Hacker News: jordz

New comment by jordz in "Rio de Janeiro's "homegrown" LLM appears to be a merge of an existing model"

jordz — Sun, 14 Jun 2026 18:02:41 +0000

Can someone please explain or link to some information about how models are merged? Is this genuinely merging weights mathematically or some kind of distillation (presumably not if they’ve done zero training as the post suggests).

New comment by jordz in "Maximizing Battery Storage Profits via High-Frequency Intraday Trading"

jordz — Thu, 12 Jun 2025 11:37:19 +0000

I work in the industry making hardware and software for large scale commercial and grid scale storage.

There are several challenges with this, safety, thermal runaway, and life cycle of the asset which has a limited amount of cycles.

Also the architecture of the system for the AC inverters and the DC side can come from very different places in the supply chain and aren’t as vertically integrated leaving you in a position where you can’t actually make this work without compromising something in the supply chain. That being said we are talking about a LOT of energy in these systems and to dissipate that much heat you’d need a load bank.

New comment by jordz in "Japan's Moon lander makes it through another lunar night"

jordz — Sun, 28 Apr 2024 20:43:56 +0000

It was edited. It definitely had -274 (:

New comment by jordz in "Japan's Moon lander makes it through another lunar night"

jordz — Sun, 28 Apr 2024 11:09:40 +0000

Does anyone else find it strange that craters on the moon can reach a temperature lower than absolute zero, according this article anyway? =)

New comment by jordz in "A new method boosts wind farms’ energy output, without new equipment"

jordz — Fri, 12 Aug 2022 20:44:37 +0000

Cool. We have worked with a customer on this exact thing and deployed an edge and cloud controller that orchestrates control changes based on the all the turbines. Such a great project!

New comment by jordz in "It's quite hard to lose a Duolingo streak"

jordz — Sun, 03 Jul 2022 13:01:55 +0000

Lost my 635 day streak last week, offered £5.99 or something to repair it. I was pretty gutted but actually on reflection, the gamification just added undue stress. Duolingo is great for vocab and repetition, it was only with a tutor that I really became conversational.

New comment by jordz in "An argument for a return to Web 1.0"

jordz — Thu, 14 Apr 2022 13:57:31 +0000

Also agree. However, I do yearn to relive the days where one can load up a web page and start reading content, without being jarred by pop-ups and ads that inadvertently move the content post load (which of course happens 3 seconds later..).

New comment by jordz in "Movies every physics lover should watch (2020)"

jordz — Thu, 13 May 2021 13:22:32 +0000

Ahh this has made my day. I haven't seen a number of these, they all look exactly like the kind of film I'd love to try.

Thank you for sharing!

New comment by jordz in "Amazon Sidewalk"

jordz — Tue, 11 May 2021 10:46:00 +0000

"Amazon does not charge any fees to join Amazon Sidewalk"

Not to the end customer anyway. To organizations and developers building on top of the APIs...

Completely against this idea though its a shame its not... "Get paid for hosting a network using the devices you purchase from us"*

Lastly, it is a cost albeit negligible to the end user who installs the device (power, bandwidth, etc).

*I know it wouldn't amount to anything but its a interesting way to think about it.

New comment by jordz in "TimescaleDB raises $40M"

jordz — Wed, 05 May 2021 15:38:15 +0000

We too are also doing something similar. We've just started the move to timescale for real-time energy and sensor data from industrial assets. We have a single customer with about 10TB of data and growing from 2 years worth of real-time monitoring which is stored in a mixture of table storage and SQL. Timescale on PG seems like blessing for our future plans :)

New comment by jordz in "Launch HN: Finmark (YC S20) – Financial planning software for startups"

jordz — Fri, 22 Jan 2021 15:24:11 +0000

https://floatapp.com/ (£39.99/month to start with)

New comment by jordz in "Launch HN: Finmark (YC S20) – Financial planning software for startups"

jordz — Thu, 21 Jan 2021 17:25:49 +0000

There is definitely a need for better technology for start-ups in this space.

Having said this, I don't know what this product does from the website.

We pay ~$80 a month for 2 users to a financial planning application that integrates with our accounts (Xero) and it works well. Our revenue is 7 digits annually.

As a start-up founder, I appreciate what you're trying to do with your model but I kind of like, you know, just knowing the fixed costs regardless of our revenue.

New comment by jordz in "Build a Two-Way Pager with Lora"

jordz — Fri, 25 Dec 2020 17:07:22 +0000

Just a LoRa gateway without the WAN stack? There are usb serial devices for 20-30 pounds, you can use a raspberry pi with them for a cheap gateway. We’ve used some for development and testing. https://www.st.com/en/evaluation-tools/b-l072z-lrwan1.html

New comment by jordz in "It could be possible to transfer data through gravitational waves (2018)"

jordz — Sat, 26 Sep 2020 11:14:55 +0000

Yes

https://www.newscientist.com/article/dn3232-first-speed-of-g...

New comment by jordz in "An update to the Timescale license"

jordz — Thu, 24 Sep 2020 17:39:09 +0000

Hey! Maybe mfreed could answer this but how does this affect users of Timescale as part of Azure's Managed Posgres service, is this something that will still continue to be available?

New comment by jordz in "Show HN: dstack – an open-source tool to build data applications easily"

jordz — Wed, 12 Aug 2020 14:11:51 +0000

Does this need some License information adding to your repo? Something that protects you from someone taking this and running their own paid hosted version :) I take it it isn't MIT!

New comment by jordz in "Citymapper"

jordz — Sun, 22 Dec 2019 12:11:13 +0000

I’ve used it in NY and Tokyo. Fantastic app.

New comment by jordz in "Google Buys Fitbit for $2.1B"

jordz — Fri, 01 Nov 2019 21:22:37 +0000

And Alphabit...

New comment by jordz in "Ask HN: Recommended resources to learn the Linux kernel and OS theory?"

jordz — Tue, 27 Aug 2019 21:01:15 +0000

I really love to see this kind of stuff within the community. I'd really love to take you up on this offer sometime :)

New comment by jordz in "Blue Moon"

jordz — Thu, 09 May 2019 22:01:27 +0000

Hmm, no https?