL: https://news.ycombinator.com/item?id=47671940

Points: 1

# Comments: 0

New comment by asutekku in "Slop is not necessarily the future"

asutekku — Wed, 01 Apr 2026 14:19:00 +0000

> Most if not all software I use is selected by its disk/memory footprint and performance.

If that would be true, electron apps would not exists and everything would be a native software. But alas, most modern products, even before vibe-coding are horrible performance-wise.

Of course it depends on the context, but consumer facing products have been awful in terms of performance for a while now.

New comment by asutekku in "Ollama is now powered by MLX on Apple Silicon in preview"

asutekku — Tue, 31 Mar 2026 06:39:32 +0000

Frontier model has much better knowledge and they usually hallucinate less. It's not about the coding capabilities, it's about how much you can trust the model.

New comment by asutekku in "People inside Microsoft are fighting to drop mandatory Microsoft Account"

asutekku — Sat, 28 Mar 2026 08:28:02 +0000

Most common use cases (bar social media): - Navigating - Emailing - Texting - Browsing internet

All this is available without an account.

New comment by asutekku in "ARC-AGI-3"

asutekku — Thu, 26 Mar 2026 06:33:55 +0000

"a harness for a memory" so it still requires external tools to work well. The whole point of this benchmark is to validate the systems can solve problems without any sort of outside help.

New comment by asutekku in "Chest Fridge (2009)"

asutekku — Sun, 22 Mar 2026 02:51:20 +0000

It's inconvenient as soon as you need to get something from the bottom of the fridge, kitchen layout does not change this one at all. And I grew up in a home with multiple chest fridges in addition to a shelved ones so I know the hurdles.

They are good to store something you're not accessing all the time though, like frozen berries etc.