Hacker News: hiyer

New comment by hiyer in "First G-SHOCK with a heart rate monitor, also featuring Smartphone Link"

hiyer — Tue, 28 Apr 2026 11:55:56 +0000

Very poor. Hardly lasts a week with step tracking and heart rate enabled. Like someone else mentioned, go for a Garmin instinct 2 or 3 solar. My 2 Solar lasts more than 30 days on a full charge.

New comment by hiyer in "Rumor: Anthropic is going to buy Atlassian?"

hiyer — Mon, 20 Apr 2026 22:54:03 +0000

Not unlikely given the crash in Atlassian's share price over the last year or so. When I was in NetApp a long time back, such rumours would often do the rounds when the share price took a dip, with Oracle and IBM usually touted as the likely buyers. NetApp is still doing strong more than a decade later :-).

New comment by hiyer in "TigerBeetle: A Trillion Transactions [video]"

hiyer — Fri, 17 Apr 2026 00:35:35 +0000

Amazing. Easily the most learning I've had in 18 minutes (I watched at 1.2x speed) in my life.

New comment by hiyer in "S3 Files"

hiyer — Tue, 07 Apr 2026 23:21:29 +0000

I was thinking of using it with Duckdb as well but seems it would be of limited benefit. Parquet objects are in MBs, so they would be streamed directly from S3. With raw parquet objects, it might help with S3 listing if you have a lot of them (shave off a couple of seconds from the query). If you are already on Ducklake, Duckdb will use that for getting the list of relevant objects anyway.

New comment by hiyer in "We rewrote JSONata with AI in a day, saved $500k/year"

hiyer — Fri, 27 Mar 2026 02:41:22 +0000

I was thinking the same - if JSONata was a priority for them, why not choose a language with good support, like JS or Java? OTOH if development language was a priority why not choose a format that is well supported in it?

New comment by hiyer in "Java is fast, code might not be"

hiyer — Sat, 21 Mar 2026 03:11:43 +0000

Thanks! I'm using Instant.parse at present and this is supposedly 37x faster. Will definitely give it a try.

New comment by hiyer in "Java is fast, code might not be"

hiyer — Fri, 20 Mar 2026 15:50:00 +0000

I ran into 5 and 7 in a Flink app recently - was parsing a timestamp as a number first and then falling back to iso8601 string, which is what it was. The flamegraph showed 10% for the exception handling bit. While fixing that, also found repeated creation of datetimeformatter. Both were not in loops, but both were being done for every event, for 10s of 1000s of events every second.

New comment by hiyer in "How do you capture WHY engineering decisions were made, not just what?"

hiyer — Sat, 14 Mar 2026 04:41:10 +0000

> documentation survives when it lives next to the code. 15+ years ago, this was pretty much the standard. Every decision - whether major or just a hack to handle a corner-case - used to be recorded in the code itself. Then tools like Jira and Confluence came in and these things moved to undiscoverable nooks and corners of the organization. AI search tools like Glean and Rovo have improved the discoverability, though I'd still prefer things to remain in the code.

New comment by hiyer in "Atlassian to cut roughly 1,600 jobs in pivot to AI"

hiyer — Thu, 12 Mar 2026 12:07:59 +0000

Rovo dev cli is pretty good though. Though that may just be because it talks to claude or openai in the backend.

New comment by hiyer in "Atlassian to cut roughly 1,600 jobs in pivot to AI"

hiyer — Thu, 12 Mar 2026 04:14:18 +0000

They have enough enterprise customers to pay the bills for years though.

New comment by hiyer in "How the Sriracha guys screwed over their supplier"

hiyer — Mon, 09 Mar 2026 10:45:41 +0000

I loved their dry seasoning [1]. Bought some when I visited the bay area several years back and used to use it on everything from toasts to pasta. Sadly, haven't visited US since to be able to pick up some more :-(

1. https://www.amazon.com/Pepper-Plant-Seasoning-11-oz/dp/B01LY...

New comment by hiyer in "Oat – Ultra-lightweight, zero dependency, semantic HTML, CSS, JS UI library"

hiyer — Sun, 15 Feb 2026 11:06:15 +0000

Reminds me of what bootstrap [1] was like around a decade ago. It's gotten quite a bit bloated since then though.

1. https://getbootstrap.com/

New comment by hiyer in "Ex-Tech –> Homeless in SF"

hiyer — Sun, 15 Feb 2026 08:16:42 +0000

> A start-up I had been a part of in New York. Where I was the first employee. I had owned equity. They had eventually sold for $350 million.

What happened to the author's equity?

New comment by hiyer in "Show HN: I speak 5 languages. Common apps taught me none. So I built lairner"

hiyer — Sun, 15 Feb 2026 06:20:14 +0000

Tried the app for Kannada. The "AI explanation" didn't work for any phrase, but the first lesson seemed to be quite useful otherwise.

New comment by hiyer in "Did a celebrated researcher obscure a baby's poisoning?"

hiyer — Thu, 29 Jan 2026 03:22:10 +0000

Not just that, but potentially 17 other guilty caregivers have been cleared of suspicion based on the findings in that paper.

New comment by hiyer in "Open sourcing Dicer: Databricks's auto-sharder"

hiyer — Wed, 14 Jan 2026 03:37:07 +0000

Yes he did. I attended a talk from him on the same, so that's how I know.

New comment by hiyer in "Replit founder Amjad Masad isn’t afraid of Silicon Valley"

hiyer — Sat, 10 Jan 2026 00:50:28 +0000

Let's not forget Laos and Cambodia, where unexploded munitions dumped by the US decades ago are killing and maiming people even today - https://www.humanium.org/en/unexploded-bombs-still-endanger-...

New comment by hiyer in "Replit founder Amjad Masad isn’t afraid of Silicon Valley"

hiyer — Fri, 09 Jan 2026 00:57:25 +0000

Seems like a silly excuse. If his concern is that Israel could use Replit for military purposes, then SA is perfectly capable of doing the same. And SA has - directly or indirectly - killed more people in Yemen than Israel has in Gaza.

New comment by hiyer in "The 70% AI productivity myth: why most companies aren't seeing the gains"

hiyer — Wed, 31 Dec 2025 06:08:57 +0000

In my experience, this kind of productivity can only be seen in small startups or, if in a large company, on an entirely new product line when processes like test coverage, reviews, etc are lax. In large firms and existing code-bases, it can take weeks to even get the approach decided. Even once decided, any pull request larger than a few dozen lines will get shot down. Things are even worse if you're working across time zones because the to-and-fro on pull requests takes several days to be completed.

New comment by hiyer in "I misused LLMs to diagnose myself and ended up bedridden for a week"

hiyer — Wed, 10 Dec 2025 01:15:15 +0000

The author doesn't say don't trust doctors or trust chatgpt. He says don't trust "a single doctor" and look for a second opinion whenever possible.