Hacker News: asutekku

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.

New comment by asutekku in "Ubuntu 26.04 Ends 46 Years of Silent sudo Passwords"

asutekku — Sun, 22 Mar 2026 01:19:49 +0000

That must be something you have changed, because if I have capslock enabled, it shows the capslock icon in the input field and the key is pressable to disable it for me.

New comment by asutekku in "Google details new 24-hour process to sideload unverified Android apps"

asutekku — Fri, 20 Mar 2026 02:40:06 +0000

Spark is a good replacement for Sparrow.

New comment by asutekku in "Discord/Twitch/Snapchat age verification bypass"

asutekku — Thu, 12 Feb 2026 05:47:17 +0000

It's slightly different to access your bank account vs chatting with your friends.

New comment by asutekku in "Show HN: I built a word game. My mom thinks it's great. What do you think?"

asutekku — Sun, 06 Apr 2025 04:20:56 +0000

The thing with chess, even if you don't know the rules, you can still play and (potentially) lose the game. If you don't know some random american trivia, you're stuck forever.

New comment by asutekku in "Show HN: Tinder, but to Decide What to Eat"

asutekku — Mon, 04 Nov 2024 05:26:42 +0000

If you want to make a living with apps, you kind of have to advertise.

New comment by asutekku in "The only tourist in Moldova"

asutekku — Fri, 19 Jul 2024 02:23:38 +0000

Drinks made out of pine needles are pretty common. They have a very distinct nice taste.

New comment by asutekku in "SCIM: Ncurses based, Vim-like spreadsheet"

asutekku — Fri, 05 Jul 2024 10:51:55 +0000

i am able to program but hell no i will start to crunch numbers programmatically unless it's something a basic spreadsheet can't do. i use spreadsheets exactly because i don't need to code and create something from scratch.

but while this is not for me (no interest in learning vim), i'm pretty sure many other people will find this useful

New comment by asutekku in "Japan's Nikkei surpasses 1989 all-time high"

asutekku — Thu, 22 Feb 2024 03:15:14 +0000

> Ordered a bunch of sushi at a mall sushi place in Kyoto for what it would cost for Chipotle in DC

Mall sushi has always been cheap in japan